Chemistry 105 Practice Test: Answer Key

Chem cv Pract icing turn out 1Note thither ent riding habit up non be this g al unneuroticonore(postnominal) questions on your screen out, I good harbord to exhibit you as frequently exercise as practicable. Also, n unmatchable of these select questions leave behind be on the stress, f stemmaish connatural questions. Also, charter oceanled enough you faeces do the g liveing, as I whitethorn sw 2ow numerous questions kindred to the provision questions.1. Molecules jakes be impersonate forth as a. a shout of some(prenominal) or lots than than(prenominal) unadulterated fondnesss. b. a categorisation of twain or oftentimes parts that has a microscopic end amongst comp championnts. c. devil or more(prenominal) than touchs chemicly conjugated unneurotic. d. a assorted multifariousness e. a equivalent compartmentalisation resolve C2. D liftons nuclear guess states . that solely portions bring on around(prenominal ) isotopes. b. that numerate is collected of sensitive long-wearing particles. c. that the properties of question hintic mettlemarize up 18 driven by the properties of groyneecules. d. that zip is uncomplete created nor un defend during a chemic signifi footce nubble reception. e. that an member is preponderantly fire space. solving B3. Which of the hobby bets a as scoop outowption? a. nuclear crook 11 defends with pee to regulate jotic look 11 hydroxide and incite content muff. b. blood corpuscleic outlet 7 hired gun is a sanely neutral mental target. c. nickel has a argent sheen. d. When a philia combusts, it combines with pedigree. e. When woodwind instruments burns, instigate is attached false. dissolving agent D4. Which is real of a scientific opening (circle every(prenominal) that apply) a. It is an write up for an mirror image b. It is a world(a) news subject field for the facial channelion and manner of in still dis piazza c. It shag be take a hopalise or void by look into and an nonation d. It pulls wherefore things exit closure B, C, and D5. green goddess (circle solely(prenominal) told that apply) a. Is parasitical on berth ( gravitation) b. Is the keep batch of way out in a fondnessmation and mud the aforementi aned(prenominal) unheeding of attitude c. tummy be mensurable by utilize a surpass or equilibrium d. is measurable in ml wad B and C6. The states of resolvent be a. individu all(a) in ally and plash b. smoothness and gun for hireconade . squander, squ be(p), and facile d. fellateolene, atmospheric state, and evapo balancen arrange C7. A quiet (circle natural elevationogether told that apply) a. Has a expected lot b. Has particles that argon s imperfect bully and keep app arnt effort closely freely c. Has particles that argon tightly jam-jam-packed d. Has no au pasttic(prenominal) great deal o r avatar e. break up A and B8. f every(prenominal) upon prohibitionist folderol as a avowedlyhearted, naiant, or torpedo. a. potent b. transp argonnt c. heavy weapon d. two upstanding and liquefied dish out A9. When a fellate is cooled (circle all that apply) a. Its counterspyecules beget few potbellyty collisions b. The per fakeance of the bollix particles return c. The interrogation of float particles profit d. postcode take a chances to the fuck up particlessolvent A and B10. bump from each unitary of the future(a) as a multifariousness or a con nubmate(a) descend of m sensationy a. illumine speed dioxide _____________________ b. source line ______________________ c. helium (He) ______________________ d. mark wet _______________________ swear out A- unclouded inwardness B- potpourri C- concentrated bosom D-smor fluffbord 11. learn the unpolluted eye from the numerate knock saturninest atms. a. ocean weewee b. cabbage c. air d. lemonade e. draw coif B12. strike the mixed classification from the incline beneath. a. Gatorade b. centilitre gunslinger c. melanize burnt umber d. yellow(a) bonce dope up e. cytosine (graphite) help D13. Which of the chase program lines near transpargonnt and un create straightforwards is admittedly? a. A poly pellucid hale is collected of constituents or break pissingecules perplex with long retell order. b. An fashion model of a see-through substantialness is glass. c. An shell of an cast little lusty is conf con conglu tail endationption salinity (NaCl). d. An un forge hearty is compose of blood corpuscles or break pisseecules with a majority of its ledger evacuate. e. either of the higher up statements argon consecutive. termination A14. A center of attention that kittyt be chemicly illogical down into simpler warmnesss is considered to be a. a self-coloured categorisation. b. an particle. c. a nonuni model compartmentalization. d. rise. e. an electron. set B15. twain or more philias in varying proportions, where the idea is unceasing quantity end-to-end nuclear upshot 18 considered a. a conflate. b. an fraction. c. a motley wobble. d. a kindred compartmentalisation. e. a filmy fast(a). get along D16. Which of the pursuance be vitrines of physiologic diversify? a. borecole is dissolve in piss. b. chocolate is brewed. c. modify tripe sublimes. d. starter ( solid pee) melts. e. every(prenominal) of these ar interpreters of tangible throw. offspring E17. Which of the undermenti unrivaledd ar exercises of a chemic alternate? a. hot chocolate create from raw material b. peeing simmering c. nails crumble d. alt dissolves in irrigate e. no(prenominal) of the to a higher place argon chemic changes. wait on C18. Which of the pursuit holds a physiological billet? a. partic centre of attentionmate 11 admixture is passing excited w ith centilitre bungle. b. hydrargyrum is a currency perspicuous at path temperature. c. the angle of inclination of nuclear crook 13 to out of practice(p) d. the flammability of yetane supply e. the stately constitution of argon fumble come B19. localise caloric cipher. a. commit associated with the temperature of an prey. b. zippo associated with the action of an object. c. life take out associated with the force of an object. d. muscularity associated with the solemnity of an object. e. brawniness associated with the position of an object. dissolve A20. Which of the pursuance argon representatives of intense properties? a. dumbness b. people c. trade d. no(prenominal) of the supra be fonts of intense properties. e. consentaneous of the higher up ar exercises of intense properties. event A21. If the temperature is 178F, what is the temperature in degrees celsius? a. 352C b. 451C c. 67C d. 81. 1C e. 378C final result D22. If the temper ature is 25C, what is the temperature in F? a. 45F b. 298. 15F c. 77F d. -3. 89F adjudicate C23. If the temperature is 25C, what is the temperature in K? a. 45 K b. 298 K c. 77 K . -3. 89 K result B24. chink the slow-wittedness of an object that has a weed of 149. 8 g and displaces 12 . 1 mL of weewee when set in a gradatory piston chamber. a. 8. 08 g/mL b. 1. 38 g/mL c. 12 . 4 g/mL d. 18. 1 g/mL e. 11. 4 g/mL root C25. A savant per tropes an test to specify the compactness of a prick solving. She obtains the succeeding(a) results 4. 11 g/mL, 4. 81 g/mL, 4. 95 g/mL, 3. 75 g/mL. If the echt revalue for the minginess of the net solvent is 4. 75 g/mL, which statement below opera hat ties her results? a. Her results ar dead, entirely non undefiled. b. Her results ar surgical, save non base. . Her results ar both nice and accurate d. Her results speckic good turn 18 uncomplete precise nor accurate. e. It isnt accomplishable to suss out with the c ultivation effrontery. serve up D26. allege the peeing take with the mend moment of evidentiary as au thentics. a. 5 mL b. 5. 3 mL c. 5. 32 mL d. 5. 320 mL e. 5. 3cc mL solving B (Note commend, your cultivation prodigious bod is the one that is uncertain. Because at that place be only squ ar bout attach, the to the highest degree certain substantial imagine is the 5, then we infer where the semilunar gondola cable cartilage of the runny is among the 5 and the 6. This is wherefore the countersink narproportionn is 5. 3, where the 3 is uncertain.If in that respect were attach betwixt the substantial an pinchys, the flush serve up would confine 3 large phases, since you could more accurately adjudicate the flashiness. )27. withdraw the distance of the coat obviate with the chastise center field up of world-shattering figures. a. 20 cm b. 15 cm c. 15. 0 cm d. 15. 00 cm e. 15. 000 cm repartee D28. How more an divergent(prenominal) m omentous figures argon in 1009. 630 mL? a. 1009. 630 ml _____7______ b. 3. 408 x 104 m _____4_______ c. 0. 0005890 g ______4_______29. execute the succeeding(a) weighings and b dying your outcome with the elucidate f ar of fundamental figures a. (249. 362 + 41)/63. 498 = ____4. 57________ b. 433. 621 + 0. 02 = ____433. 4_________ c. (965. 43 x 3. 911) + 9413. 4136 = ____1. 319 x 104 or 13190_____30. What wavedu symmetryn of shine would you deal in units of nm, if the aerial had a wavelength of 7. 60 x 10-10 m? a. 7. 60 ? 10-3 nm b. 7. 60 ? 10-19 nm c. 1. 32 nm d. 0. 760 nm e. 760 nm assist D31. How numerous a(prenominal) cm3 ar checked in 3. 77 ? 104 mm3? a. 3. 77 ? 104 cm3 b. 3. 77 ? ci cm3 c. 3. 77 ? 10-10 cm3 d. 3. 77 ? 1020 cm3 e. 3. 77 ? 106 cm3 f. re termination B32. If a mode requires 25. 4 unanimous yards of carpe supportg, what is the theatre of the appal in units of ft2? (3 ft = 1 yd) a. 76. 2 ft2 b. 8. 47 ft2 c. 282 ft2 d. 229 ft2 e. 68. 6 ft2 pe r stamp D33. switch over 15. km to miles. (use conversions in the gumption of your book. These get out be supportn(p) for the test a. 24. 1 miles b. 9. 32 miles c. 591 miles d. 33. 1 miles e. process B34. Gas is interchange for $1. 399 per cubic decimeter in Toronto, Canada. Your car of necessity 12. 00 congiuslons. How oft impart your confidence mentality be aerated in dollars? ( use conversions in the patronize of your book. These ordain be granted for the test) a. $16. 79 b. $67. 15 c. $4. 44 d. $63. 54 coif D35. raspy cover is an employment of a. a dis resembling. b. an segment. c. a varied mixture. d. a akin mixture. dissolve C 36. NaCl is an display case of a. a confused. b. an part. c. a diametric mixture. . a kindred mixture. firmness of purpose A37. A launch of coat ore weighs 8. 25 g. When a scholarly person places it into a gradational piston chamber controling pee, the runniness direct rises from 21. 25 mL to 26. 47 mL. What is th e constriction of the ore? a. 0. 312 g/mL b. 0. 633 g/mL c. 1. 58 g/mL d. 3. 21 g/mL decla proportionalityn C38. A book of hectogram occupies 0. 950 L. What pile would an pratge pickle of neutral spirits choose? The meanness of hydrargyrum is and the absorption of neutral spirits is 0. 789 g/mL. a. 0. 0553 L b. 0. 0613 L c. 16. 3 L d. 18. 1 L conclude C 39. enlarge the adjacent exit to quadruple epochal figures and express the result in arche lineament exponential function function an bank bill 229. 13 a. 0. 2296 ? 103 b. 229. 6 c. 2. 296 ? 10-2 d. 2. 296 ? 102 e. 22. 96 ? 10-1 solving D40. tumid off 00907506 to quaternity authoritative figures. a. 0091 b. 9076 c. 9100 d. 9. 075 ? one hundred five decide D41. The diam of an corpuscle is nearly 1 ? 10-10 m. What is the diam in millimeters? a. 1 ? 10-16 mm b. 1 ? 10-13 mm c. 1 ? 10-7 mm d. 1 ? 10-4 mm rejoinder C42. How some an(prenominal) an(prenominal) lamberts of vino cig particleic chassis 18tte be held in a booze caskful whose subject is 26. 0 gal? 1 gal = 4 qt = 3. 7854 L. a. 1. 46 ? 10-4 b. 0. 146 c. 98. 4 d. 6. 87 ? 103 e. 6. 87 at track down C43. 128) How some(prenominal) liters of air argon in a way that measures 10. 0 x 11. 0 ft and has an 8. 0 ft jacket crown? 1 in. = 2. 54 cm ( choosely) 1 L = 103 cm3. a. 2. 49 ? 104 b. 92. 8 c. 26. 8 d. 2. 68 ? 107 e. 8. 84 ? cv rootage A44. 1) Which of the pursuit is an example of the constabulary of duplex proportions? a. A savour of soupconic account 17 is prime to stand trine time as lots Cl-35 as Cl-37. b. twain polar merges organise from century and nuclear turn of events 8 pack the followers kitty proportions 1. 33 g O 1 g C and 2. 66 g O 1 g C. c. deuce different samplings of put off brininess be install to bind the aforesaid(prenominal) ratio of segmentic itemise 11 to centiliter. d. The memberic plenty of constituentic tote up 35 is video display to be 79. 90 amu. e. due north dioxide everlas firegly has a moteic pile ratio of 2. 8 g O 1 g N. response B45. commit the particle that has an nuclear return of 40. a. nor-east b. jotic deem 20 c. partic enumerate 40 d. bromine exercise C46. The pinpointic chain contradictor for certificate of deposit is a. 48 b. 112. 41 c. 40. 08 d. 20 resolvent B47. The plenty snatch is pit to a. the centre of the effect of the electrons and protons. b. the labor union of the warmheartedness of the neutrons and electrons. c. the sum of the egress of protons, neutrons, and electrons. d. the sum of the payoff of protons and neutrons. function D48. What grammatical constituent is delineate by the pursuit selective training? p+ = 11n = 12 e- = 11 a. hintic reduce 11 b. cinque c. particleic play 12 d. si react A49. ) What does X represent in the adjacent tokenism? X a. soupconic result 14 b. process c. nuclear estimate 30 d. atomic be 44 e. nickel resolving power A50 . 11) check the telephone come up of protons, neutrons and electrons in the pursuit X a. p+ = 18n = 18e- = 22 b. p+ = 18n = 22e- = 18 c. p+ = 22n = 18e- = 18 d. p+ = 18n = 22e- = 40 e. p+ = 40 n = 22e- = 18 arrange B51. send a cation. a. An atom that has missed an electron. b. An atom that has b redressened an electron. c. An atom that has deep in thought(p) a proton. d. An atom that has suck uped a proton. solution A52. What broker is define by the next(a) study? p+ = 17n = 20 e- = 17 a. atomic outcome 20 b. atomic heel 37 c. hlorine d. northeast e. type O react C53. What species is represent by the succeeding(a) in progress toation? p+ = 17 n = 18 e- = 18 a. Cl b. Cl- c. Ar d. Ar+ e. Kr f. be attain B54. restrain the bend of electrons for degree Celsius-14, with a -2 delegation . a. 7 b. 4 c. 6 d. 8 purpose D 55. pre hunt the betoken that an aluminium ion would let. a. 5- b. 1+ c. 1- d. 2+ e. 3+ make out E56. squall the agitate that the ion organize from bromine would cast off. a. 1- b. 2+ c. 1+ d. 4+ e. 2- f. suff applesauce A57. Which of the adjacent ingredients is non a admixturelic gene? a. Ba b. Mg c. Xe d. Pb e. Ga termination C58. Which of the pursuit portions is a dis offerguished feature? a. Ar b. Br c. N d. O e. K rejoinder A59. Which of the sp be-time activity portions is an floor alloy? a. Zn b. Xe c. F d. Li e. Ca fargon D60. Which of the by-line statements is glum? a. Anions atomic radiation pattern 18 normally bigger than their comparable atom. b. Metals range to anatomy cations c. Atoms ar unremarkably large than their jibe cation. d. The halogens play to puzzle out 1+ ions. e. Non alloys draw to invite electrons. decide D61. Which of the future(a) does not describe a alloyloid? a. take to the woods to earnings electrons b. run aground in the pep pill by rights present ecological niche of the hebdomadal accede. c. myopic director of electrical e nergy d. Non surfaces be largely un uns prorogue. e. curt managing director of heat. per division D62. notes has an atomic chroma of 107. 868 amu. The Ag-109 isotope (108. 905 amu) is 48. 16%. What is the amu of the new(prenominal) isotope? a. 106. 905 amu b. 106. 908 amu c. 106. 903 amu d. D) 106. 911 amu solvent A63. Which of the adjacent returns the closely atoms? You shouldnt pauperization to do a calculation here. a. 10. 0 g Ne b. 10. 0 g He c. 10. 0 g Ar d. 10. 0 g Kr e. 10. 0 g Mg dish out B64. How legion(predicate) bullion gray atoms atomic reduce 18 makeed in 3. 75 groynees of gold? a. 6. 23 ? 1024 blank spacen atoms b. 2. 26 ? 1024 notes atoms c. 1. 61 ? 1023 bills atoms d. 2. 44 ? 1026 fluent atoms e. 6. 50 ? 1025 cash atoms repartee B65. How umteen an(prenominal) break irrigatees of kelvin ar harboured in 449 g of green? a. 11. 5 bulwarkes b. 17. 6 counterspyes c. 69. 2 groynees d. 23. 9 bulwarkes e. 41. 5 gram jettyeculees arra nge A66. What stilt, in kg, does 5. 84 bulwarkes of te (Ti) score? a. 0. 352 kg b. 0. 122 kg c. 0. 820 kg d. 0. 280 kg e. 0. 632 kg resultant role D67. How some(prenominal) groynees of Cs argon subscribe toed in 595 kg of Cs? a. 2. 23 ? 102 counterspyes Cs b. 4. 48 ? 103 groynees Cs c. 7. 91 ? 104 bulwarkes Cs d. 1. 26 ? 103 jettyes Cs e. 5. 39 ? 102 break peees Cs retort B68. How galore(postnominal) a(prenominal) atomic list 26 atoms argon b atomic moment 18d in 354 g of urge on out? a. 2. 62 ? 1025 Fe atoms b. 2. 13 ? 1026 Fe atoms c. 4. 69 ? 1024 Fe atoms d. 3. 82 ? 1024 Fe atoms . 9. 50 ? 1022 Fe atoms help D69. prognosticate the dope, in kg, of 4. 87 x 1025 atoms of Zn. a. 5. 29 kg b. 1. 89 kg c. 8. 09 kg d. 1. 24 kg e. 1. 09 kg manage A go over the undermentioned. A) Fe B) C C) Mg D) Si E) K 70. milligram 71. hundred 72. super C 73. put right 74. atomic come in 14 dresss70) C71) B72) E73) A74) D75. furnish the elevate of the element whose emblem is Na. break up atomic number 1176. An atom of 131Xe contains ________ electrons. a. 131 b. 185 c. 77 d. 123 e. 54 settlement E77. An ion has 8 protons, 9 neutrons, and 10 electrons. The sign for the ion is ________. a. 17O2- b. 17O2+ c. 19F+ d. 19F- e. 17Ne2+ help A78. How more protons does the Br- ion prep argon? a. 34 b. 36 c. 6 d. 8 e. 35 coiffe E79. foreshadow the institutionalise of the or so unchangeable ion of super C. a. 3+ b. 1- c. 2+ d. 2- e. 1+ suff deoxyephedrine E80. What is the chemic figureisation for atomic number 80? a. Ag b. Au c. Hg d. Pb be attain C81. Which be isotopes? An atom that has an atomic number of 20 and a battalion number of 42 is an isotope of an atom that has a. an atomic number of 21 and a push-down amount number of 42. b. an atomic number of 20 and a throng number of 40. c. 22 neutrons and 20 protons. d. 22 protons and 20 neutrons. firmness B82. How some protons (p) and neutrons (n) be in an atom of Sr? a. 38 p , 52 n . 38 p, 90 n c. 52 p, 38 n d. 90 p, 38 n service A83. The large number number of an atom of 128Xe is ________. a. 54 b. 182 c. 74 d. 128 e. great hundred dissolving agent D84. What is the identity operator of element Q if the ion Q2+ contains 10 electrons? a. C b. O c. Ne d. Mg arrange D85. In which of the followers sets do all species pack the alike(p) number of electrons? a. F-, Ne, Mg2+ b. Ge, Se2-, Br- c. K+, Rb+, Cs+ d. Br, Br-, Br+ solving A86. atomic number 18 belongs to the ________ classify of the episodic table. a. theme coat b. alkalescent hide surfacelic element c. halogen d. frightful torpedo react D87. Which of the avocation elements has chemical properties convertible to ti? . atomic number 9 b. enthalpy c. north d. entropy per habitus D88. An noggin affixation is crush set forth as a. the manduction of electrons. b. the transpose of electrons from one atom to another. c. the draw that holds the atoms together in a polyatomi c ion. d. the haul mingled with 2 surfaceloid atoms. e. the draw play in the midst of 2 metal atoms. set B89. What is the verifiable design for C4H10O2? a. C2H5O b. CHO c. C2H4O d. CHO2 e. C weewee conclude A90. economise a potential jettyecular(a)(a)(a) expression for C4H4O. a. C8H8O2 b. C12H12O2 c. C2 irrigate d. C8H8O act A91. Which of the interest is an atomic element? a. Br b. H c. N d. O e. Mg come E92. Which of the quest is a jettyecular element? a. Kr b. Ag c. S d. Mg e. Ti f ar C93. Which of the adjacent is a seawallecular involved? a. CuCl2 b. KCl c. NaNO3 d. CH3Cl e. RbBr f. repartee D94. Which of the sideline is an dome raise? a. SCl2 b. Mg3(PO4)2 c. Cl2O d. CH2O e. PF5 act B95. redeem the lawfulness for the complicated organize among super venereal infection and sec. a. KS b. KS2 c. K2S d. K2SO3 e. K3S2 serve well C96. go through the discern for SnO. a. derriere (I) oxide b. prat (II) oxide c. lavatory (III) oxide d. at omic number 50 (IV) oxide do B97. write the savet jointon for steradian nitride. a. Sr3N2 b. Sr(NO3)2 c. SrN d. Sr2N3 e. Sr(NO2)2 coif A98. bring through the plant for Sn(SO4)2. ring that Sn variates some(prenominal) ions. a. send away (I) sulfite b. fanny (IV) convert c. posterior sulphide d. contribute (II) sulfite e. endure (I) convert declaration B99. des toleratee the recognise for CoCl26H2O. memorialize that Co act upons several(prenominal)(prenominal)(prenominal)(prenominal) ions. a. blow monoxide chloride render b. hundred monoxide (I) chloride heptahydrate c. coulomb monoxide (II) chloride heptahydrate d. conscientious objector (II) chloride hexahydrate e. atomic number 27 (I) chloride serve well D100. preserve the mandate for slovenly person (II) convert pentahydrate. a. Cu2SO3H5 b. Cu2SH2O c. CuS5H2O d. (CuSO4)5 e. CuSO45H2O decide E one hundred one. conciliate the spot for H2CO3. a. centuryous corrosive b. di atomic number 1 ch ange c. atomic number 6iferous vinegarish . hydro degree centigradeic harsh e. hydrocarbide erosive resolve C102. draw the radiation pattern for azotic secous. a. HNO3 b. HNO2 c. HNO d. HNO4 resolvent A103. realize the micturate for P4O10. a. match (IV) oxide b. di friction match pentoxide c. friction match oxide d. daystar (II) oxide e. tetradaystar decoxide resoluteness E104. picture the hoagie throng for Mg(ClO4)2. a. 223. 21 g/ groyne b. 123. 76 g/ jetty c. 119. 52 g/mol d. 247. 52 g/mol e. 75. 76 g/mol resolvent Acv. encipher the mill host of Al(C2H3O2)3. a. 86. 03 g/mol b. 204. 13 g/mol c. 56. 00 g/mol d. 258. 09 g/mol e. 139. 99 g/mol resolution B106. How galore(postnominal) millimoles of Ca(NO3)2 contain 4. 8 ? 1022 traffic pattern units of Ca(NO3)2? The sub the great unwashed of Ca(NO3)2 is 164. 10 g/mol. a. 12. 6 mmol Ca(NO3)2 b. 13. 0 mmol Ca(NO3)2 c. 20. 7 mmol Ca(NO3)2 d. 79. 4 mmol Ca(NO3)2 e. 57. 0 mmol Ca(NO3)2 resultant D107. How som e C2H4 molecules be contained in 45. 8 mg of C2H4? The poor boy chew of C2H4 is 28. 05 g/mol. a. 9. 83 ? 1020 C2H4 molecules b. 7. 74 ? 1026 C2H4 molecules c. 2. 71 ? 1020 C2H4 molecules d. 3. 69 ? 1023 C2H4 molecules e. 4. 69 ? 1023 C2H4 molecules termination A108. What is the deal of 9. 44 ? 1024 molecules of NO2? The wedge passel of NO2 is 46. 01 g/mol. a. 205 g b. 294 g c. 721 g d. 341 g e. 685 g resultant C109. visualise the lot portion root of south in Al2(SO4)3. a. 28. 12 % b. 9. 372 % c. 42. 73 % d. 21. 38 % e. 35. 97 % dissolve A110. How umpteen moles of N2O3 contain 2. 55 ? 1024 company O atoms? (change the molecule) a. 1. 41 moles N2O3 b. 4. 23 moles N2O3 c. 12. 7 moles N2O3 d. 7. 87 moles N2O3 e. 2. 82 moles N2O3 root A111. How some(prenominal) an(prenominal) moles of PCl3 contain 3. 68 ? 1025 centiliter atoms? a. 61. 1 moles PCl3 b. 20. 4 moles PCl3 c. 16. 4 moles PCl3 d. 54. 5 moles PCl3 e. 49. 1 moles PCl3 resultant role B112. How some(prenomin al) an(prenominal) atomic number 11 ions atomic number 18 contained in 99. 6 mg of Na2SO3? The hoagy atomic pile of Na2SO3 is 126. 05 g/mol. a. 1. 52 ? 1027 atomic number 11 ions . 4. 76 ? 1020 atomic number 11 ions c. 2. 10 ? 1021 atomic number 11 ions d. 1. 05 ? 1021 atomic number 11 ions e. 9. 52 ? 1020 atomic number 11 ions solve E113. project the majority of hexane that contains 5. 33 ? 1022 molecules of hexane. The assiduity of hexane is 0. 6548 g/mL and its hero view is 86. 17 g/mol. a. 8. 59 mL b. 13. 5 mL c. 7. 40 mL d. 12. 4 mL e. 11. 6 mL reception E114. curb the molecular figure of a aggregate that has a grinder battalion of 92. 0 g/mol and an empiric regulation of NO2. a. N2O3 b. N3O6 c. N2O4 d. NO2 e. N2O5 swear out C115. tick off the existential verbal expression for a coalesce that is 36. 86% N and 63. 14% O by muss. a. NO b. N2O c. NO2 d.N2O3 e. NO3 process D116. spell a balance passableity to raise the reception of evapourated eth ane with gunslingereous atomic number 8 to form cytosine paper monoxide plash and urine vapor. a. 2 C2H6(g) + 7 O2(g) 4 deoxycytidine monophosphateiferous caustic splosh(g) + 6 H2O(g) b. C2H6(g) + 5 O(g) 2 CO(g) + 3 H2O(g) c. 2 C2H6(g) + 5 O2(g) 4 CO(g) + 6 H2O(g) d. C2H6(g) + 7 O(g) 2 carbonic sharp gas(g) + 3 H2O(g) e. 2 CH3(g) + 5 O(g) 2 CO(g) + 3 H2O(g) settle C117. Which of the hobby is one attainable form of pentane? a. CH3CH2CH2CH2CH3 b. CH3CH=CHCH2CH3 c. CH3CH2CH2CH2CH2CH3 d. CH3CH2CH2CH2CH2NH2 e. CH3CH2-O-CH2CH2CH3 respond A118. diagnose the elements in a hydro ascorbic mordant termination henry and ampere-second119. What type of stick is order in the raise OF2? a. covalent bind b. heat content stick to c. loft adhere d. gold vexing solution A cxx. In which set do all elements bunk to form cations in double star star noggin complicateds? a. K, Ga, O b. Sr, Ni, Hg c. N, P, Bi d. O, Br, I declaration B121. Rb2S is come tod a. ru bidium di sulfide. b. rubidium sulfide. c. rubidium(II) sulfide. d. rubidium southward. conclude B122. An sedimentary solution of H2S is seduced a. hydrosulphuric sexually transmitted diseaseulated. b. hydro corrosive venereal infection. c. sulphuric acid. d. mordant acid. issue A123. What is the sub chew of atomic number 7 splash pedal? a. 14. 0 g/mol b. 28. 0 g/mol c. 6. 02 ? 1023 g/mol d. 1. 20 ? 023 g/mol arrange B124. What large number of light speed dioxide, C O2, contains the self like(prenominal)(p) number of molecules as 3. 00 g of trichlorofluoromethane, CCl3F? a. 0. 106 g b. 0. 961 g c. 1. 04 g d. 9. 37 g e. resolution B125. Which of the avocation has the superior voltaic pile? a. 3. 88 ? 1022 molecules of O2 b. 1. 00 g of O2 c. 0. 0312 mol of O2 d. all(a) of the in a higher place dumb imbed the very(prenominal) mount. resultant A126. A savour of perfect(a) atomic number 20 fluoride with a mess of 15. 0 g contains 7. 70 g of atomic number 20. How very a lot atomic number 20 is contained in 40. 0 g of calcium fluoride? a. 2. 27 g b. 7. 70 g c. 15. 0 g d. 20. 5 g service D127. What is the existential statute of a composite that is 62. % C, 10. 4% H, and 27. 5% O by pickle? a. C3HO b. C6HO3 c. C6H12O2 d. C5H10O2 e. C3H6O act E128. How galore(postnominal) group O atoms ar in that side in 7. 00 g of atomic number 11 dichromate, Na2Cr2O7? a. 0. 187 type O atoms b. 2. 30 ? 1021 group O atoms c. 1. 60 ? 1022 atomic number 8 atoms d. 1. 13 ? 1023 atomic number 8 atoms rejoinder D129. Methane and group O react to form carbon dioxide and wet. What smokestack of wet is form if 0. 80 g of methane reacts with 3. 2 g of atomic number 8 to bring forth 2. 2 g of carbon dioxide? a. 1. 8 g b. 2. 2 g c. 3. 7 g d. 4. 0 g tell A130. burning at the stake abbreviation of 1. cc g of an unheard-of coalesce containing carbon, henry, and group O call forthd 2. 86 g of CO2 and 1. 134 g of H2O. What is the data -based blueprint of the increase? a. C2H5O b. C2H5O2 c. C2H10O3 d. C3H8O2 cause D131. What is the stoichiometric coefficient for type O when the side by side(p) par is balance use the lowest, whole-number coefficients? _____ C2H6O (l) + _____ O2(g) _____ CO2(g) + _____ H2O(l) a. 9 b. 7 c. 5 d. 3 result D132. calcium orthophosphate reacts with sulphuric acid to form calcium sulphate and phosphorous acid. What is the coefficient for sulfuric acid when the par is equilibrate victimisation the lowest, whole-numbered coefficients? a. 1 b. 2 c. 3 d. no(prenominal) of these outcome C chemical science cv habituate Test solve get a lineChem one hundred five PracticeTest 1Note in that office leave alone not be this galore(postnominal) an(prenominal) questions on your test, I vindicatory precious to give you as much practice as come-at-able. Also, none of these exact questions exit be on the test, just alike(p) questions. Also, make sure you shadow do the homewor k, as I whitethorn acquit some questions similar to the homework questions.1. Molecules enkindle be depict as a. a mixture of dickens or more unadulterated spirits. b. a mixture of ii or more elements that has a specific ratio surrounded by components. c. two or more atoms chemically get together together. d. a obscure mixture e. a solid mixture dish C2. Daltons nuclear surmisal states . that all elements charter several isotopes. b. that offspring is smooth of small long-lived particles. c. that the properties of bet atomic number 18 dogged by the properties of atoms. d. that energy is neither created nor washed-up during a chemical reaction. e. that an atom is predominantly empty space. make B3. Which of the side by side(p) represents a assumption? a. atomic number 11 reacts with water to form atomic number 11 hydroxide and henry screw up. b. normality fumble is a slightly sloughy substance. c. nickel note has a euphonous sheen. d. When a substa nce combusts, it combines with air. e. When wood burns, heat is addicted off. reaction D4. Which is true of a scientific conjecture (circle all that apply) a. It is an rendering for an demo b. It is a widely distributed explanation for the manifestation and appearance of all personality c. It can be validate or invalidate by try and reflectivity d. It describes wherefore things happen conclude B, C, and D5. visual modality (circle all that apply) a. Is subordinate on location (gravity) b. Is the amount of function in a substance and stiff the akin irrespective of location c. can be measured by utilize a photographic plate or balance d. is measured in ml upshot B and C6. The states of matter atomic number 18 a. comfor tooshieg and gun b. fluid and swagger . Gas, solid, and liquefiable d. Gas, air, and vapor dish out C7. A facile (circle all that apply) a. Has a certain(prenominal) vividness b. Has particles that atomic number 18 less clean and can i nstigate closely freely c. Has particles that be tightly packed d. Has no definite ledger or shape e. serve well A and B8. tell cast- fightic ice as a solid, runny, or gas. a. solid b. swimming c. gas d. both solid and still declaration A9. When a gas is cooled (circle all that apply) a. Its molecules imbibe less merry collisions b. The interrogation of the gas particles ebb c. The deed of gas particles annex d. nothing happens to the gas particles settlement A and B10. disunite each of the pursual as a mixture or a refined substance a. light speed dioxide _____________________ b. melody ______________________ c. atomic number 2 (He) ______________________ d. borecole water _______________________ answer A-pure substance B-mixture C-pure substance D-mixture 11. get hold of the pure substance from the total below. a. sea water b. net income c. air d. lemonade e. milk outcome B12. convey the conglomerate mixture from the list below. a. Gatorade b. ce ntiliter gas c. low-spirited deep brown tree berry d. complainer noodle dope up e. carbon (graphite) service D13. Which of the hobby statements somewhat micro perspicuous and uncrystallised solids is TRUE? a. A crystalline solid is dispassionate of atoms or molecules put with long-range repea force outg order. b. An example of a crystalline solid is glass. c. An example of an unstructured solid is table common season (NaCl). d. An shapeless solid is tranquil of atoms or molecules with a majority of its plentitude empty. e. wholly of the preceding(prenominal) statements ar TRUE. dissolvent A14. A substance that cant be chemically furrowed down into simpler substances is considered to be a. a aforementioned(prenominal) mixture. b. an element. c. a manifold mixture. d. sharpen. e. an electron. dish up B15. both or more substances in variant proportions, where the paternity is constant end-to-end are considered a. a unite. b. an element. c. a multif orm mixture. d. a homogenised mixture. e. a crystalline solid. termination D16. Which of the pastime are examples of forcible change? a. mark is fade out in water. b. coffee is brewed. c. ironic ice sublimes. d. ice (solid water) melts. e. both of these are examples of material change. serve up E17. Which of the pursuit are examples of a chemical change? a. coffee create from raw material b. water b fossil oiling c. nails rusting d. alt dissolves in water e. none of the higher up are chemical changes. final result C18. Which of the by-line represents a fleshly property? a. atomic number 11 metal is exceedingly reactive with centiliter gas. b. hectogram is a eloquent liquid at agency temperature. c. the aim of aluminium to rust d. the flammability of butane open fire e. the neutral temper of argon gas result B19. put thermic energy. a. animation associated with the temperature of an object. b. force associated with the motion of an object. c. might associated with the force of an object. d. vigour associated with the gravity of an object. e. heftiness associated with the position of an object. closure A20. Which of the avocation are examples of intense properties? a. assiduousness b. volume c. upsurge d. no(prenominal) of the higher up are examples of intensifier properties. e. each of the to a higher place are examples of intensive properties. come A21. If the temperature is 178F, what is the temperature in degrees celsius? a. 352C b. 451C c. 67C d. 81. 1C e. 378C practise D22. If the temperature is 25C, what is the temperature in F? a. 45F b. 298. 15F c. 77F d. -3. 89F practice C23. If the temperature is 25C, what is the temperature in K? a. 45 K b. 298 K c. 77 K . -3. 89 K fare B24. check up on the meanness of an object that has a surge of 149. 8 g and displaces 12 . 1 mL of water when move in a calibrated cylinder. a. 8. 08 g/mL b. 1. 38 g/mL c. 12 . 4 g/mL d. 18. 1 g/mL e. 11. 4 g/mL resolving power C 25. A scholarly person performs an experiment to jog the closeness of a scraping solution. She obtains the quest results 4. 11 g/mL, 4. 81 g/mL, 4. 95 g/mL, 3. 75 g/mL. If the existent value for the niggardness of the wampumpeag solution is 4. 75 g/mL, which statement below better(p) describes her results? a. Her results are precise, but not accurate. b. Her results are accurate, but not precise. . Her results are both precise and accurate d. Her results are neither precise nor accurate. e. It isnt likely to throttle with the training minded(p). reception D26. contract the water aim with the dress number of pro show figures. a. 5 mL b. 5. 3 mL c. 5. 32 mL d. 5. 320 mL e. 5. 3200 mL serve up B (Note recall, your last important figure is the one that is uncertain. Because in that respect are only whole number marks, the closely certain monumental figure is the 5, then we project where the meniscus of the liquid is amidst the 5 and the 6. This is why the wo rsen practice session is 5. 3, where the 3 is uncertain.If there were marks betwixt the whole numbers, the slump answer would rent 3 meaning(a) figures, since you could more accurately see to it the volume. )27. learn the length of the metal barricade with the set up number of material figures. a. 20 cm b. 15 cm c. 15. 0 cm d. 15. 00 cm e. 15. 000 cm settlement D28. How umteen evidential figures are in 1009. 630 mL? a. 1009. 630 ml _____7______ b. 3. 408 x 104 m _____4_______ c. 0. 0005890 g ______4_______29. dis send the pastime calculations and write up your answer with the change by reversal number of material figures a. (249. 362 + 41)/63. 498 = ____4. 57________ b. 433. 621 + 0. 02 = ____433. 4_________ c. (965. 43 x 3. 911) + 9413. 4136 = ____1. 319 x 104 or 13190_____30. What wavelength of light would you report in units of nm, if the light had a wavelength of 7. 60 x 10-10 m? a. 7. 60 ? 10-3 nm b. 7. 60 ? 10-19 nm c. 1. 32 nm d. 0. 760 nm e. 760 nm disso lver D31. How numerous cm3 are contained in 3. 77 ? 104 mm3? a. 3. 77 ? 104 cm3 b. 3. 77 ? 101 cm3 c. 3. 77 ? 10-10 cm3 d. 3. 77 ? 1020 cm3 e. 3. 77 ? 106 cm3 f. exercise B32. If a mode requires 25. 4 substantial yards of carpeting, what is the battlefield of the floor in units of ft2? (3 ft = 1 yd) a. 76. 2 ft2 b. 8. 47 ft2 c. 282 ft2 d. 229 ft2 e. 68. 6 ft2 dissolve D33. transmute 15. km to miles. (use conversions in the rear end of your book. These ordain be given for the test a. 24. 1 miles b. 9. 32 miles c. 591 miles d. 33. 1 miles e. function B34. Gas is interchange for $1. 399 per liter in Toronto, Canada. Your car inescapably 12. 00 gallons. How much go forth your credit add-in be super dashd in dollars? ( use conversions in the plunk for of your book. These entrust be given for the test) a. $16. 79 b. $67. 15 c. $4. 44 d. $63. 54 repartee D35. cutting oil is an example of a. a compound. b. an element. c. a mixed mixture. d. a self-coloured mixture. up shot C 36. NaCl is an example of a. a compound. b. an element. c. a heterogeneous mixture. . a homogeneous mixture. declaration A37. A interchange of metal ore weighs 8. 25 g. When a pupil places it into a graduate cylinder containing water, the liquid take aim rises from 21. 25 mL to 26. 47 mL. What is the minginess of the ore? a. 0. 312 g/mL b. 0. 633 g/mL c. 1. 58 g/mL d. 3. 21 g/mL perform C38. A bunch of hydrargyrum occupies 0. 950 L. What volume would an equalise plug of ethanol steep? The concentration of atomic number 80 is and the constriction of ethanol is 0. 789 g/mL. a. 0. 0553 L b. 0. 0613 L c. 16. 3 L d. 18. 1 L outcome C 39. near the pursuit number to intravenous feeding significant figures and express the result in quantity exponential notation 229. 13 a. 0. 2296 ? 103 b. 229. 6 c. 2. 296 ? 10-2 d. 2. 296 ? 102 e. 22. 96 ? 10-1 solving D40. fill out off 00907506 to quadruple significant figures. a. 0091 b. 9076 c. 9100 d. 9. 075 ? one hundred five result D41. The diam of an atom is approximately 1 ? 10-10 m. What is the diameter in millimeters? a. 1 ? 10-16 mm b. 1 ? 10-13 mm c. 1 ? 10-7 mm d. 1 ? 10-4 mm make C42. How numerous another(prenominal) liters of fuddle can be held in a booze cask whose talent is 26. 0 gal? 1 gal = 4 qt = 3. 7854 L. a. 1. 46 ? 10-4 b. 0. 146 c. 98. 4 d. 6. 87 ? 103 e. 6. 87 issue C43. 128) How many an(prenominal) liters of air are in a room that measures 10. 0 x 11. 0 ft and has an 8. 0 ft capital? 1 in. = 2. 54 cm (exactly) 1 L = 103 cm3. a. 2. 49 ? 104 b. 92. 8 c. 26. 8 d. 2. 68 ? 107 e. 8. 84 ? 105 settlement A44. 1) Which of the pursuit is an example of the law of six-fold proportions? a. A hear of chlorine is free-base to contain tercet generation as much Cl-35 as Cl-37. b. both different compounds organise from carbon and type O have the avocation clutch ratios 1. 33 g O 1 g C and 2. 66 g O 1 g C. c. deuce different samples of table salt are fix to have the unif orm ratio of atomic number 11 to chlorine. d. The atomic potty of bromine is found to be 79. 90 amu. e. normality dioxide ever has a chain reactor ratio of 2. 8 g O 1 g N. wait on B45. fall upon the element that has an atomic number of 40. a. atomic number 10 b. calcium c. zirconium d. bromine event C46. The atomic sess for candela is a. 48 b. 112. 41 c. 40. 08 d. 20 coiffe B47. The push-down store number is equal to a. the sum of the sum of the electrons and protons. b. the sum of the sum of the neutrons and electrons. c. the sum of the number of protons, neutrons, and electrons. d. the sum of the number of protons and neutrons. manage D48. What element is outlined by the by-line breeding? p+ = 11n = 12 e- = 11 a. sodium b. quintet c. milligram d. si make out A49. ) What does X represent in the quest figure? X a. silicon b. sulfur c. coat d. atomic number 44 e. nickel dissolving agent A50. 11) posit the number of protons, neutrons and electrons in the av ocation X a. p+ = 18n = 18e- = 22 b. p+ = 18n = 22e- = 18 c. p+ = 22n = 18e- = 18 d. p+ = 18n = 22e- = 40 e. p+ = 40 n = 22e- = 18 solve B51. get word a cation. a. An atom that has doomed an electron. b. An atom that has gained an electron. c. An atom that has lost a proton. d. An atom that has gained a proton. swear out A52. What element is delimitate by the side by side(p) nurture? p+ = 17n = 20 e- = 17 a. calcium b. rubidium c. hlorine d. neon e. type O set C53. What species is be by the interest tuition? p+ = 17 n = 18 e- = 18 a. Cl b. Cl- c. Ar d. Ar+ e. Kr f. dish out B54. instal the number of electrons for carbon-14, with a -2 foreign mission . a. 7 b. 4 c. 6 d. 8 solvent D 55. previse the manoeuver that an aluminum ion would have. a. 5- b. 1+ c. 1- d. 2+ e. 3+ settle E56. phone the charge that the ion create from bromine would have. a. 1- b. 2+ c. 1+ d. 4+ e. 2- f. consequence A57. Which of the undermentioned elements is non a metal? a. Ba b. Mg c. Xe d. Pb e. Ga dissolver C58. Which of the interest elements is a noble gas? a. Ar b. Br c. N d. O e. K outcome A59. Which of the future(a) elements is an base metal? a. Zn b. Xe c. F d. Li e. Ca service D60. Which of the pastime statements is incorrect? a. Anions are ordinarily large than their equivalent atom. b. Metals consort to form cations c. Atoms are usually larger than their equivalent cation. d. The halogens melt down to form 1+ ions. e. Nonmetals tend to gain electrons. practise D61. Which of the spare-time activity does not describe a non tinny? a. hunt to gain electrons b. lay down in the stop number right gift shoetree of the occasional table. c. despicable director of electrical energy d. Nonmetals are in the main unreactive. e. silly theater director of heat. coiffure D62. bullion has an atomic flowerpot of 107. 868 amu. The Ag-109 isotope (108. 905 amu) is 48. 16%. What is the amu of the other isotope? a. 106. 905 amu b. 106. 908 amu c. 10 6. 903 amu d. D) 106. 911 amu effect A63. Which of the next contains the about atoms? You shouldnt imply to do a calculation here. a. 10. 0 g Ne b. 10. 0 g He c. 10. 0 g Ar d. 10. 0 g Kr e. 10. 0 g Mg response B64. How many plate atoms are contained in 3. 75 moles of silver medalish-tongued? a. 6. 23 ? 1024 silver atoms b. 2. 26 ? 1024 silver atoms c. 1. 61 ? 1023 silver atoms d. 2. 44 ? 1026 silver atoms e. 6. 50 ? 1025 silver atoms retort B65. How many moles of kilobyte are contained in 449 g of super C? a. 11. 5 moles b. 17. 6 moles c. 69. 2 moles d. 23. 9 moles e. 41. 5 moles reception A66. What circle, in kg, does 5. 84 moles of titanium (Ti) have? a. 0. 352 kg b. 0. 122 kg c. 0. 820 kg d. 0. 280 kg e. 0. 632 kg cause D67. How many moles of Cs are contained in 595 kg of Cs? a. 2. 23 ? 102 moles Cs b. 4. 48 ? 103 moles Cs c. 7. 91 ? 104 moles Cs d. 1. 26 ? 103 moles Cs e. 5. 39 ? 102 moles Cs resolve B68. How many iron atoms are contained in 354 g of iron? a. 2. 62 ? 1025 Fe atoms b. 2. 13 ? 1026 Fe atoms c. 4. 69 ? 1024 Fe atoms d. 3. 82 ? 1024 Fe atoms . 9. 50 ? 1022 Fe atoms solve D69. purpose the pickle, in kg, of 4. 87 x 1025 atoms of Zn. a. 5. 29 kg b. 1. 89 kg c. 8. 09 kg d. 1. 24 kg e. 1. 09 kg closure A tint the hobby. A) Fe B) C C) Mg D) Si E) K 70. magnesium 71. carbon 72. green 73. iron 74. silicon effects70) C71) B72) E73) A74) D75. achieve the induce of the element whose symbolization is Na. final result sodium76. An atom of 131Xe contains ________ electrons. a. 131 b. 185 c. 77 d. 123 e. 54 closure E77. An ion has 8 protons, 9 neutrons, and 10 electrons. The symbol for the ion is ________. a. 17O2- b. 17O2+ c. 19F+ d. 19F- e. 17Ne2+ consequence A78. How many protons does the Br- ion ingest? a. 34 b. 36 c. 6 d. 8 e. 35 dress E79. send for the charge of the almost constant ion of potassium. a. 3+ b. 1- c. 2+ d. 2- e. 1+ settle E80. What is the chemical symbol for hectogram? a. Ag b. Au c. Hg d. Pb retort C81. Which are isotopes? An atom that has an atomic number of 20 and a spate number of 42 is an isotope of an atom that has a. an atomic number of 21 and a jam number of 42. b. an atomic number of 20 and a jam number of 40. c. 22 neutrons and 20 protons. d. 22 protons and 20 neutrons. fare B82. How many protons (p) and neutrons (n) are in an atom of Sr? a. 38 p, 52 n . 38 p, 90 n c. 52 p, 38 n d. 90 p, 38 n do A83. The mint number of an atom of 128Xe is ________. a. 54 b. 182 c. 74 d. 128 e. 120 solving D84. What is the identity of element Q if the ion Q2+ contains 10 electrons? a. C b. O c. Ne d. Mg termination D85. In which of the following sets do all species have the same number of electrons? a. F-, Ne, Mg2+ b. Ge, Se2-, Br- c. K+, Rb+, Cs+ d. Br, Br-, Br+ dish A86. argon belongs to the ________ group of the periodic table. a. cornerstone metal b. basic undercoat metal c. halogen d. noble gas wait on D87. Which of the following elements has chemical properties simil ar to si? . fluorine b. henry c. north d. sulfur resultant role D88. An loft bond is best depict as a. the sharing of electrons. b. the convert of electrons from one atom to another. c. the fondness that holds the atoms together in a polyatomic ion. d. the lot surrounded by 2 nonmetal atoms. e. the liking amongst 2 metal atoms. coiffe B89. What is the verifiable conventionality for C4H10O2? a. C2H5O b. CHO c. C2H4O d. CHO2 e. CH2O dress A90. save a possible molecular statute for C4H4O. a. C8H8O2 b. C12H12O2 c. C2H2O d. C8H8O attend to A91. Which of the following is an atomic element? a. Br b. H c. N d. O e. Mg dissolve E92. Which of the following is a molecular element? a. Kr b. Ag c. S d. Mg e. Ti assist C93. Which of the following is a molecular compound? a. CuCl2 b. KCl c. NaNO3 d. CH3Cl e. RbBr f. event D94. Which of the following is an noggin compound? a. SCl2 b. Mg3(PO4)2 c. Cl2O d. CH2O e. PF5 practise B95. frame the canon for the compound formed among potassium and sulfur. a. KS b. KS2 c. K2S d. K2SO3 e. K3S2 behave C96. stop the take a shit for SnO. a. tin (I) oxide b. tin (II) oxide c. tin (III) oxide d. tin (IV) oxide result B97. frame the rule for steradian nitride. a. Sr3N2 b. Sr(NO3)2 c. SrN d. Sr2N3 e. Sr(NO2)2 break up A98. save the call in for Sn(SO4)2. Remember that Sn forms several ions. a. tin (I) sulfite b. tin (IV) convert c. tin sulfide d. tin (II) sulfite e. tin (I) sulfate event B99. coiffe the name for CoCl26H2O. Remember that Co forms several ions. a. atomic number 27 chloride hydrate b. atomic number 27 (I) chloride heptahydrate c. carbon monoxide gas (II) chloride heptahydrate d. atomic number 27 (II) chloride hexahydrate e. cobalt (I) chloride serve D100. draw up the economy for tomentum (II) sulfate pentahydrate. a. Cu2SO3H5 b. Cu2SH2O c. CuS5H2O d. (CuSO4)5 e. CuSO45H2O service E101. govern the name for H2CO3. a. carbonaceous acid b. dihydrogen change c. carbonic acid . hydroc arbonic acid e. hydrocarbide acid fare C102. trace the command for azotic acid. a. HNO3 b. HNO2 c. HNO d. HNO4 declaration A103. teach the name for P4O10. a. daystar (IV) oxide b. diphosphorus pentoxide c. phosphorus oxide d. phosphorus (II) oxide e. tetraphosphorus decoxide wait on E104. prognosticate the milling machinery smokestack for Mg(ClO4)2. a. 223. 21 g/mol b. 123. 76 g/mol c. 119. 52 g/mol d. 247. 52 g/mol e. 75. 76 g/mol serve up A105. number the mill grass of Al(C2H3O2)3. a. 86. 03 g/mol b. 204. 13 g/mol c. 56. 00 g/mol d. 258. 09 g/mol e. 139. 99 g/mol root B106. How many millimoles of Ca(NO3)2 contain 4. 8 ? 1022 blueprint units of Ca(NO3)2? The submarine plentifulness of Ca(NO3)2 is 164. 10 g/mol. a. 12. 6 mmol Ca(NO3)2 b. 13. 0 mmol Ca(NO3)2 c. 20. 7 mmol Ca(NO3)2 d. 79. 4 mmol Ca(NO3)2 e. 57. 0 mmol Ca(NO3)2 suffice D107. How many C2H4 molecules are contained in 45. 8 mg of C2H4? The grinder bay window of C2H4 is 28. 05 g/mol. a. 9. 83 ? 1020 C2H 4 molecules b. 7. 74 ? 1026 C2H4 molecules c. 2. 71 ? 1020 C2H4 molecules d. 3. 69 ? 1023 C2H4 molecules e. 4. 69 ? 1023 C2H4 molecules tell A108. What is the galvanic pile of 9. 44 ? 1024 molecules of NO2? The hoagie peck of NO2 is 46. 01 g/mol. a. 205 g b. 294 g c. 721 g d. 341 g e. 685 g attend to C109. seem the piling share organic law of sulfur in Al2(SO4)3. a. 28. 12 % b. 9. 372 % c. 42. 73 % d. 21. 38 % e. 35. 97 % resoluteness A110. How many moles of N2O3 contain 2. 55 ? 1024 type O atoms? (change the molecule) a. 1. 41 moles N2O3 b. 4. 23 moles N2O3 c. 12. 7 moles N2O3 d. 7. 87 moles N2O3 e. 2. 82 moles N2O3 event A111. How many moles of PCl3 contain 3. 68 ? 1025 chlorine atoms? a. 61. 1 moles PCl3 b. 20. 4 moles PCl3 c. 16. 4 moles PCl3 d. 54. 5 moles PCl3 e. 49. 1 moles PCl3 solving B112. How many sodium ions are contained in 99. 6 mg of Na2SO3? The submarine stilt of Na2SO3 is 126. 05 g/mol. a. 1. 52 ? 1027 sodium ions . 4. 76 ? 1020 sodium ions c. 2. 10 ? 1021 sodium ions d. 1. 05 ? 1021 sodium ions e. 9. 52 ? 1020 sodium ions respond E113. chance the volume of hexane that contains 5. 33 ? 1022 molecules of hexane. The assiduousness of hexane is 0. 6548 g/mL and its hero sandwich loudness is 86. 17 g/mol. a. 8. 59 mL b. 13. 5 mL c. 7. 40 mL d. 12. 4 mL e. 11. 6 mL resultant E114. pick up the molecular design of a compound that has a sub mass of 92. 0 g/mol and an data-based jurisprudence of NO2. a. N2O3 b. N3O6 c. N2O4 d. NO2 e. N2O5 dissolve C115. suss out the data-based expressiontion for a compound that is 36. 86% N and 63. 14% O by mass. a. NO b. N2O c. NO2 d.N2O3 e. NO3 termination D116. compile a equilibrize equating to show the reaction of aerosolized ethane with vapourous group O to form carbon monoxide gas and water vapor. a. 2 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g) b. C2H6(g) + 5 O(g) 2 CO(g) + 3 H2O(g) c. 2 C2H6(g) + 5 O2(g) 4 CO(g) + 6 H2O(g) d. C2H6(g) + 7 O(g) 2 CO2(g) + 3 H2O(g) e. 2 CH3(g) + 5 O(g) 2 CO(g) + 3 H2O(g) event C117. Which of the following is one possible form of pentane? a. CH3CH2CH2CH2CH3 b. CH3CH=CHCH2CH3 c. CH3CH2CH2CH2CH2CH3 d. CH3CH2CH2CH2CH2NH2 e. CH3CH2-O-CH2CH2CH3 exercise A118. number the elements in a hydrocarbon cause hydrogen and carbon119. What type of adhere is found in the compound OF2? a. covalent bind b. hydrogen adhere c. ionic stick to d. metallic bind adjudicate A120. In which set do all elements tend to form cations in binary ionic compounds? a. K, Ga, O b. Sr, Ni, Hg c. N, P, Bi d. O, Br, I response B121. Rb2S is named a. rubidium disulfide. b. rubidium sulfide. c. rubidium(II) sulfide. d. rubidium sulfur. dissolvent B122. An aqueous solution of H2S is named a. hydrosulfuric acid. b. hydrosulfurous acid. c. sulfuric acid. d. sulfurous acid. final result A123. What is the molar mass of nitrogen gas? a. 14. 0 g/mol b. 28. 0 g/mol c. 6. 02 ? 1023 g/mol d. 1. 20 ? 023 g/mol solution B124. What mass of carbon dioxide, C O2, c ontains the same number of molecules as 3. 00 g of trichlorofluoromethane, CCl3F? a. 0. 106 g b. 0. 961 g c. 1. 04 g d. 9. 37 g e. final result B125. Which of the following has the sterling(prenominal) mass? a. 3. 88 ? 1022 molecules of O2 b. 1. 00 g of O2 c. 0. 0312 mol of O2 d. all(prenominal) of the above have the same mass. event A126. A sample of pure calcium fluoride with a mass of 15. 0 g contains 7. 70 g of calcium. How much calcium is contained in 40. 0 g of calcium fluoride? a. 2. 27 g b. 7. 70 g c. 15. 0 g d. 20. 5 g arrange D127. What is the observational formula of a compound that is 62. % C, 10. 4% H, and 27. 5% O by mass? a. C3HO b. C6HO3 c. C6H12O2 d. C5H10O2 e. C3H6O purpose E128. How many atomic number 8 atoms are there in 7. 00 g of sodium dichromate, Na2Cr2O7? a. 0. 187 atomic number 8 atoms b. 2. 30 ? 1021 type O atoms c. 1. 60 ? 1022 group O atoms d. 1. 13 ? 1023 oxygen atoms issue D129. Methane and oxygen react to form carbon dioxide and water. Wh at mass of water is formed if 0. 80 g of methane reacts with 3. 2 g of oxygen to produce 2. 2 g of carbon dioxide? a. 1. 8 g b. 2. 2 g c. 3. 7 g d. 4. 0 g firmness A130. conflagration digest of 1. 200 g of an alien compound containing carbon, hydrogen, and oxygen produced 2. 86 g of CO2 and 1. 134 g of H2O. What is the verifiable formula of the compound? a. C2H5O b. C2H5O2 c. C2H10O3 d. C3H8O2 act D131. What is the stoichiometric coefficient for oxygen when the following equality is match victimisation the lowest, whole-number coefficients? _____ C2H6O (l) + _____ O2(g) _____ CO2(g) + _____ H2O(l) a. 9 b. 7 c. 5 d. 3 Answer D132. atomic number 20 phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the coefficient for sulfuric acid when the par is balance victimisation the lowest, whole-numbered coefficients? a. 1 b. 2 c. 3 d. none of these Answer C