CHEM 101 FINAL IVY TECH QUESTIONS
WITH CORRECT ANSWERS
WhatBisBtheBdefinitionBofBaBscientificBtheory?B-BCORRECTBANSWERB-
aBmodelBthatBexplainsBtheBunderlyingBreasonsBforBobservationsBandBlaws
WhatBtermBbestBdescribesBaBbriefBstatementBthatBsummarizesBmanyBpastBobservationsBandBpredic
tsBnewBones?B-BCORRECTBANSWERB-scientificBlaw
WhichBofBtheBfollowingBisBanBexampleBofBaBscientificBlaw?B-BCORRECTBANSWERB-
InBaBchemicalBreaction,BmatterBisBneitherBcreatedBnorBdestroyed.
WhichBofBtheBfollowingBwouldBbeBconsideredBaBtheory?B-BCORRECTBANSWERB-
HeliumBballoonsBfloatBbecauseBheliumBisBlessBdenseBthanBair.
TheBkeyBtoBsuccessBinBchemistryBis:B-BCORRECTBANSWERB-allBofBtheBabove
ABplasticBblockBhasBdimensionsBofB2.2BcmBxB3.0BcmBxB1.5BcmBandBaBmassBofB12.4Bgrams.BWillBtheBbl
ockBfloatBinBwaterBandBwhy?B-BCORRECTBANSWERB-
No,BbecauseBtheBdensityBofBtheBblockBisB1.3Bg/mLBwhichBisBgreaterBthanBtheBdensityBofBwater.
GivenBtheBdensityBofBAuBisB19.3Bg/cm3,BdetermineBtheBmassBofBgoldB(inBgrams)BinBanBingotBwithBth
eBdimensionsBofB10.0BinBxB4.00BinBxB3.00Bin.B-BCORRECTBANSWERB-3.80BxB104
TheBdistanceBbetweenBtheBtwoBhydrogenBatomsBinBaBmoleculeBofBwaterBisB0.000000000172Bm.BEx
pressBthisBdistanceBinBscientificBnotation.B-BCORRECTBANSWERB-1.72BxB10-10Bm
HowBmanyBgramsBareBinB1.48BxB107Bμg?B-BCORRECTBANSWERB-14.8
, TheBcorrectBdecimalBrepresentationBofB6.453BxB103Bis:B-BCORRECTBANSWERB-6,453
HowBmanyBsignificantBdigitsBshouldBbeBreportedBinBtheBanswerBtoBtheBfollowingBquestion?
(4.3-3.7)BxB12.3=B-BCORRECTBANSWERB-1
TheBcorrectBscientificBnotationBforBtheBnumberB0.00050210Bis:B-BCORRECTBANSWERB-5.0210BxB10-
4
WhichBmeasurementBbelowBrepresentsBtheBheaviestBmass?B-BCORRECTBANSWERB-1BMg
DetermineBtheBanswerBtoBtheBfollowingBequationBwithBcorrectBnumberBofBsignificantBfigures:
2.02+8.102-0.0297=B-BCORRECTBANSWERB-10.09
ABleadBballBhasBaBmassBofB55.0BgramsBandBaBdensityBofB11.4Bg/cm3.BWhatBisBtheBvolumeBofBtheBball
?B-BCORRECTBANSWERB-4.82BmL
WhenBtheBvalueB4.449BisBroundedBtoBtwoBsignificantBfigures,BtheBnumberBshouldBbeBreportedBas:B-
BCORRECTBANSWERB-4.4
TheBcorrectBnumberBofBsignificantBfiguresBinBtheBnumberB865,000Bis:B-BCORRECTBANSWERB-
ambiguous
HowBmanyBinchesBareBinB2.80Bft?B-BCORRECTBANSWERB-33.6
WhichBofBtheBfollowingBwouldBNOTBbeBconsideredBaBcorrectBconversionBfactor?B-
BCORRECTBANSWERB-1BpairBofBshoesB=B1Bshoe
WITH CORRECT ANSWERS
WhatBisBtheBdefinitionBofBaBscientificBtheory?B-BCORRECTBANSWERB-
aBmodelBthatBexplainsBtheBunderlyingBreasonsBforBobservationsBandBlaws
WhatBtermBbestBdescribesBaBbriefBstatementBthatBsummarizesBmanyBpastBobservationsBandBpredic
tsBnewBones?B-BCORRECTBANSWERB-scientificBlaw
WhichBofBtheBfollowingBisBanBexampleBofBaBscientificBlaw?B-BCORRECTBANSWERB-
InBaBchemicalBreaction,BmatterBisBneitherBcreatedBnorBdestroyed.
WhichBofBtheBfollowingBwouldBbeBconsideredBaBtheory?B-BCORRECTBANSWERB-
HeliumBballoonsBfloatBbecauseBheliumBisBlessBdenseBthanBair.
TheBkeyBtoBsuccessBinBchemistryBis:B-BCORRECTBANSWERB-allBofBtheBabove
ABplasticBblockBhasBdimensionsBofB2.2BcmBxB3.0BcmBxB1.5BcmBandBaBmassBofB12.4Bgrams.BWillBtheBbl
ockBfloatBinBwaterBandBwhy?B-BCORRECTBANSWERB-
No,BbecauseBtheBdensityBofBtheBblockBisB1.3Bg/mLBwhichBisBgreaterBthanBtheBdensityBofBwater.
GivenBtheBdensityBofBAuBisB19.3Bg/cm3,BdetermineBtheBmassBofBgoldB(inBgrams)BinBanBingotBwithBth
eBdimensionsBofB10.0BinBxB4.00BinBxB3.00Bin.B-BCORRECTBANSWERB-3.80BxB104
TheBdistanceBbetweenBtheBtwoBhydrogenBatomsBinBaBmoleculeBofBwaterBisB0.000000000172Bm.BEx
pressBthisBdistanceBinBscientificBnotation.B-BCORRECTBANSWERB-1.72BxB10-10Bm
HowBmanyBgramsBareBinB1.48BxB107Bμg?B-BCORRECTBANSWERB-14.8
, TheBcorrectBdecimalBrepresentationBofB6.453BxB103Bis:B-BCORRECTBANSWERB-6,453
HowBmanyBsignificantBdigitsBshouldBbeBreportedBinBtheBanswerBtoBtheBfollowingBquestion?
(4.3-3.7)BxB12.3=B-BCORRECTBANSWERB-1
TheBcorrectBscientificBnotationBforBtheBnumberB0.00050210Bis:B-BCORRECTBANSWERB-5.0210BxB10-
4
WhichBmeasurementBbelowBrepresentsBtheBheaviestBmass?B-BCORRECTBANSWERB-1BMg
DetermineBtheBanswerBtoBtheBfollowingBequationBwithBcorrectBnumberBofBsignificantBfigures:
2.02+8.102-0.0297=B-BCORRECTBANSWERB-10.09
ABleadBballBhasBaBmassBofB55.0BgramsBandBaBdensityBofB11.4Bg/cm3.BWhatBisBtheBvolumeBofBtheBball
?B-BCORRECTBANSWERB-4.82BmL
WhenBtheBvalueB4.449BisBroundedBtoBtwoBsignificantBfigures,BtheBnumberBshouldBbeBreportedBas:B-
BCORRECTBANSWERB-4.4
TheBcorrectBnumberBofBsignificantBfiguresBinBtheBnumberB865,000Bis:B-BCORRECTBANSWERB-
ambiguous
HowBmanyBinchesBareBinB2.80Bft?B-BCORRECTBANSWERB-33.6
WhichBofBtheBfollowingBwouldBNOTBbeBconsideredBaBcorrectBconversionBfactor?B-
BCORRECTBANSWERB-1BpairBofBshoesB=B1Bshoe