UARK CHEM 1 FINAL EXAM QUESTIONS
AND ANSWERS
definejtheoryj-jans-modeljofjthejwayjnaturejworks;jexplainsjthejhowjorjwhy
2jisotopesjofjthejsamejelementjhavejthejsamejnumberjofj______,jbutjajdifferentjnumb
erjofj______j-jans-protons;jneutrons
definejhypothesisj-jans-ajtentativejinterpretationjorjexplanationjofjobservations
whatjhappensjtojejectedjelectronsjwhenjthejwavelengthjofjlightjdecreasesj-jans-
theyjwilljbejejectedjwithjmorejkineticjenergy
injthejphotoelectricjeffect,jwhatjhappensjtojejectedjelectronsjwhenjthejbrightnessjofjlig
htjisjincreasesj-jans-morejelectronsjwilljbejejectedjperjsecond
whatjisjthejPaulijExclusionjPrinciplej-jans-
Noj2jelectronsjinjanjatomjcanjhavejthejsamejsetjofj4jquantumjnumbers
whojmadejthejplumjpuddingjmodelj-jans-JjjThomson
whatjdoesjfrequencyjandjwavelengthjcorrespondjtoj-jans-thejcolorjofjlight
whatjdidjRoberjMilikanjdoj-jans-
thejoiljdropjexperiment;jdiscoveredjthejchargejofjanjelectron
whatjdidjJJjthomsonjdojandjdiscoverj-jans-
thejcathodejrayjexperimentjandjhejcreatedjthejplumjpuddingjmodeljandjhejdiscoveredj
thejelectron
whatjisjthejacronymj-jans-richjmenjinjvegasjusejexpensivejgadgets
definejlawj-jans-
ajbriefjstatementjthatjsummarizesjpastjobservationsjandjpredictsjfuturejones;jdescribe
sjwhatjhappens
listjthejelectromagneticjspectrumjinjorderjfromjlowestjenergyjtojhighestjenergyj-jans-
Radio,jmicrowave,jinfrared,jvisiblejlight,jultraviolet,jx-ray,jgammajray
(richjmenjinjvegasjusedjXpensivejgadgets)
whatjdoesjamplitudejcorrespondjtoj-jans-Thejbrightnessjofjajlight.
, examplejofjintensivejpropertyj-jans-densityjandjpressure
arejcombustionjreactionsjendothermicjorjexothermicj-jans-exothermic
whatjisjthejdifferencejbetweenjexothermicjandjendothermicj-jans-
exothermicjreleasesjenergyjandjgetsjhotter;jendothermicjabsorbsjenergyjandjgetsjcool
er
whatjhappensjtojenergyjasjfrequencyjincreasesj-jans-energyjalsojincreases
whatjisjdalton'sjatomicjtheoryj-jans-
1.jEachjelementjisjcomposedjofjtiny,jindestructiblejparticlesjcalledjatoms
2.jAlljatomsjofjajgivenjelementjhavejthejsamejmassjandjotherjproperties
3.jAtomsjcombinejinjsimple,jwhole-
numberjratios4.jAtomsjofjonejelementjcannotjchangejintojatomsjofjanotherjelement
whatjisjGj(Giga)j-jans-10^9
WhatjdidjRutherfordjdojandjdiscoverj-jans-
thejgoldjfoiljexperiment;jhejdisprovedjthejplumjpuddingjmodeljbyjdiscoveringjthejnucle
us
whatjdoesjthejphotoelectricjeffectjdemonstratej-jans-thejparticlejnaturejofjlife
whatjisjpicoj(p)j-jans-10^-12
givejtheoryjexamplesj-
jans-"atomsjcontainjelectronsjheldjinjajspherejofjpositivejcharge,jlikejplumjpudding"
"alljmatterjisjmadejofjtiny,jindestructiblejparticlesjcalledjatoms"
decij(d)j-jans-10^-1
whatjisjdiffractionj-jans-
whenjajwavejencountersjanjobstaclejorjslitjthatjisjcomparablejinjsizejtojitsjwavelength,j
itjbendsjaroundjit
Petaj(P)j-jans-10¹⁵
whatjhappensjtojwavelengthsjasjfrequencyjincreasesj-jans-wavelengthjdecreases
Whatjisjthejlawjofjmultiplejproportions?j-jans-
appliesjtoj2jsamplesjofj2jdifferentjcompoundsjwithjthejsamejelements;jex:jNOjandjN2
O5
whatjdoesjanjinterferencejpatternjdemonstratej-jans-thejwavejnaturejofjlight
AND ANSWERS
definejtheoryj-jans-modeljofjthejwayjnaturejworks;jexplainsjthejhowjorjwhy
2jisotopesjofjthejsamejelementjhavejthejsamejnumberjofj______,jbutjajdifferentjnumb
erjofj______j-jans-protons;jneutrons
definejhypothesisj-jans-ajtentativejinterpretationjorjexplanationjofjobservations
whatjhappensjtojejectedjelectronsjwhenjthejwavelengthjofjlightjdecreasesj-jans-
theyjwilljbejejectedjwithjmorejkineticjenergy
injthejphotoelectricjeffect,jwhatjhappensjtojejectedjelectronsjwhenjthejbrightnessjofjlig
htjisjincreasesj-jans-morejelectronsjwilljbejejectedjperjsecond
whatjisjthejPaulijExclusionjPrinciplej-jans-
Noj2jelectronsjinjanjatomjcanjhavejthejsamejsetjofj4jquantumjnumbers
whojmadejthejplumjpuddingjmodelj-jans-JjjThomson
whatjdoesjfrequencyjandjwavelengthjcorrespondjtoj-jans-thejcolorjofjlight
whatjdidjRoberjMilikanjdoj-jans-
thejoiljdropjexperiment;jdiscoveredjthejchargejofjanjelectron
whatjdidjJJjthomsonjdojandjdiscoverj-jans-
thejcathodejrayjexperimentjandjhejcreatedjthejplumjpuddingjmodeljandjhejdiscoveredj
thejelectron
whatjisjthejacronymj-jans-richjmenjinjvegasjusejexpensivejgadgets
definejlawj-jans-
ajbriefjstatementjthatjsummarizesjpastjobservationsjandjpredictsjfuturejones;jdescribe
sjwhatjhappens
listjthejelectromagneticjspectrumjinjorderjfromjlowestjenergyjtojhighestjenergyj-jans-
Radio,jmicrowave,jinfrared,jvisiblejlight,jultraviolet,jx-ray,jgammajray
(richjmenjinjvegasjusedjXpensivejgadgets)
whatjdoesjamplitudejcorrespondjtoj-jans-Thejbrightnessjofjajlight.
, examplejofjintensivejpropertyj-jans-densityjandjpressure
arejcombustionjreactionsjendothermicjorjexothermicj-jans-exothermic
whatjisjthejdifferencejbetweenjexothermicjandjendothermicj-jans-
exothermicjreleasesjenergyjandjgetsjhotter;jendothermicjabsorbsjenergyjandjgetsjcool
er
whatjhappensjtojenergyjasjfrequencyjincreasesj-jans-energyjalsojincreases
whatjisjdalton'sjatomicjtheoryj-jans-
1.jEachjelementjisjcomposedjofjtiny,jindestructiblejparticlesjcalledjatoms
2.jAlljatomsjofjajgivenjelementjhavejthejsamejmassjandjotherjproperties
3.jAtomsjcombinejinjsimple,jwhole-
numberjratios4.jAtomsjofjonejelementjcannotjchangejintojatomsjofjanotherjelement
whatjisjGj(Giga)j-jans-10^9
WhatjdidjRutherfordjdojandjdiscoverj-jans-
thejgoldjfoiljexperiment;jhejdisprovedjthejplumjpuddingjmodeljbyjdiscoveringjthejnucle
us
whatjdoesjthejphotoelectricjeffectjdemonstratej-jans-thejparticlejnaturejofjlife
whatjisjpicoj(p)j-jans-10^-12
givejtheoryjexamplesj-
jans-"atomsjcontainjelectronsjheldjinjajspherejofjpositivejcharge,jlikejplumjpudding"
"alljmatterjisjmadejofjtiny,jindestructiblejparticlesjcalledjatoms"
decij(d)j-jans-10^-1
whatjisjdiffractionj-jans-
whenjajwavejencountersjanjobstaclejorjslitjthatjisjcomparablejinjsizejtojitsjwavelength,j
itjbendsjaroundjit
Petaj(P)j-jans-10¹⁵
whatjhappensjtojwavelengthsjasjfrequencyjincreasesj-jans-wavelengthjdecreases
Whatjisjthejlawjofjmultiplejproportions?j-jans-
appliesjtoj2jsamplesjofj2jdifferentjcompoundsjwithjthejsamejelements;jex:jNOjandjN2
O5
whatjdoesjanjinterferencejpatternjdemonstratej-jans-thejwavejnaturejofjlight