3) Whichjofjthejfollowingjstatementsjregardingjmatterjisjfalse?
A) Alljlifejisjcomposedjofjmatter.
B) Alljmatterjhasjmass.
C) Alljmatterjisjcomposedjofjelements.
D) Alljmatterjexistsjinjthejformjofjcompounds.jA
nswer:j D
Topic:j 2.1
Skill:j Remembering/Understandingj
LearningjOutcome:j 2.1
4) Whichjofjthejfollowingjstatementsjbestjdescribesjajcompound?
A) Ajcompoundjisjajpurejelement.
B) Ajcompoundjcontainsjtwojorjmorejdifferentjelementsjinjajfixedjratio.
C) Ajcompoundjisjexemplifiedjbyjsodium.
D) Ajcompoundjisjajsolution.j
Answer:j B
Topic:j 2.1
Skill:j Remembering/Understandingj
LearningjOutcome:j 2.1
,DOWNLOAD THE Test Bank for Campbell Biology Concepts and Connections 9th Ed
j j j j j j j j j j j
ition Taylor j
5) Injthejequationj2jH2j+jO2j→j2jH2O,
A) H2,jO2,jandjH2Ojarejalljcompounds.
B) H2,jO2,jandjH2Ojarejalljelements.
C) onlyjH2Ojisjajcompound.
D) onlyjH2jandjO2jarejcompounds.jA
nswer:j C
Topic:j 2.1
Skill:j Applying/AnalyzingjLe
arningjOutcome:j 2.1
GlobaljLO:j 2
6) Whichjofjthejfollowingjtracejelementsjneededjbyjhumansjisjcommonlyjaddedjtojtablejsalt?
A) iodine
B) iron
C) magnesium
D) fluoridej
Answer:jAj
Topic:j 2.2
Skill:jRemembering/Understandingj
LearningjOutcome:j 2.1
GlobaljLO:j 5
7) Injsomejareas,jfluoridejisjaddedjduringjthejmunicipaljwaterjtreatmentjprocessjinjorderjtojhelp
A) preventjgoiter.
B) preventjthejgrowthjofjbacteria.
C) preventjthejdevelopmentjofjmentaljretardation.
D) reducejtoothjdecay.j
Answer:j D
Topic:j 2.2
Skill:j Remembering/Understandingj
LearningjOutcome:j 2.1
GlobaljLO:j 5
8) Whichjofjthejfollowingjparticlesjarejfoundjinjthejnucleusjofjanjatom?
A) protonsjandjneutrons
B) protonsjandjelectrons
C) neutronsjandjelectrons
D) neutrons,jelectrons,jandjprotonsj
Answer:j A
Topic:j 2.3
Skill:j Remembering/Understandingj
LearningjOutcome:j 2.2
, DOWNLOAD THE Test Bank for Campbell Biology Concepts and Connections 9th Ed
j j j j j j j j j j j
ition Taylor j
9) Electronsjmovejaboutjthejnucleusjofjanjatomjinjthejsamejwayjthat
A) insectsjflyjaroundjajbrightjlampjatjnight.
B) carsjarejparkedjalongjthejsidesjofjajstreet.
C) boatsjcrossjajlake.
D) birdsjmigratejtojajnewjwinterjhome.jA
nswer:j A
Topic:j 2.3
Skill:j Applying/AnalyzingjLe
arningjOutcome:j 2.2
GlobaljLO:j 2
10) Whatjisjthejatomicjmassjofjanjatomjthatjhasj6jprotons,j6jneutrons,jandj6jelectrons?
A) 6
B) 8
C) 12
D) 18
Answer:j CjTop
ic:j 2.3
Skill:j Applying/AnalyzingjLe
arningjOutcome:j 2.2
GlobaljLO:j 2,j4
11) Anjunchargedjatomjofjboronjhasjanjatomicjnumberjofj5jandjanjatomicjmassjofj11.jHowjmanyj
electronsjdoesjboronjhave?
A) 11
B) 15
C) 5
D) 2
Answer:j CjTop
ic:j 2.3
Skill:j Applying/AnalyzingjLe
arningjOutcome:j 2.2
GlobaljLO:j 2
12) Thejsodiumjatomjcontainsj11jelectrons,j11jprotons,jandj12jneutrons.jWhatjisjthejmassjnum
berjofjsodium?
A) 11
B) 22
C) 23
D) 34
Answer:j CjTop
ic:j 2.3
Skill:j Applying/AnalyzingjLe
arningjOutcome:j 2.2
GlobaljLO:j 2,j4
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