CHEM 101 FINAL EXAM QUESTIONS
AND ANSWERS
Whichxofxthexfollowingxisxaxtentativexexplanationxforxaxsetxofxobservations?
a.xLaw
b.xHypothesis
c.xTheory
d.xPhenomena
e.xPredictionx-xans-✔✔b.xHypothesis
Whichxofxthexfollowingxcannotxbexseparatedxintoxsimplerxsubstancesxbyxchemicalxmean
s?
a.xElement
b.xEmulsion
c.xCompound
d.xHomogeneousxmixture
e.xHeterogeneousxmixturex-xans-✔✔a.xElement
Whichxofxthexfollowingxisxanxextensivexproperty?
a.xDensity
b.xTemperature
c.xMass
d.xSpecificxHeat
e.xPressurex-xans-✔✔C.xMass
Whichxofxthexfollowingxisxaxchemicalxchange?
a.xBoilingxwater
b.xMeltingxwax
c.xBroilingxaxsteakxonxaxgrill
d.xCondensingxwaterxvaporxintoxrainfall
e.xCarvingxaxpiecexofxwoodx-xans-✔✔c.xBroilingxaxstakexonxaxgrill
Whichxonexofxthesexrepresentsxaxphysicalxchange?
a.xWater,xwhenxheated,xformsxsteam.
b.xBleachxturnsxhairxyellow.
c.xSugar,xwhenxheated,xbecomesxbrown.
d.xMilkxturnsxsour.
e.xApples,xwhenxexposedxtoxair,xturnxbrown.x-xans-
✔✔a.xWater,xwhenxheated,xformsxsteam.
, Howxmanyxsignificantxfiguresxdoesxthexsumx8.5201x+x1.93xcontain?x-xans-✔✔4
ThexcityxofxLosxAngelesxisxnowxapproximatelyx2400xmilesxsouthxofxAnchorage,xAlaska.x
ItxisxmovingxslowlyxnorthwardxasxthexSanxAndreasxfaultxslidesxalong.xIfxLosxAngelesxisxt
oxarrivexnearxAnchoragexinx76xmillionxyears,xatxwhatxaveragexratexwillxitxhavextoxmovexi
nxmmxperxmonth?x(1xmix=x1609xm)
a.x2.0x×x10-10xmm/mo.
b.x6.6x×x10-6xmm/mo.
c.x4.2xmm/mo.
d.x9.5xmm/mo.
e.x51xmm/mo.x-xans-✔✔c.x4.2xmm/mo.
ThexSIxprefixxmega-x(M)xmeans
a.x10^-6
b.x10^-3
c.x10^3
d.x10^6
e.x10^9x-xans-✔✔d.x10^6
Inxthexperiodicxtable,xatomsxarexarrangedxinxorderxof
a.xincreasingxatomicxmass.
b.xincreasingxatomicxnumber.
c.xphysicalxproperties.
d.xperiodicity.
e.xchemicalxreactivities.x-xans-✔✔b.xincreasingxatomicxnumber
AtomsxX,xY,xZ,xandxRxhavexthexfollowingxnuclearxcompositions:
I
II
III
IV
Whichxofxthexfollowingxarexisotopesxofxthexsamexelement?
Selectxone:
a.xIx&xII
b.xIx&xIV
c.xIIx&xIV
d.xIIIx&xIV
e.xIx&xIIIx-xans-✔✔e.xIx&xIII
AND ANSWERS
Whichxofxthexfollowingxisxaxtentativexexplanationxforxaxsetxofxobservations?
a.xLaw
b.xHypothesis
c.xTheory
d.xPhenomena
e.xPredictionx-xans-✔✔b.xHypothesis
Whichxofxthexfollowingxcannotxbexseparatedxintoxsimplerxsubstancesxbyxchemicalxmean
s?
a.xElement
b.xEmulsion
c.xCompound
d.xHomogeneousxmixture
e.xHeterogeneousxmixturex-xans-✔✔a.xElement
Whichxofxthexfollowingxisxanxextensivexproperty?
a.xDensity
b.xTemperature
c.xMass
d.xSpecificxHeat
e.xPressurex-xans-✔✔C.xMass
Whichxofxthexfollowingxisxaxchemicalxchange?
a.xBoilingxwater
b.xMeltingxwax
c.xBroilingxaxsteakxonxaxgrill
d.xCondensingxwaterxvaporxintoxrainfall
e.xCarvingxaxpiecexofxwoodx-xans-✔✔c.xBroilingxaxstakexonxaxgrill
Whichxonexofxthesexrepresentsxaxphysicalxchange?
a.xWater,xwhenxheated,xformsxsteam.
b.xBleachxturnsxhairxyellow.
c.xSugar,xwhenxheated,xbecomesxbrown.
d.xMilkxturnsxsour.
e.xApples,xwhenxexposedxtoxair,xturnxbrown.x-xans-
✔✔a.xWater,xwhenxheated,xformsxsteam.
, Howxmanyxsignificantxfiguresxdoesxthexsumx8.5201x+x1.93xcontain?x-xans-✔✔4
ThexcityxofxLosxAngelesxisxnowxapproximatelyx2400xmilesxsouthxofxAnchorage,xAlaska.x
ItxisxmovingxslowlyxnorthwardxasxthexSanxAndreasxfaultxslidesxalong.xIfxLosxAngelesxisxt
oxarrivexnearxAnchoragexinx76xmillionxyears,xatxwhatxaveragexratexwillxitxhavextoxmovexi
nxmmxperxmonth?x(1xmix=x1609xm)
a.x2.0x×x10-10xmm/mo.
b.x6.6x×x10-6xmm/mo.
c.x4.2xmm/mo.
d.x9.5xmm/mo.
e.x51xmm/mo.x-xans-✔✔c.x4.2xmm/mo.
ThexSIxprefixxmega-x(M)xmeans
a.x10^-6
b.x10^-3
c.x10^3
d.x10^6
e.x10^9x-xans-✔✔d.x10^6
Inxthexperiodicxtable,xatomsxarexarrangedxinxorderxof
a.xincreasingxatomicxmass.
b.xincreasingxatomicxnumber.
c.xphysicalxproperties.
d.xperiodicity.
e.xchemicalxreactivities.x-xans-✔✔b.xincreasingxatomicxnumber
AtomsxX,xY,xZ,xandxRxhavexthexfollowingxnuclearxcompositions:
I
II
III
IV
Whichxofxthexfollowingxarexisotopesxofxthexsamexelement?
Selectxone:
a.xIx&xII
b.xIx&xIV
c.xIIx&xIV
d.xIIIx&xIV
e.xIx&xIIIx-xans-✔✔e.xIx&xIII
