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c c c c c c c c c
Chapter 02: Testbankc c
Student:c
1. Thecsmallestcunitcofcancelementcthatcstillcretainscthecchemicalcandcphysicalcpropertiescofcthatcelementcisccalledca(n)
A. isotope.
B. nucleus.
C. atom.
D. molecularcbond.
E. neutrino.
2. Incancatom,cthecnumbercofcprotonscalwayscequalscthecnumbercof
A. electrons.
B. neutrons.
C. neutronscandcprotons.
D. quarks.
E. neutrinos.
3. Howcmanycelementscoccurcnaturally?
A. 112
B. 92
C. 64
D. 32
E. 6
4. Thecatomiccnumbercofcancatomciscdeterminedcbycthecnumbercof
A. protons.
B. neutrons.
C. electrons.
D. protonscandcneutrons.
E. protonscandcelectrons.
5. Ancelementccannotcbecbrokencdowncbycchemicalcmeans.
TruecFalse
6. WhyciscHecpositionedcabovecNecincthecperiodicctable?
A. Theycbothchavecthecsamecatomiccmass.
B. Theycbothchavecthecsamecnumbercofcelectronscinctheircoutermostcorbital.
C. Theycbothchavecacfullcoutermostcorbital.
D. Theycbothchavecthecsamecatomiccnumber.
E. Theycbothchavecthecsamecnumbercofcprotonscinctheircnuclei.
7. Bechascancatomiccnumbercofc4candcancatomiccmasscofc9.cHowcmanycprotonscdoescitchave?
A. 4
B. 5
C. 9
D. 13
E. 7
8. Whatciscthecsymbolcforcsodium?
A. Na
B. S
C. So
D. N
E. Dm
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c c c c c c c c c
9. Whichcofcthecfollowingcelementscwillchavecmorecthanctwocelectronscandchavecacfullcoutercorbital?
A. He
B. Ne
C. C
D. N
E. O
10. Isotopescofcancelementcdiffercduectocthecnumbercof
A. protons.
B. neutrons.
C. electrons.
D. bothcprotonscandcelectrons.
E. neutrinos.
11. Carboncdatingciscaccommoncmethodcemployedcincdatingccertainckindscofcfossils.cItciscbasedconcthec radioactivecdecayc
14
ofcancisotopecofccarbonc(C ).cReferringctocthecatomiccnumbercofccarboncattainedcfromcthecperiodicctable,chowcmanyc
14c
neutronscdoescC have?
A. 2
B. 4
C. 8
D. 12
E. 14
12. Whatcsubstanceciscusedcincmedicinectocproducecvariouscimagescofcorganscandctissues?
A. acmixture
B. actracer
C. ancemulsion
D. accolloid
E. acsensor
13. Radiationc canc havec bothc positivec andc negativec impactc onch
umans.
TruecFalse
14. Twocorcmorecatomscjoinedctogethercthroughcthecsharingcofcelectronscareccalledca(n)
A. atomiccunit.
B. molecule.
C. compound.
D. isotope.
E. ion.
15. Ca3(PO4)2crepresentsca(n)
A. element.
B. mixture.
C. compound.
D. isotope.
E. atom.
16. Atomscthatcsharecelectronschavecwhatctypecofcbonds?
A. covalent
B. neutral
C. hydrogen
D. colloidal
E. ionic
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c c c c c c c c c
17. CaCl2ciscacsaltcthatcformscascthecresultcofcwhatctypecofcbond?
A. covalent
B. hydrogen
C. polar
D. nonpolar
E. ionic
18. Watercmakescupc60–70%cofctotalcbodycweight.
TruecFalse
19. Whichctypecofcbondciscresponsiblecforcholdingctwocwatercmoleculesctogether,ccreatingcthecpropertiescofcwater?
A. hydrogen
B. covalent
C. ionic
D. polar
E. doubleccovalent
20. Hydrogencbonds
A. resultcfromctheclosscofcneutronscbycancatom.
B. resultcincthecformationcofcsalts.
C. involvectheclosscandcgaincofcelectrons.
D. involvecthecsharingcofcelectrons.
E. arecrelativelycweakcandccancbecbrokencratherceasily.
21. Thecreasoncwaterciscpolarciscbecause
A. incpolarcmoleculescatomscsharecelectronscevenly.
B. thecelectronscspendcmorectimeccirclingcthecoxygencatomcthancthechydrogens.
C. hydrophiliccmoleculescinteractcwithcwater.
D. hydrophobiccmoleculescdocnotcinteractcwithcwater.
E. thereciscactransfercofcelectronscfromcthechydrogenctocthecoxygen.
22. WhichcofcthecfollowingccharacteristicscofcwaterciscmostcresponsiblecforcthecsinkingcofcthecTitanic?
A. Waterciscliquidcatcroomctemperature.
B. Waterchascachighcheatcofcvaporization.
C. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
D. Frozencwatercisclesscdensecthancliquidcwater.
E. Watercmoleculescareccohesive.
23. Onc ac warmc dayc inc April,c Tinac jumpedc intoc thec swimmingc pool.c Toc herc surprisec thec waterc wasc reallyc cold.c Whichcp
ropertycofcwatercdidcshecdiscover?
A. Watercmoleculescareccohesive.
B. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
C. Watercpossesseschydrogencbonds.
D. Waterciscacpolarcmolecule.
E. Frozencwatercisclesscdensecthancliquidcwater.
24. Williamcnoticedcwatercmysteriouslycclimbingcupcaccapillaryctube.cThisciscancexamplecofcwhichcpropertycofcwater?
A. Frozencwatercisclesscdensecthancliquidcwater.
B. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
C. Watercmoleculescareccohesive.
D. Waterchascachighcheatcofcvaporization.
E. Waterciscacsolvent.
+c
25. Incancacidiccsolution,cthecnumbercofcH is
A. lesscthancthecnumbercofcOH-.
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c c c c c c c c c
B. greatercthancthecnumbercofcOH-.
C. equalctocthecnumbercofcOH-.
D. 3ctimesclesscthancthecnumbercofcOH-.
E. 10ctimesclesscthancthecnumbercofcOH-.
+
26. AcsolutioncwithcacpHcofc7chasc10ctimescascmanycHc c ascacpHcofc6.
TruecFalse
+
27. Acsolutionccontainingc0.00001cmolescofcHc c hascacpHcof
A. 3.
B. 5.
C. 7.
D. 9.
E. 11.
28. Thecpresencecofcacbuffercincourcbloodchelpscmaintainchomeostasis.
TruecFalse
29. Joiningcsmallcmoleculesc(monomers)ctogetherctocformclongercchainsc(polymers)crequirescacprocessccalled
A. achydrolysiscreaction.
B. acdehydrationcreaction.
C. monomerization.
D. emulsification.
E. disassembly.
30. Whichcofcthecfollowingciscnotconecofcthecfourcclassescofcorganiccmoleculescfoundcinccells?
A. vitamins
B. lipids
C. proteins
D. carbohydrates
E. nucleiccacids
31. Incbiology,ccallingcsomethingcorganiccmeanscthatcitcwascgrowncwithoutcthecusecofcanyctypecofcherbicide.
TruecFalse
32. NaClciscnotcancorganiccmolecule.
TruecFalse
33. Afterclunch,courcdigestivecsystemcwillcusecthecprocesscofchydrolysisctocbreakcthecfoodcdowncintocsmallercsubunits.
Truec False
34. Achydrolysiscreactioncinvolvesctheclosscofcwater.
TruecFalse
35. Whichcgroupingcofcelementsciscfoundcinccarbohydrates?
A. Cc-cHc-cO
B. Cc-cHc-cP
C. Hc-cOc-cCl
D. Nc-cSc-cO
E. Cac-cHc-cO
36. Sugarscwithcthreectocsevenccarboncatomscareccalled
A. monosaccharides.
B. disaccharides.
C. trisaccharides.
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c c c c c c c c c
Chapter 02: Testbankc c
Student:c
1. Thecsmallestcunitcofcancelementcthatcstillcretainscthecchemicalcandcphysicalcpropertiescofcthatcelementcisccalledca(n)
A. isotope.
B. nucleus.
C. atom.
D. molecularcbond.
E. neutrino.
2. Incancatom,cthecnumbercofcprotonscalwayscequalscthecnumbercof
A. electrons.
B. neutrons.
C. neutronscandcprotons.
D. quarks.
E. neutrinos.
3. Howcmanycelementscoccurcnaturally?
A. 112
B. 92
C. 64
D. 32
E. 6
4. Thecatomiccnumbercofcancatomciscdeterminedcbycthecnumbercof
A. protons.
B. neutrons.
C. electrons.
D. protonscandcneutrons.
E. protonscandcelectrons.
5. Ancelementccannotcbecbrokencdowncbycchemicalcmeans.
TruecFalse
6. WhyciscHecpositionedcabovecNecincthecperiodicctable?
A. Theycbothchavecthecsamecatomiccmass.
B. Theycbothchavecthecsamecnumbercofcelectronscinctheircoutermostcorbital.
C. Theycbothchavecacfullcoutermostcorbital.
D. Theycbothchavecthecsamecatomiccnumber.
E. Theycbothchavecthecsamecnumbercofcprotonscinctheircnuclei.
7. Bechascancatomiccnumbercofc4candcancatomiccmasscofc9.cHowcmanycprotonscdoescitchave?
A. 4
B. 5
C. 9
D. 13
E. 7
8. Whatciscthecsymbolcforcsodium?
A. Na
B. S
C. So
D. N
E. Dm
02-1
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c c c c c c c c c
9. Whichcofcthecfollowingcelementscwillchavecmorecthanctwocelectronscandchavecacfullcoutercorbital?
A. He
B. Ne
C. C
D. N
E. O
10. Isotopescofcancelementcdiffercduectocthecnumbercof
A. protons.
B. neutrons.
C. electrons.
D. bothcprotonscandcelectrons.
E. neutrinos.
11. Carboncdatingciscaccommoncmethodcemployedcincdatingccertainckindscofcfossils.cItciscbasedconcthec radioactivecdecayc
14
ofcancisotopecofccarbonc(C ).cReferringctocthecatomiccnumbercofccarboncattainedcfromcthecperiodicctable,chowcmanyc
14c
neutronscdoescC have?
A. 2
B. 4
C. 8
D. 12
E. 14
12. Whatcsubstanceciscusedcincmedicinectocproducecvariouscimagescofcorganscandctissues?
A. acmixture
B. actracer
C. ancemulsion
D. accolloid
E. acsensor
13. Radiationc canc havec bothc positivec andc negativec impactc onch
umans.
TruecFalse
14. Twocorcmorecatomscjoinedctogethercthroughcthecsharingcofcelectronscareccalledca(n)
A. atomiccunit.
B. molecule.
C. compound.
D. isotope.
E. ion.
15. Ca3(PO4)2crepresentsca(n)
A. element.
B. mixture.
C. compound.
D. isotope.
E. atom.
16. Atomscthatcsharecelectronschavecwhatctypecofcbonds?
A. covalent
B. neutral
C. hydrogen
D. colloidal
E. ionic
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c c c c c c c c c
17. CaCl2ciscacsaltcthatcformscascthecresultcofcwhatctypecofcbond?
A. covalent
B. hydrogen
C. polar
D. nonpolar
E. ionic
18. Watercmakescupc60–70%cofctotalcbodycweight.
TruecFalse
19. Whichctypecofcbondciscresponsiblecforcholdingctwocwatercmoleculesctogether,ccreatingcthecpropertiescofcwater?
A. hydrogen
B. covalent
C. ionic
D. polar
E. doubleccovalent
20. Hydrogencbonds
A. resultcfromctheclosscofcneutronscbycancatom.
B. resultcincthecformationcofcsalts.
C. involvectheclosscandcgaincofcelectrons.
D. involvecthecsharingcofcelectrons.
E. arecrelativelycweakcandccancbecbrokencratherceasily.
21. Thecreasoncwaterciscpolarciscbecause
A. incpolarcmoleculescatomscsharecelectronscevenly.
B. thecelectronscspendcmorectimeccirclingcthecoxygencatomcthancthechydrogens.
C. hydrophiliccmoleculescinteractcwithcwater.
D. hydrophobiccmoleculescdocnotcinteractcwithcwater.
E. thereciscactransfercofcelectronscfromcthechydrogenctocthecoxygen.
22. WhichcofcthecfollowingccharacteristicscofcwaterciscmostcresponsiblecforcthecsinkingcofcthecTitanic?
A. Waterciscliquidcatcroomctemperature.
B. Waterchascachighcheatcofcvaporization.
C. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
D. Frozencwatercisclesscdensecthancliquidcwater.
E. Watercmoleculescareccohesive.
23. Onc ac warmc dayc inc April,c Tinac jumpedc intoc thec swimmingc pool.c Toc herc surprisec thec waterc wasc reallyc cold.c Whichcp
ropertycofcwatercdidcshecdiscover?
A. Watercmoleculescareccohesive.
B. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
C. Watercpossesseschydrogencbonds.
D. Waterciscacpolarcmolecule.
E. Frozencwatercisclesscdensecthancliquidcwater.
24. Williamcnoticedcwatercmysteriouslycclimbingcupcaccapillaryctube.cThisciscancexamplecofcwhichcpropertycofcwater?
A. Frozencwatercisclesscdensecthancliquidcwater.
B. Thectemperaturecofcliquidcwatercrisescandcfallscslowly.
C. Watercmoleculescareccohesive.
D. Waterchascachighcheatcofcvaporization.
E. Waterciscacsolvent.
+c
25. Incancacidiccsolution,cthecnumbercofcH is
A. lesscthancthecnumbercofcOH-.
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c c c c c c c c c
B. greatercthancthecnumbercofcOH-.
C. equalctocthecnumbercofcOH-.
D. 3ctimesclesscthancthecnumbercofcOH-.
E. 10ctimesclesscthancthecnumbercofcOH-.
+
26. AcsolutioncwithcacpHcofc7chasc10ctimescascmanycHc c ascacpHcofc6.
TruecFalse
+
27. Acsolutionccontainingc0.00001cmolescofcHc c hascacpHcof
A. 3.
B. 5.
C. 7.
D. 9.
E. 11.
28. Thecpresencecofcacbuffercincourcbloodchelpscmaintainchomeostasis.
TruecFalse
29. Joiningcsmallcmoleculesc(monomers)ctogetherctocformclongercchainsc(polymers)crequirescacprocessccalled
A. achydrolysiscreaction.
B. acdehydrationcreaction.
C. monomerization.
D. emulsification.
E. disassembly.
30. Whichcofcthecfollowingciscnotconecofcthecfourcclassescofcorganiccmoleculescfoundcinccells?
A. vitamins
B. lipids
C. proteins
D. carbohydrates
E. nucleiccacids
31. Incbiology,ccallingcsomethingcorganiccmeanscthatcitcwascgrowncwithoutcthecusecofcanyctypecofcherbicide.
TruecFalse
32. NaClciscnotcancorganiccmolecule.
TruecFalse
33. Afterclunch,courcdigestivecsystemcwillcusecthecprocesscofchydrolysisctocbreakcthecfoodcdowncintocsmallercsubunits.
Truec False
34. Achydrolysiscreactioncinvolvesctheclosscofcwater.
TruecFalse
35. Whichcgroupingcofcelementsciscfoundcinccarbohydrates?
A. Cc-cHc-cO
B. Cc-cHc-cP
C. Hc-cOc-cCl
D. Nc-cSc-cO
E. Cac-cHc-cO
36. Sugarscwithcthreectocsevenccarboncatomscareccalled
A. monosaccharides.
B. disaccharides.
C. trisaccharides.
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