Chemistry The Central Science 18th Edition Brown Test Bank.pdf

DOWNLOAD THE Test Bank for Chemistry The Central Science 14th Edition Brown
k k k k k k k k k k k




Chemistry:kThekCentralkScience,k14ek(Brown,ketkal.)kChapte
rk2k Atoms,kMolecules,kandkIons

2.1 Multiple-ChoicekQuestions

1) Akmoleculekofkwaterkcontainskhydrogenkandkoxygenkinkak1:8kratiokbykmass.kThiskiskakstatementko
fk .
A) theklawkofkmultiplekproportions
B) theklawkofkconstantkcomposition
C) theklawkofkconservationkofkmass
D) theklawkofkconservationkofkenergy
E) nonekofkthekabovek
Answer:k B
Diff:k2 Var:k1 PagekRef:kSec.k2.1
LO:k 2.1k
GO:k G2

2) WhichkonekofkthekfollowingkisknotkonekofkthekpostulateskofkDalton'skatomicktheory?
A) Atomskarekcomposedkofkprotons,kneutrons,kandkelectrons.
B) Allkatomskofkakgivenkelementkarekidentical;kthekatomskofkdifferentkelementskarekdifferentkandkh
avekdifferentkproperties.
C) Atomskofkankelementkareknotkchangedkintokdifferentktypeskofkatomskbykchemicalkreactions:ka
tomskarekneitherkcreatedknorkdestroyedkinkchemicalkreactions.
D) Compoundskarekformedkwhenkatomskofkmorekthankonekelementkcombine;kakgivenkcompoundka
lwayskhasktheksamekrelativeknumberkandkkindkofkatoms.
E) Eachkelementkiskcomposedkofkextremelyksmallkparticleskcalledkatoms.k
Answer:k A
Diff:k1 Var:k1 PagekRef:kSec.k2.1
LO:k 2.1k
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)k
Answer:k C
Diff:k2 Var:k1 PagekRef:kSec.k2.1
LO:k 2.1k
GO:k G2
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,DOWNLOAD THE Test Bank for Chemistry The Central Science 14th Edition Brown
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,kKCl
kAnswer:k B

Diff:k1 Var:k1 PagekRef:kSec.k2.1
LO:k 2.1k
GO:k G2

5) Whichkstatementkbelowkcorrectlykdescribeskthekresponseskofkalpha,kbeta,kandkgammakradiationkt
okankelectrickfield?
A) Bothkbetakandkgammakarekdeflectedkinktheksamekdirection,kwhilekalphakshowsknokresponse.
B) Bothkalphakandkgammakarekdeflectedkinktheksamekdirection,kwhilekbetakshowsknokresponse.
C) Bothkalphakandkbetakarekdeflectedkinktheksamekdirection,kwhilekgammakshowsknokresponse.
D) Alphakandkbetakarekdeflectedkinkoppositekdirections,kwhilekgammakshowsknokresponse.
E) Onlykalphakiskdeflected,kwhilekbetakandkgammakshowknokresponse.k
Answer:k D
Diff:k2 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

6) Whichkonekofkthekfollowingkisknotktruekconcerningkcathodekrays?
A) Theykoriginatekfromktheknegativekelectrode.
B) Theyktravelkinkstraightklineskinkthekabsencekofkelectrickorkmagnetickfields.
C) Theykimpartkaknegativekchargektokmetalskexposedktokthem.
D) Theykarekmadekupkofkelectrons.
E) Thekcharacteristicskofkcathodekrayskdependkonkthekmaterialkfromkwhichktheykarekemitted.k
Answer:k E
Diff:k2 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

7) Thekchargekonkankelectronkwaskdeterminedkinkthek .
A) cathodekrayktube,kbykJ.kJ.kThomson
B) Rutherfordkgoldkfoilkexperiment
C) Millikankoilkdropkexperiment
D) Daltonkatomicktheory
E) atomicktheorykofkmatterk
Answer:k C
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2



2
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,DOWNLOAD THE Test Bank for Chemistry The Central Science 14th Edition Brown
k k k k k k k k k k k




8) -rayskconsistkofkfast-movingkelectrons.
A) Alpha
B) Beta
C) Gamma
D) X
E) nonekofkthekabovek
Answer:k B
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

9) ThekgoldkfoilkexperimentkperformedkinkRutherford'sklabk .
A) confirmedkthekplum-puddingkmodelkofkthekatom
B) ledktokthekdiscoverykofkthekatomicknucleus
C) waskthekbasiskforkThomson'skmodelkofkthekatom
D) utilizedkthekdeflectionkofkbetakparticleskbykgoldkfoil
E) provedktheklawkofkmultiplekproportionsk
Answer:k B
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

10) InkthekRutherfordknuclear-atomkmodel,k .
A) thekheavyksubatomickparticles,kprotonskandkneutrons,kresidekinktheknucleus
B) thekthreekprincipalksubatomickparticlesk(protons,kneutrons,kandkelectrons)kallkhavekessentiallykt
heksamekmass
C) theklightksubatomickparticles,kprotonskandkneutrons,kresidekinktheknucleus
D) masskiskspreadkessentiallykuniformlykthroughoutkthekatom
E) thekthreekprincipalksubatomickparticlesk(protons,kneutrons,kandkelectrons)kallkhavekessentiallykt
heksamekmasskandkmasskiskspreadkessentiallykuniformlykthroughoutkthekatom
Answer:k A
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

11) Cathodekrayskarek .
A) neutrons
B) X-rays
C) electrons
D) protons
E) atomskA
nswer:k C
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2



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, DOWNLOAD THE Test Bank for Chemistry The Central Science 14th Edition Brown
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12) Cathodekrayskarekdeflectedkawaykfromkaknegativelykchargedkplatekbecausek .
A) theykareknotkparticles
B) theykarekpositivelykchargedkparticles
C) theykarekneutralkparticles
D) theykareknegativelykchargedkparticles
E) theykarekemittedkbykallkmatterk
Answer:k D
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

13) Inkthekabsencekofkmagnetickorkelectrickfields,kcathodekraysk .
A) doknotkexist
B) travelkinkstraightklines
C) cannotkbekdetected
D) becomekpositivelykcharged
E) bendktowardkaklightksourcek
Answer:k B
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

14) OfkthekthreektypeskofkradioactivitykcharacterizedkbykRutherford,kwhichkis/arekelectricallykc
harged?
A) β-rays
B) α-rayskandkβ-rays
C) α-rays,kβ-rays,kandkγ-rays
D) α-rays
E) α-rayskandkγ-rays
Answer:k B
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2

15) OfkthekthreektypeskofkradioactivitykcharacterizedkbykRutherford,kwhichkis/areknotkelectricallykc
harged?
A) α-rays
B) α-rays,kβ-rays,kandkγ-rays
C) γ-rays
D) α-rayskandkβ-rays
E) α-rayskandkγ-rays
Answer:k C
Diff:k1 Var:k1 PagekRef:kSec.k2.2
LO:k 2.2k
GO:k G2



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