CHEM 101 FINAL IVY TECH QUESTIONS WITH CORRECT ANSWERS

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