General Chemistry The Essential Concept 7Th Edition Raymond By Chang - Test Bank

,Chapter 01: Introduction
a a



1. Aatentativeaexplanationaforaaasetaofaobservationsathatacanabeatestedabyafurther
aexperimentationaisareferredatoaas
A) aahypothesis. B)a aalaw. C)a aatheory.
D)a noneaofatheaabove.aAns:a A Category:a Easy
Section:a 1.2

2. Aaconciseaverbalaoramathematicalastatementaofaaarelationshipabetweenaphenomenaathatais
aalwaysatheasameaunderatheasameaconditionsaisareferredatoaas
A) aahypothesis. B)a aalaw. C)a aatheory.
D)a noneaofatheaabove.aAns:a B Category:a Easy
Section:a 1.2

3. Aaunifyingaprincipleathataexplainsaaabodyaofafactsaandarelationsaisareferredatoaas
A) aahypothesis. B)a aalaw. C)a aatheory.
D)a noneaofatheaabove.aAns:a C Category:a Easy
Section:a 1.2

4. Completeatheafollowingasentence.a Aahypothesisais
A) aatentativeaexplanationaforaaasetaofaobservationsathatacanabeatestedabyafurther
aexperimentation.
B) aastatementadescribingaaarelationshipabetweenaphenomenaathataisaalwaysatheasame
aunderatheasameaconditions.
C) aaunifyingaprincipleathataexplainsaaabodyaofafactsaandarelations.
D) aamodelausedatoavisualizeatheainvisible.
aAns:a A Category:a Easy Section:a 1.2

5. Completeatheafollowingasentence.a Aascientificalawais
A) aatentativeaexplanationaforaaasetaofaobservationsathatacanabeatestedabyafurther
aexperimentation.
B) aastatementadescribingaaarelationshipabetweenaphenomenaathataisaalwaysatheasame
aunderatheasameaconditions.
C) aaunifyingaprincipleathataexplainsaaabodyaofafactsaandarelations.
D) aamodelausedatoavisualizeatheainvisible.
aAns:a B Category:a Easy Section:a 1.2

6. Completeatheafollowingasentence.a Aatheoryais
A) aatentativeaexplanationaforaaasetaofaobservationsathatacanabeatestedabyafurther
aexperimentation.
B) aastatementadescribingaaarelationshipabetweenaphenomenaathataisaalwaysatheasame
aunderatheasameaconditions.

C) aaunifyingaprincipleathataexplainsaaabodyaofafactsaandarelations.
D) aamodelausedatoavisualizeatheainvisible.
aAns:a C Category:a Easy Section:a 1.2



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, Chaptera01:aIntroduction


7. Chooseathearesponseathataincludesaallatheaitemsalistedabelowathataareapureasubstances.
i.aorangeajuice ii.asteam iii.aoceanawater iv.aoxygen v.avegetableasoup
A)a i,aiii,av B)a ii,aiv C)a i,aiii,aiv D)a ivaonly
E)a allaofathemaareapureaAns:a B Category:a Easy
Section:a 1.2

8. Whichaofatheafollowingaisaanaexampleaofaaaphysicalaproperty?
A) corrosivenessaofasulfuricaacid
B) toxicityaofacyanide
C) flammabilityaofagasoline
D) neutralizationaofastomachaacidawithaanaantacid
E) leadabecomesaaaliquidawhenaheatedatoa601 Ca
Ans:a E Category:a Easy Section:a 1.4

9. Whichaoneaofatheafollowingaisaanaexampleaofaaaphysicalaproperty?
A) dynamiteaexplodes D) iceafloatsaonatopaofaliquidawater
B) meatarotsaifaitaisanotarefrigerated E) aasilveraplatteratarnishes
C) gasolineaburns
Ans:a D Category:a Easy Section:a 1.4

10. Whichaoneaofatheafollowingarepresentsaaaphysicalachange?
A) water,awhenaheatedatoa100 C,aformsasteam
B) bleachaturnsahairayellow
C) sugar,awhenaheated,abecomesabrown
D) milkaturnsasour
E) apples,awhenaexposedatoaair,aturnabrown
aAns:a A Category:a Easy Section:a 1.4

11. Allaofatheafollowingaareapropertiesaofasodium.a Whichaoneaisaaaphysicalapropertyaof
asodium?

A) Itaisaaasurfaceaturnsablackawhenafirstaexposedatoaair.
B) Itaisaaasolidaata25 Caandachangesatoaaaliquidawhenaheatedatoa98 C.
C) Whenaplacedainawateraitasizzlesaandaaagasaisaformed.
D) Whenaplacedainacontactawithachlorineaitaformsaaacompoundathatameltsaata801 C.
E) Sodiumaisaneverafoundaasatheapureametalainanature.
aAns:a B Category:a Easy Section:a 1.4

12. Allaofatheafollowingaareapropertiesaofatin.a Whichaoneaisaaachemicalapropertyaofatin?
A) Tinacanabeahammeredaintoaaathinasheet.
B) Ata–40 Caaasheetaofatinacrumblesatoaaagrayapowder.
C) Tinameltsaata231.9 C.
D) Whenaaabaraofatinaisabent,aitaemitsaanaaudiblea―cry‖.
E) Tinaerodesawhenaaddedatoahydrochloricaacid,aandaaaclearagasaforms.
aAns:a E Category:a Medium Section:a 1.4




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, Chaptera01:aIntroduction


13. Whichaoneaofatheafollowingarepresentsaaachemicalachange?
A) boilingawateratoaformasteam
B) burningaaapieceaofacoal
C) heatingaleadauntilaitamelts
D) mixingaironafilingsaandasandaataroomatemperature
E) breakingaglass
Ans:a B Category:a Medium Section:a 1.4

14. Whichaofatheafollowingadoesanotarepresentaaachemicalachange?
A) aafreshlyacutaappleaturnsabrown
B) milkaturnsasouraonastandingaataroomatemperature
C) whenacooledatoa0 C,aliquidawaterabecomesaice
D) fryingaanaegg
E) fermentationaofasugaratoaalcoholaAn
s:a C Category:a Easy Section:a 1.4

15. TheaSIaprefixesananoaandadeciarepresent,arespectively:
A) 10–a9aanda10–a6. D) 109aanda10–a6.
B) 106aanda10–a3. E) 10–a9aanda10–a1.
3 –3
C) 10 aanda10 a .
Ans:a E Category: Easy Section:a 1.7

16. TheaSIaprefixesamilliaandamegaarepresent,arespectively:
A) 106aanda10–a6. D) 10–a3aanda109.
–3
B) 10 a aanda10 .6
E) 10–a6aanda10–a3.
C) 103aanda10–a6.
Ans:a B Category: Easy Section:a 1.7

17. TheaSIaprefixesakiloaandacentiarepresent,arespectively:
A) 103aanda10–a2. D) 10–a6aanda102.
B) 106aanda10–a1. E) 102aanda10–a3.
–3 –2
C) 10 a aanda10 a .
Ans:a A Category: Easy Section: 1.7

18. Aananometeracorrespondsato:
A) 10–a2ameters. D) 10–a9ameters.
B) 10–a3ameters. E) 10–a12ameters.
C) 10–a6ameters.
Ans:a D Category:a Easy Section:a 1.7

19. Aamicroliteracorrespondsato:
A) 10–a2aliters. B)a 10–a3aliters. C)a 10–a6aliters. D)a 10–a9aliters. E)a 10–
12
a aliters.aAns:a C Category:a Easy Section:a 1.7




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