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cfsamsonkariuki04@gmail.com Distributioncfofcfthiscfdocumentcfiscfillegal
AP CHEMISTRY SEMESTER 1 EXAM REVIEW
QUESTIONS AND ANSWERS
Twocfdifferentcfsamples,cfobtainedcfincftwocfdifferentcfcountriescfbutcfappearingcfthecfsame,cfwerecfanalyzed.cfThecfr esultscfofcfthecfanalysiscfarecfshowncfincfthecftablecfabove.cfWhatcfcancfbestcfbecfconcludedcffromcfthecfdata?cf- cfanswer--Thecfsamplescfarecflikelycfthecfsamecfcompoundcfbecausecfthecfratioscfofcfthecfelementscfarecfthecfsame.Ancfunknowncfwhitecfsolidcfiscfgentlycfheated.cfITcfiscfobservedcfthatcfthecfcolorcfofcfthecfsolidcfturnscffromcfwhitecftocfbl ack.cfWhatcfcancfbestcfbecfconcludedcffromcfthiscfobservation?cf-cfanswer-- Acfchemicalcfchangecfmustcfhavecfoccuredcfbecausecfthecfcolorcfchangecfindicatescfthatcfacfnewcfsubstancecfhascffo rmed.Identifycfthecfchemicalcfpropertycffromcfthecffollowingcflist.cf-cfanswer--Flammable Thecftemperaturecfofcfacfsolutioncfiscfmeasuredcfascf- 34cfdegreescfcelcius.cfWhatcfiscfthecftemperaturecfincfdegreescfkelvin.cf-cfanswer--+239cfK Thecfdensitycfofcfgoldcfiscf19.3cfg/ cm.cfWhatcfvolumecfofcfgoldcfmustcfbecfusedcftocfproducecfacfpeicecfofcfthecfmetalcfthatcfhascfacfmasscfofcf1.93cfkg.cf- cfanswer--1.00cfxcf10^2 Whatcfiscfthecfanswercftocf(2.04cfxcf10^3)(5.00cfxcf10^-6)cfincfscientificcfnotationcf-cfanswer--1.02x10^-2 youcfcancfconvertcfmilligramscfintocfgramscfbycfmultiplyingcfthecfnumbercfofcfmilligramscfby...cf-cfanswer--0.001 Thecfnumbercfofcfsignificantcffigurescfincfacfmeasurementcfiscfdeterminedcfbycfthe:cf-cfanswer-- Precisioncfofcfthecfmeasuringcfinstrument.Howcfmanycfsignificantcffigurescfarecfcontainedcfincfthecfmeasurementcf0.0004510cfg?cf-cfanswer--4cfsigcffig Thecfdensitycfofcfmercurycfiscf13.6cfg/cm.cfWhatcfiscfthecfmasscfofcf2.00cfliterscfofcfmercury.cf-cfanswer--NOTcfSURE whichcfofcfthecffollowingcfelementscfarecfmostcflikelycftocfformcfancfioniccfbondcfwithcfeachcfother?cf-cfanswer-- MagnesiumcfandcfIodine Whichcfisotopecfiscfrepresentedcfincfthecfdrawingcfshowncfbelow?cf-cfanswer--47Sm 62 HowcfmanycfneutronscfarecfincfthecfnucleuscfofcfancfatomcfthatcfhascfacfZcfnumbercfofcf7cfandcfacfAcfnumbercfofcf15?cf- cfanswer--8 Whatcfiscfthecfcorrectcfformulacfforcfacfcompoundcfthatcfcontainscfaluminumcfionscfandcfoxidecfions.cf-cfanswer-- Al2O3 WhencfErnestcfRutherfordcffiredcfalphacfparticlescfatcfacfthincfsheetcfofcfgoldcffoil.cfmostcfofcfthecfparticlescfpassedcfthr oughcfthecffoilcfwithcflittlecforcfnocfreflection.cfThecfbestcfinterpretationcfofthiscfdatacfis:cf-cfanswer-- Goldcfatomscfarecfmadecfofcfmostlycfemptycfspace.Whichcfiscfthecfbestcfdescriptioncfofcfthecfatomcforcfioncfillustratedcfabove.cf-cfanswer-- Ancfanioncfofcfbrominecfwithcfmasscfnumbercf79cfandcfacf-1cfcharge.Whichcfofcfthecffollowingcfgivescfyoucfthecfmostcfinformationcfaboutcfacfmolecule?cf-cfanswer-- Thecfstructuralcfformula
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