Exam (elaborations)
Test Bank For General Chemistry The Essential Concept 7Th Edition Raymond By Chang
Test Bank For General Chemistry The Essential Concept 7Th Edition Raymond By Chang
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,Chapter er01: erIntroduction1. A ertentative erexplanation erfor era erset erof erobservations erthat ercan erbe
ertested erby erfurthererexperimentation eris erreferred erto eras
A) a erhypothesis. B) e r a erlaw. C) e r a ertheory.
D) ernone erof erthe erabove.erAns: e r A Category: e r Easy
Section: er1.2
2. A erconcise erverbal eror ermathematical erstatement erof era errelationship erbetween
erphenomena erthat eriseralways erthe ersame erunder erthe ersame erconditions eris erreferred erto
eras
A) a erhypothesis. B) e r a erlaw. C) e r a ertheory.
D) ernone erof erthe erabove.erAns: e r B Category: e r Easy
Section: er1.2
3. A erunifying erprinciple erthat erexplains era erbody erof erfacts erand errelations eris erreferred erto eras
A) a erhypothesis. B) e r a erlaw. C) e r a ertheory.
D) ernone erof erthe erabove.erAns: e r C Category: e r Easy
Section: er1.2
4. Complete erthe erfollowing ersentence. e r A erhypothesis eris
A) a ertentative erexplanation erfor era erset erof erobservations erthat ercan erbe
ertested erby erfurthererexperimentation.
B) a erstatement erdescribing era errelationship erbetween erphenomena erthat eris eralways
erthe ersameerunder erthe ersame erconditions.
C) a erunifying erprinciple erthat erexplains era erbody erof erfacts erand errelations.
D) a ermodel erused erto ervisualize erthe
erinvisible.erAns: e r A Category:
e r Easy Section: e r 1.2
5. Complete erthe erfollowing ersentence. e r A erscientific erlaw eris
A) a ertentative erexplanation erfor era erset erof erobservations erthat ercan erbe
ertested erby erfurthererexperimentation.
B) a erstatement erdescribing era errelationship erbetween erphenomena erthat eris eralways
erthe ersameerunder erthe ersame erconditions.
C) a erunifying erprinciple erthat erexplains era erbody erof erfacts erand errelations.
D) a ermodel erused erto ervisualize erthe
erinvisible.erAns: e r B Category:
e r Easy Section: e r 1.2
6. Complete erthe erfollowing ersentence. e r A ertheory eris
A) a ertentative erexplanation erfor era erset erof erobservations erthat ercan erbe
ertested erby erfurthererexperimentation.
B) a erstatement erdescribing era errelationship erbetween erphenomena erthat eris eralways
erthe ersameerunder erthe ersame erconditions.
C) a erunifying erprinciple erthat erexplains era erbody erof erfacts erand errelations.
D) a ermodel erused erto ervisualize erthe
erinvisible.erAns: e r C Category:
Page
er1
,er Easy Section: er 1.2
Page
er2
, Chapter er01:
erIntroduction
7. Choose erthe erresponse erthat erincludes erall erthe eritems erlisted erbelow erthat erare erpure
ersubstances.
i. erorange erjuice ii. ersteam iii. erocean erwater iv. eroxygen v. ervegetable ersoup
A) e r i, eriii, erv B) e r ii, eriv C) e r i, eriii, eriv D)
e r iv eronly E) erall erof erthem erare erpureerAns: e r B Category: e r Easy
Section: er1.2
8. Which erof erthe erfollowing eris eran erexample erof era erphysical erproperty?
A) corrosiveness erof ersulfuric eracid
B) toxicity erof ercyanide
C) flammability erof ergasoline
D) neutralization erof erstomach eracid erwith eran erantacid
E) lead erbecomes era erliquid erwhen erheated erto
er601 C erAns: e r E Category: e r Easy
Section: er1.4
9. Which erone erof erthe erfollowing eris eran erexample erof era erphysical erproperty?
A) dynamite erexplodes D) ice erfloats eron ertop erof erliquid erwater
B) meat errots erif erit eris ernot errefrigerated E) a ersilver erplatter ertarnishes
C) gasoline erburns
Ans: e r D Category: e r Easy Section: e r 1.4
10. Which erone erof erthe erfollowing errepresents era erphysical erchange?
A) water, erwhen erheated erto er100 C, erforms ersteam
B) bleach erturns erhair eryellow
C) sugar, erwhen erheated, erbecomes erbrown
D) milk erturns ersour
E) apples, erwhen erexposed erto erair, erturn
erbrownerAns: e r A Category:
e r Easy Section: e r 1.4
11. All erof erthe erfollowing erare erproperties erof ersodium. erWhich erone eris era
erphysical erproperty erofersodium?
A) It eris era ersurface erturns erblack erwhen erfirst erexposed erto erair.
B) It eris era ersolid erat er25 C erand erchanges erto era erliquid erwhen erheated erto er98 C.
C) When erplaced erin erwater erit ersizzles erand era ergas eris erformed.
D) When erplaced erin ercontact erwith erchlorine erit erforms era ercompound erthat ermelts erat
er801 C.
E) Sodium eris ernever erfound eras erthe erpure ermetal
erin ernature.erAns: e r B Category: e r Easy
Section: er1.4
12. All erof erthe erfollowing erare erproperties erof ertin. e r Which erone eris era erchemical erproperty erof
ertin?
A) Tin ercan erbe erhammered erinto era erthin ersheet.
B) At er–40 C era ersheet erof ertin ercrumbles erto era ergray erpowder.
C) Tin ermelts erat er231.9 C.
D) When era erbar erof ertin eris erbent, erit eremits eran eraudible er―cry‖.
Page er3
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