Chemistry The Central Science 14th Edition Brown Test Bank.pdf

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




Chemistry:b Theb Centralb Science,b 14eb (Brown,betbal.)bChapte
rb2b Atoms,bMolecules,bandbIons

2.1 Multiple-Choiceb Questions

1) A b moleculeb of b waterb containsb hydrogenb andboxygenb inb ab1:8bratiob bybmass.b Thisb isb ab statement bo
fb .
A) theb law b of b multipleb proportions
B) theb law b of b constant b composition
C) theb law b of b conservationb of b mass
D) theb law b of b conservationb of b energy
E) nonebof bthebaboveb
Answer:b B
Diff:b 2 Var:b 1 Pageb Ref:b Sec.b 2.1
LO:b 2.1b
GO:b G2

2) Whichb oneb of b theb followingb isb not b oneb of b theb postulatesb of b Dalton'sb atomicb theory?
A) Atomsb areb composed b of b protons,b neutrons,b and b electrons.
B) Allb atomsb of b ab givenbelement b areb identical;b thebatomsb ofbdifferent belementsb areb different bandb h
aveb different b properties.
C) Atomsb of b anb element b arebnot bchangedbintobdifferent btypesbof batomsb byb chemicalb reactions:b a
tomsb areb neitherb created b norb destroyed b inb chemicalb reactions.
D) Compoundsb areb formed bwhenbatomsb ofbmoreb thanb onebelement b combine;b ab givenbcompoundba
lwaysb hasb theb sameb relativeb numberb and b kind b of b atoms.
E) Eachb element b isb composed b of b extremelybsmallb particlesb called b atoms.b
Answer:b A
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.1
LO:b 2.1b
GO:b G2

3) Considerb theb followingb selected b postulatesb of b Dalton'sb atomicb theory:
(i) Eachb element b isb composed b of b extremelyb smallb particlesb called b atoms.
(ii) Atomsb areb indivisible.
(iii) Atomsb of b ab givenb element b areb identical.
(iv) Atomsb of b different b elementsb areb different b and b haveb different b properties.

Whichb of b theb postulatesb is(are)b nob longerb considered b valid?
A) (i)b and b (ii)
B) (ii)b only
C) (ii)b and b (iii)
D) (iii)b only
E) (iii)band b(iv)b
Answer:b C
Diff:b 2 Var:b 1 Pageb Ref:b Sec.b 2.1
LO:b 2.1b
GO:b G2
1
Copyright b ©b 2018 bPearson bEducation,b Inc.
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,DOWNLOAD THE Test Bank for Chemistry The Central Science 14th Edition Brown
b b b b b b b b b b b




4) Whichb pairb of b substancesb could b beb used b tob illustrateb theb law b of b multipleb proportions?
A) SO2,b H2SO 4
B) CO,b CO 2
C) H 2O,b O2
D) CH4,b C6H 12O6
E) NaCl,bKCl
b Answer:b B

Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.1
LO:b 2.1b
GO:b G2

5) Whichb statement b below b correctlybdescribesb theb responsesb ofb alpha,bbeta,bandbgammab radiationb t
ob anb electricb field?
A) Bothb betab and b gammab areb deflected b inb theb sameb direction,b whileb alphab showsb nob response.
B) Bothb alphab and b gammab areb deflected b inb theb sameb direction,b whileb betab showsb nob response.
C) Bothb alphab and b betab areb deflected b inb theb sameb direction,b whileb gammab showsb nob response.
D) Alphab and b betab areb deflected b inb oppositeb directions,b whileb gammab showsb nob response.
E) Onlyb alphab isb deflected,bwhileb betab and b gammab show b nob response.b
Answer:b D
Diff:b 2 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2

6) Whichb oneb of b theb followingb isb not b trueb concerningb cathodeb rays?
A) Theyb originateb fromb theb negativeb electrode.
B) Theybtravelb inb straight b linesb inb theb absenceb of b electricb orb magneticb fields.
C) Theyb impart b ab negativeb chargeb tob metalsb exposed b tob them.
D) Theyb areb madeb upb of b electrons.
E) Theb characteristicsb of b cathodeb raysb dependbonbtheb materialb fromb whichb theyb areb emitted.b
Answer:b E
Diff:b 2 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2

7) Theb chargeb onb anb electronb wasb determined b inb theb .
A) cathodeb rayb tube,b byb J.b J.b Thomson
B) Rutherford b gold b foilb experiment
C) Millikanb oilb dropb experiment
D) Daltonb atomicb theory
E) atomicbtheorybof bmatterb
Answer:b C
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2



2
Copyright b ©b 2018 bPearson bEducation,b Inc.
mynursytest.store

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




8) -raysb consist b of b fast-movingb electrons.
A) Alpha
B) Beta
C) Gamma
D) X
E) nonebof bthebaboveb
Answer:b B
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2

9) Theb gold b foilb experiment b performed b inb Rutherford'sb labb .
A) confirmed b theb plum-puddingb modelb of b theb atom
B) led b tob theb discoveryb of b theb atomicb nucleus
C) wasb theb basisb forb Thomson'sb modelb of b theb atom
D) utilized b theb deflectionb of b betab particlesb byb gold b foil
E) proved b theb law bofb multiplebproportionsb
Answer:b B
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2

10) Inb theb Rutherford b nuclear-atomb model,b .
A) theb heavyb subatomicb particles,b protonsb and b neutrons,b resideb inb theb nucleus
B) theb threeb principalb subatomicb particlesb (protons,b neutrons,b and belectrons)b allb haveb essentiallyb t
heb sameb mass
C) theb light b subatomicb particles,b protonsb and b neutrons,b resideb inb theb nucleus
D) massb isb spread b essentiallyb uniformlyb throughout b theb atom
E) theb threeb principalb subatomicb particlesb (protons,b neutrons,b and belectrons)b allb haveb essentiallyb t
heb sameb massb and b massb isb spread b essentiallyb uniformlyb throughout b theb atom
Answer:b A
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2

11) Cathodeb raysb areb .
A) neutrons
B) X-rays
C) electrons
D) protons
E) atomsb A
nswer:b C
Diff:b 1 Var:b 1 Pageb Ref:b Sec.b 2.2
LO:b 2.2b
GO:b G2



3
Copyright b ©b 2018 bPearson bEducation,b Inc.
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