BASIC CHEMISTRY FINAL EXAM Q AND
A
Identifyxcthexcstatexcofxcmatterxcthatxchasxcvariablexcvolumexcandxcvariablexcshape.xc-xcanswer--
Gas
Identifyxcthexcstatexcofxcmatterxcthatxchasxcdefinitexcvolumexcandxcvariablexcshape.xc-xcanswer--
Liquid
Choosexcthexchomogeneousxcmixturexcfromxcthexclistxcbelow.
Sugarxcwater
Mud
Icexcwater
Dirt
Salsaxc-xcanswer--Sugarxcwater
Putxc155,000xcinxcscientificxcnotationxcwithxc2xcsignificantxcfigures.xc-xcanswer--1.6x10⁵
Howxcmanyxcsignificantxcfiguresxcarexcinxcthexcmeasurement,xc0.02300m?xc-xcanswer--4
Whatxcanswerxcshouldxcbexcreported,xcwithxcthexccorrectxcnumberxcofxcsignificantxcfigures,xcforxcth
excfollowingxccalculation?
(249.362+41)/63.498xc-xcanswer--4.57
Whatxcanswerxcshouldxcbexcreported,xcwithxcthexccorrectxcnumberxcofxcsignificantxcfigures,xcforxcth
excfollowingxccalculation?
(965.43x3.911)+9413.4136xc-xcanswer--1.3189x10⁴
Filtrationxc-xcanswer--
Pouringxcaxcmixturexcthroughxcaxcfilterxcpaperxctoxcseparatexcthexcsolidxcfromxcthexcliquid
Twoxcorxcmorexcsubstancesxcinxcvariablexcproportions,xcwherexcthexccompositionxcisxcthexcsamexct
hroughoutxcisxc-xcanswer--Axchomogeneousxcmixture
Whichxcofxcthexcfollowingxcnumbersxcisxcthexcbiggest?
5.16x10⁵
3.16x10⁴
9.912x10⁴
3.04x10⁴
9.11x10⁻⁵xc-xcanswer--5.16x10⁵
Answerxc54.2/14.1x12.0xcinxcscientificxcnotation.xc-xcanswer--3.20x10⁻¹
, Whichxcofxcthexcfollowingxchasxc2xcsignificantxcfigures?
140xcapples
30xcft
88xcatoms
100xccm
Nonexcofxcthesexchavexc2xcsignificantxcfiguresxc-xcanswer--
Nonexcofxcthesexchavexc2xcsignificantxcfigures
Youxclovexcraisins.xcYouxclovexcthemxcsoxcmuchxcthatxcyouxceatxc8xcraisins.xcHowxcmanyxcsignifica
ntxcfiguresxcisxcthis?xc-xcanswer--Infinite
Howxcmanyxcsignificantxcfiguresxcarexcinxc0.052980?xc-xcanswer--5
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
4.18x10⁻⁴xc+xc1.30x10⁻²xc-xcanswer--1.34E-2
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
(4.80/2.210)xc+xc3.1014xc-xcanswer--5.27E0
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
Youxcfindxcaxcrandomxcmetalxctoyxcandxcwantxctoxcknowxcitsxcdensityxc(obviously!).xcYouxcplacexcth
exctoyxcinxcwaterxcandxcwatchxcasxcthexcvolumexcofxcwaterxcisxcdisplacedxcfromxc21.6xcmLxctoxc24.8xc
mL.xcThexcmassxcofxcthexctoyxcisxc16.16xcg.xcWhatxcisxcthexcdensityxc(inxcg/mL)?xc-xcanswer--5.1E0
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
Axcrocketxcacceleratesxcatxc2.01xcm/s².xcHowxcfastxcisxcthatxcinxcft/hr²xc(given:xc3.28084xcft/m)?xc-
xcanswer--8.55E7
Axcroomxchasxcanxcareaxcofxc32.4xcyd².xcWhatxcisxcthexcareaxcofxcthexcroomxcinxcunitsxcofxcft²?
xc(3ft=1yd)xc-xcanswer--2.92E0
Howxcmanyxcprotonsxcarexcinxcthexcfollowingxc^13C?xc-xcanswer--6
²³Na,xc²⁴Na,xcandxc²⁰Naxcarexc-xcanswer--Isotopes
Whichxcofxcthexcfollowingxcelementsxcwouldxcbexcthexcbestxcconductorxcofxcheatxcandxcelectricity?
Nitrogen
Carbon
Xenon
Manganesexc-xcanswer--Manganese
Whichxcofxcthexcfollowingxchasxcthexcmostxcpredictablexcchargexcwhenxcundergoingxcaxcchemicalxc
reaction?
Technetium
A
Identifyxcthexcstatexcofxcmatterxcthatxchasxcvariablexcvolumexcandxcvariablexcshape.xc-xcanswer--
Gas
Identifyxcthexcstatexcofxcmatterxcthatxchasxcdefinitexcvolumexcandxcvariablexcshape.xc-xcanswer--
Liquid
Choosexcthexchomogeneousxcmixturexcfromxcthexclistxcbelow.
Sugarxcwater
Mud
Icexcwater
Dirt
Salsaxc-xcanswer--Sugarxcwater
Putxc155,000xcinxcscientificxcnotationxcwithxc2xcsignificantxcfigures.xc-xcanswer--1.6x10⁵
Howxcmanyxcsignificantxcfiguresxcarexcinxcthexcmeasurement,xc0.02300m?xc-xcanswer--4
Whatxcanswerxcshouldxcbexcreported,xcwithxcthexccorrectxcnumberxcofxcsignificantxcfigures,xcforxcth
excfollowingxccalculation?
(249.362+41)/63.498xc-xcanswer--4.57
Whatxcanswerxcshouldxcbexcreported,xcwithxcthexccorrectxcnumberxcofxcsignificantxcfigures,xcforxcth
excfollowingxccalculation?
(965.43x3.911)+9413.4136xc-xcanswer--1.3189x10⁴
Filtrationxc-xcanswer--
Pouringxcaxcmixturexcthroughxcaxcfilterxcpaperxctoxcseparatexcthexcsolidxcfromxcthexcliquid
Twoxcorxcmorexcsubstancesxcinxcvariablexcproportions,xcwherexcthexccompositionxcisxcthexcsamexct
hroughoutxcisxc-xcanswer--Axchomogeneousxcmixture
Whichxcofxcthexcfollowingxcnumbersxcisxcthexcbiggest?
5.16x10⁵
3.16x10⁴
9.912x10⁴
3.04x10⁴
9.11x10⁻⁵xc-xcanswer--5.16x10⁵
Answerxc54.2/14.1x12.0xcinxcscientificxcnotation.xc-xcanswer--3.20x10⁻¹
, Whichxcofxcthexcfollowingxchasxc2xcsignificantxcfigures?
140xcapples
30xcft
88xcatoms
100xccm
Nonexcofxcthesexchavexc2xcsignificantxcfiguresxc-xcanswer--
Nonexcofxcthesexchavexc2xcsignificantxcfigures
Youxclovexcraisins.xcYouxclovexcthemxcsoxcmuchxcthatxcyouxceatxc8xcraisins.xcHowxcmanyxcsignifica
ntxcfiguresxcisxcthis?xc-xcanswer--Infinite
Howxcmanyxcsignificantxcfiguresxcarexcinxc0.052980?xc-xcanswer--5
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
4.18x10⁻⁴xc+xc1.30x10⁻²xc-xcanswer--1.34E-2
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
(4.80/2.210)xc+xc3.1014xc-xcanswer--5.27E0
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
Youxcfindxcaxcrandomxcmetalxctoyxcandxcwantxctoxcknowxcitsxcdensityxc(obviously!).xcYouxcplacexcth
exctoyxcinxcwaterxcandxcwatchxcasxcthexcvolumexcofxcwaterxcisxcdisplacedxcfromxc21.6xcmLxctoxc24.8xc
mL.xcThexcmassxcofxcthexctoyxcisxc16.16xcg.xcWhatxcisxcthexcdensityxc(inxcg/mL)?xc-xcanswer--5.1E0
Answerxcthexcfollowingxcinxcscientificxcnotationxc(usingxcE)xcwithxcthexccorrectxcnumberxcofxcsignifi
cantxcfigures.
Axcrocketxcacceleratesxcatxc2.01xcm/s².xcHowxcfastxcisxcthatxcinxcft/hr²xc(given:xc3.28084xcft/m)?xc-
xcanswer--8.55E7
Axcroomxchasxcanxcareaxcofxc32.4xcyd².xcWhatxcisxcthexcareaxcofxcthexcroomxcinxcunitsxcofxcft²?
xc(3ft=1yd)xc-xcanswer--2.92E0
Howxcmanyxcprotonsxcarexcinxcthexcfollowingxc^13C?xc-xcanswer--6
²³Na,xc²⁴Na,xcandxc²⁰Naxcarexc-xcanswer--Isotopes
Whichxcofxcthexcfollowingxcelementsxcwouldxcbexcthexcbestxcconductorxcofxcheatxcandxcelectricity?
Nitrogen
Carbon
Xenon
Manganesexc-xcanswer--Manganese
Whichxcofxcthexcfollowingxchasxcthexcmostxcpredictablexcchargexcwhenxcundergoingxcaxcchemicalxc
reaction?
Technetium
