Chemistry The Molecular Nature of Matter and Change 3rd Canadian Edition By Martin Silberberg (Test Bank)

Chemistry Bank, Grade 10, Second semester, 2018
k k k k k k




1. Thekfollowingktablekgiveskthekmeltingkpointskofkvariouskhydrides:

Hydride Meltingkpointk(0C)
HI -50
NH3 -78
H2S -83
CH4 -184
Inkwhichkofkthesekhydrideskdoeskhydrogenkbondingkoccur?

a. HIkonly
b. NH3konlyk
c. HIkandkNH3konly
d. HI,kNH3kandkH2S

2. Referktoktheklistkofksubstanceskbelow:
HCl,kCl2,kH2O,kNH3,kN2,kHF
Selectkthektruekstatementkfromktheklistkbelow:

a. NH3kiskaknon-polarkmolecule
b. ThekmeltingkpointkofkNH3kwillkbekhigherkthankforkCl2k
c. Ion-dipolekforceskexistkbetweenkmoleculeskofkHF
d. AtkroomktemperaturekN2kiskusuallykakliquid

3. Thekrespectivekboilingkpointskforkfourkchemicalksubstanceskarekgivenkbelow:

Hydrogenksulphidek-
60‫ﹾ‬CkAmmoniak-
33‫ﹾ‬CkHydrogenkfluoridek2
0‫ﹾ‬CkWaterk100‫ﹾ‬C

a. Whichkonekofktheksubstanceskexhibitskthekstrongestkforceskofkattractionkbetweenkitskmoleculeskinkthekliquidkstate?

a. Hydrogenksulphide
b. Ammonia
c. Hydrogenkfluoride
d. Water

b. WhichkonekofktheseksubstanceskhaskstrongkLDF?

a. Hydrogenksulphide
b. Ammonia
c. Water
d. None

4. Waterkcankbekformedkfromkthekstoichiometrickreactionkofkhydrogenkwithkoxygenk:k2H2k(g)k +kO2k(g)k 2H2Ok(g)

Akcompletekreactionkofk5.0kgkofkO2kwithkexcesskhydrogenkproducesk gkofkH2O.

a. 5.6
b. 2.3kxk102
c. 2.8
d. 0.31
e. 11

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, Chemistry Bank, Grade 10, Second semester, 2018
k k k k k k




5. Underkappropriatekconditions,knitrogenkandkhydrogenkundergokakcombinationkreactionktokyieldkammonia:
kN2k(g)k+k3H2k(g)k→k 2NH3k(g),k Ak7.1-gksamplekofkN2krequiresk gkofkH2kforkcompletekreaction.

a. 0.76
b. 1.5
c. 0.51
d. 17.2
e. 1.2

6. GeF3HkiskformedkfromkGeH4kandkGeF4kinkthekcombinationkreaction:kGeH4k +k 3GeF4k →k4GeF3H
Ifkthekreactionkyieldkisk92.6%,khowkmanykmoleskofkGeF4karekneededktokproducek8.00kmolekofkGeF3H?

a. 6.48
b. 2.78
c. 5.56
d. 3.24
e. 2.16

7. Silverknitratekandkaluminumkchloridekreactkwithkeachkotherkbykexchangingkanions:
3AgNO3k +k AlCl3k →k Al(NO3)3k +k 3AgCl
WhatkmasskinkgramskofkAgClkiskproducedkwhenk4.22kgkofkAgNO3kreactkwithk7.73kgkofkAlCl3?

a. 3.56k
b. 17.6
c. 11.9
d. 4.22
e. 24

8. Ak3.82-gksamplekofkmagnesiumknitridekiskreactedkwithk7.73kgkofkwater,kaccordingktokthekfollowingkequationkMg3N2
+k 3H2Ok →k 2NH3k +k 3MgO
ThekyieldkofkMgOkisk3.60kg.kWhatkiskthekpercentkyieldkinkthekreaction?

a. 78.8k
b. 46.6
c. 94.5
d. 49.4
e. 99

9. Aluminumkchloridekandkbubbleskofkhydrogenkgaskarekproducedkwhenkmetallickaluminumkiskplacedkin
khydrochlorickacid.k Whatkiskthekbalancedkequationkforkthiskreaction?




a. Hk+kAlClk→kAlk+kHCl
b. 2Alk+k6HClk→k2AlCl3k+k3H2k
c. Alk+kHCl3k→kAlCl3k+kH
d. Alk+k2HClk→kAlCl2k+kH2
e. H2k+kAlCl3k→kAlk+k2HCl




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, Chemistry Bank, Grade 10, Second semester, 2018
k k k k k k




10. Whenkthekequation,kFek+kCl2k→kFeCl3,kiskbalanced,kwhatkiskthekcoefficientkforkCl2?

a. 1
b. 2
c. 3k
d. 4
e. 0.5

11. Chemicalkreactionsk…………….
a. occurkonlykinklivingkorganisms.
b. createkandkdestroykatoms.
c. onlykoccurkoutsideklivingkorganisms.
d. produceknewksubstances.
e. arekaccompaniedkwithkdecreasingkinkthekamountskofkproductskandkreactants.

12. WhichkofkthekfollowingkiskNOTkaktruekstatementkconcerningkwhatkhappenskinkallkchemicalkreactions?
a. Thekwayskinkwhichkatomskarekjoinedktogetherkarekchanged.
b. Newkatomskarekformedkaskproducts.k
c. Thekstartingkmaterialskareknamedkreactants.
d. Thekbondskofkthekreactantskarekbrokenkandknewkbondskofkthekproductskarekformed.
e. Inkakwordkequationkrepresentingkakchemicalkreaction,kthekreactantskarekwrittenkonkthekleftkandkthekproductskonkthekr
ight.

13. Chemicalkequationk……………….

a. describekchemicalkreactions.k
b. showkhowktokwritekchemicalkformulas.
c. givekdirectionskforknamingkchemicalkcompounds.
d. describekonlykbiologicalkchanges.

14. Chemicalkequationskdescribek………………..

a. nuclearkreactions
b. electrochemicalk processes
c. chemicalkreactions
d. biologicalkreactions
e. allkthekabove

15. Chemicalkequationskmustkbekbalancedktoksatisfykthek……………..

a. lawkofkdefinitekproportions
b. lawkofkmultiplekproportions
c. lawkofkconservationkofkmassk
d. principlekofkAvogadro

16. Inkeverykbalancedkchemicalkequation,keachksidekofkthekequationkhasktheksameknumberkofk…………….

a. atomsk
b. molecules
c. moles
d. coefficients
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, Chemistry Bank, Grade 10, Second semester, 2018
k k k k k k




17. Thekdoublekarrowksymbolkindicatesk…………….

a. thatkheatkmustkbekapplied
b. ankincompletekcombustionkreaction
c. thatkakgaskiskformedkbykthekreaction
d. thatkthekreactionkiskreversible

18. Thekreaction,k2Fek+k3Cl2k→k 2FeCl3,kiskankexamplekofkwhichktypekofkreaction?

a. REDOXk-kcombustionkreaction
b. REDOXk-kdisproportionationkreaction
c. REDOXk-kcombinationkreactionk
d. PrecipitationkReaction
e. Acid/BasekReaction

19. ThekequationkMg(s)k+k2HCl(aq)k→kMgCl2(aq)k+kH2(g)kiskankexamplekofkwhichktypekofkreaction?

a. REDOXkreactionk
b. Acid/Basekreaction
c. REDOXk-kdisproportionationkreaction
d. Precipitationkreaction

20. WhichkofkthekfollowingkiskNOTktruekconcerningkthekdecompositionkofkaksimplekbinarykcompound?

a. Thekproductskarekunpredictable.k
b. Thekproductskarekthekconstituentkelements.
c. Thekreactantkiskaksingleksubstance.
d. Thekreactantkcouldkbekankionickorkakmolecularkcompound.
e. Energykiskusuallykrequired.

21. WhichkofkthekfollowingkiskTRUEkregardingkakprecipitationkreaction?

a. Bothkproductskmustkbeksolublekinkwater
b. Atkleastkonekofkthekproductskwillkbekinsolublekinkwater
c. Spectatorkionskarekalwayskincludedkinkthekreaction
d. Electronskarekgainedkandklost
e. H+kionskarektransferredkfromkonekmoleculektokanother

22. Whatkiskthekdrivingkforcekinkthekfollowingkreaction?
Ni(NO3)2(aq)k+kK2S(aq)k→kNiSk+k2KNO3(aq)

a. Akgaskiskformed.
b. Akprecipitatekiskformed.k
c. Ionickcompoundskarekreactants.
d. Ionickcompoundskarekproducts.
e. Heatkiskrequired.




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