Test Bank - Chemistry: The Central Science, 14th Edition (Brown, 2018), Chapter 1-24 | All Chapters A+ SOLUTION LATEST

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K K K K K K K K K K K




Chemistry:KTheKCentralKScience,K14eK(Brown,KetKal.
)KChapterK2K Atoms,KMolecules,KandKIons

2.1 Multiple-ChoiceKQuestions

1) AKmoleculeKofKwaterKcontainsKhydrogenKandKoxygenKinKaK1:8KratioKbyKmass.KThisKisKaKstatem
entKof .
A) theKlawKofKmultipleKproportions
B) theKlawKofKconstantKcomposition
C) theKlawKofKconservationKofKmass
D) theKlawKofKconservationKofKenergy
E) noneKofKtheKabov
eKAnswer:KB
Diff:K2 Var:K1 PageKRef:KSec.K2.1
LO:K2.1K
GO:K G2

2) WhichKoneKofKtheKfollowingKisKnotKoneKofKtheKpostulatesKofKDalton'sKatomicKtheory?
A) AtomsKareKcomposedKofKprotons,Kneutrons,KandKelectrons.
B) AllKatomsKofKaKgivenKelementKareKidentical;KtheKatomsKofKdifferentKelementsKareKdifferentKa
ndKhaveKdifferentKproperties.
C) AtomsKofKanKelementKareKnotKchangedKintoKdifferentKtypesKofKatomsKbyKchemicalKreactio
ns:KatomsKareKneitherKcreatedKnorKdestroyedKinKchemicalKreactions.
D) CompoundsKareKformedKwhenKatomsKofKmoreKthanKoneKelementKcombine;KaKgivenKcompou
ndKalwaysKhasKtheKsameKrelativeKnumberKandKkindKofKatoms.
E) EachKelementKisKcomposedKofKextremelyKsmallKparticlesKcalledKatom
s.KAnswer:K A
Diff:K1 Var:K1 PageKRef:KSec.K2.1
LO:K2.1K
GO:K G2

3) ConsiderKtheKfollowingKselectedKpostulatesKofKDalton'sKatomicKtheory:
(i) EachKelementKisKcomposedKofKextremelyKsmallKparticlesKcalledKatoms.
(ii) AtomsKareKindivisible.
(iii) AtomsKofKaKgivenKelementKareKidentical.
(iv) AtomsKofKdifferentKelementsKareKdifferentKandKhaveKdifferentKproperties.

WhichKofKtheKpostulatesKis(are)KnoKlongerKconsideredKvalid?
A) (i)KandK(ii)
B) (ii)Konly
C) (ii)KandK(iii)
D) (iii)Konly
E) (iii)KandK(iv
)KAnswer:K C
Diff:K2 Var:K1 PageKRef:KSec.K2.1
LO:K2.1K
GO:K G2
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K K K K K K K K K K K




4) WhichKpairKofKsubstancesKcouldKbeKusedKtoKillustrateKtheKlawKofKmultipleKproportions?
A) SO2,KH2SO4
B) CO,KCO2
C) H2O,KO2
D) CH4,KC6H12O6
E) NaCl,KKC
lKAnswer:KB
Diff:K1 Var:K1 PageKRef:KSec.K2.1
LO:K2.1K
GO:K G2

5) WhichKstatementKbelowKcorrectlyKdescribesKtheKresponsesKofKalpha,Kbeta,KandKgammaKradiati
onKtoKanKelectricKfield?
A) BothKbetaKandKgammaKareKdeflectedKinKtheKsameKdirection,KwhileKalphaKshowsKnoKresponse.
B) BothKalphaKandKgammaKareKdeflectedKinKtheKsameKdirection,KwhileKbetaKshowsKnoKresponse.
C) BothKalphaKandKbetaKareKdeflectedKinKtheKsameKdirection,KwhileKgammaKshowsKnoKresponse.
D) AlphaKandKbetaKareKdeflectedKinKoppositeKdirections,KwhileKgammaKshowsKnoKresponse.
E) OnlyKalphaKisKdeflected,KwhileKbetaKandKgammaKshowKnoKrespons
e.KAnswer:K D
Diff:K2 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2

6) WhichKoneKofKtheKfollowingKisKnotKtrueKconcerningKcathodeKrays?
A) TheyKoriginateKfromKtheKnegativeKelectrode.
B) TheyKtravelKinKstraightKlinesKinKtheKabsenceKofKelectricKorKmagneticKfields.
C) TheyKimpartKaKnegativeKchargeKtoKmetalsKexposedKtoKthem.
D) TheyKareKmadeKupKofKelectrons.
E) TheKcharacteristicsKofKcathodeKraysKdependKonKtheKmaterialKfromKwhichKtheyKareKemitte
d.KAnswer:K E
Diff:K2 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2

7) TheKchargeKonKanKelectronKwasKdeterminedKinKthe .
A) cathodeKrayKtube,KbyKJ.KJ.KThomson
B) RutherfordKgoldKfoilKexperiment
C) MillikanKoilKdropKexperiment
D) DaltonKatomicKtheory
E) atomicKtheoryKofKmatte
rKAnswer:K C
Diff:K1 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2



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K K K K K K K K K K K




8) K -raysKconsistKofKfast-movingKelectrons.
A) Alpha
B) Beta
C) Gamma
D) X
E) noneKofKtheKabov
eKAnswer:KB
Diff:K1 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2

9) TheKgoldKfoilKexperimentKperformedKinKRutherford'sKlab .
A) confirmedKtheKplum-puddingKmodelKofKtheKatom
B) ledKtoKtheKdiscoveryKofKtheKatomicKnucleus
C) wasKtheKbasisKforKThomson'sKmodelKofKtheKatom
D) utilizedKtheKdeflectionKofKbetaKparticlesKbyKgoldKfoil
E) provedKtheKlawKofKmultipleKproportion
sKAnswer:KB
Diff:K1 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2

10) InKtheKRutherfordKnuclear-atomKmodel, .
A) theKheavyKsubatomicKparticles,KprotonsKandKneutrons,KresideKinKtheKnucleus
B) theKthreeKprincipalKsubatomicKparticlesK(protons,Kneutrons,KandKelectrons)KallKhaveKessential
lyKtheKsameKmass
C) theKlightKsubatomicKparticles,KprotonsKandKneutrons,KresideKinKtheKnucleus
D) massKisKspreadKessentiallyKuniformlyKthroughoutKtheKatom
E) theKthreeKprincipalKsubatomicKparticlesK(protons,Kneutrons,KandKelectrons)KallKhaveKessential
lyKtheKsameKmassKandKmassKisKspreadKessentiallyKuniformlyKthroughoutKtheKatom
Answer:K A
Diff:K1 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2

11) CathodeKraysKare .
A) neutrons
B) X-rays
C) electrons
D) protons
E) atomsK
Answer:K C
Diff:K1 Var:K1 PageKRef:KSec.K2.2
LO:K2.2K
GO:K G2



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