Oxidation and Reduction.docx
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Oxidation and Reduction.docx
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OxidationandReduction
OxidationandReductionReactions
Period/TopicWorksheetsQuiz
1.Oxidation,Reduction,Agents,&Reactions.1
2.Lab:
TheStrengthofOxidizingAgents.
3.OxidationNumbersSpontaneousReactions21
4.OxidationNumbers,ApplicationtoReactions.3
5.BalancingRedoxHalfReactionsAcid/Base.42
6.BalancingRedoxReactionsinAcid/Base.5
7.StandardPotentialsUsingChart.63
8.ElectrochemicalCells.7
9.ElectrochemicalCellsLab.
10.ElectrolyticCells.84
11.ElectrolyticCellsLab.
12.ApplicationofElectrochemicalCells
13.ApplicationofElectrolyticCells95
14.Corrosion,RedoxTitrations,Breathalyzer106
15.Review.InternetReviewPracticeTest1
16.ReviewPracticeTest2
17.Test.
Worksheet#1RedoxHalfReactionsandReactions
Defineeach
1.Oxidation
2.Reduction
3.Oxidizingagent
4.Reducingagent
Writehalfreactionsforeachofthefollowingatomsorions.Labeleachasoxidationorreduction.
5.Al
6.S
7.O-2
8.Ba2+
9.N3-
10.Br2
11.P
12.Ca
13Ga3+
14.S
15.H2
16.H+
17.F-
18.P3-
Balanceeachspontaneousredoxequation.Identifytheentitiesreducedandoxidized.Statethereducingagentandtheoxidizingagent.
19.Al&Zn2+
20.F2&O2-
21.O2&Ca
22.Al3+&Li
Writetheoxidationandreductionreactionsforeachredoxreaction.Thefirstoneisdoneforyou.
23.Fe2++Co⇄Co2++Fe
Oxidation:
CoCo2++2e-
Reduction:
Fe2++2e-Fe
24.3Ag++Ni⇄Ni3++3Ag
Oxidation:
Reduction:
25.Cu2++Pb⇄Pb2++Cu
Oxidation:
Reduction:
26.O2+2Sn⇄O2-+2Sn2+
Oxidation:
Reduction:
27.Co2++2F-⇄Co+F2
Oxidation:
Reduction:
28.Therearenineformulasforoxidizingagentsfromquestions19to28.Listthemall.Onlyconsiderformulasthatareontheleftsideofanyequation.Thefirstoneisdoneforyou.
Zn2+
29.Therearenineformulasforreducingagentsfromquestions19to28.Listthemall.Onlyconsiderformulasthatareontheleftsideofanyequation.Thefirstoneisdoneforyou.
Al
Worksheet#2RedoxHalfReactionsandReactions
1.StatetheOxidationNumberofeachoftheelementsthatisunderlined.
a)NH3_____b)H2SO4_____
c)ZnSO3_____d)Al(OH)3_____
e)Na_____f)Cl2_____
g)AgNO3_____h)ClO4-_____
i)SO2_____j)K2Cr2O4_____
k)Ca(ClO3)2_____l)K2Cr2O7_____
m)HPO32-_____n)HClO_____
o)MnO2_____p)KClO3_____
q)PbO2_____r)PbSO4_____
s)K2SO4_____t)NH4+_____
u)Na2O2_____v)FeO_____
w)Fe2O3_____x)SiO44-_____
y)NaIO3_____z)ClO3-_____
aa)NO3-_____bb)Cr(OH)4_____
cc)CaH2_____dd)Pt(H2O)5(OH)2+_____
ee)Fe(H2O)63+_____ff)CH3COOH_____
2.Whatistheoxidationnumberofcarbonineachofthefollowingsubstances?
a)CO_____b)C_____
c)CO2_____d)CO32-_____
e)C2H6_____f)CH3OH_____
3.Foreachofthefollowingreactants,identify:
theoxidizingagent,thereducingagent,thesubstanceoxidizedandthesubstancereduced.Useoxidationnumbers.
a)Cu2+(aq)+Zn(s)→Cu(s)+Zn2+(aq)
Substanceoxidized_____Substancereduced_____
Oxidizingagent_____Reducingagent_____
b)Cl2(g)+2Na(s)→2Na+(aq)+2Cl-(aq)
Substanceoxidized_____Substancereduced____
Oxidizingagent_____Reducingagent_____
Worksheet#3SpontaneousandNon-spontaneousRedoxReactions
Describeeachreactionasspontaneousornon-spontaneous.
1.Au3++Fe3+→Fe2++Au
2.Pb+Fe3+→Fe2++Pb2+
3.Cl2+F-→F2+2Cl-
4.S2O82-+Pb→2SO42-+Pb2+
5.Cu2++2Br-→Cu+Br2
6.Sn2++Br2→Sn4++2Br-
7.Pb2++Fe2+→Fe3++Pb
8.Canyoukeep1MHClinanironcontainer?
Iftheanswerisno,writeabalancedequationforthereactionthatwouldoccur.
9.Canyoukeep1MHClinanAgcontainer?
Iftheanswerisno,writeabalancedequationforthereactionthatwouldoccur.
10.Canyoukeep1MHNO3inanAgcontainer?
Iftheanswerisno,writeabalancedequationforthereactionthatwouldoccur.(HNO3consistsoftwoionsH+andNO3-)
11.Canyoukeep1MHNO3inanAucontainer?
Iftheanswerisno,writeabalancedequationforthereactionthatwouldoccur.(Remember,HNO3consistsoftwoionsH+andNO3-)
12.Circleeachformulathatisabletoloseanelectron
O2Cl-FeNa+
13.Determinetheoxidationnumberfortheelementunderlined.
PbSO4__________ClO3-__________
HP032-__________Na2O2__________
CaH2__________Al2(SO4)3__________
NaIO3__________C4H12__________
14.Al3++Zn→Al+Zn2+
Substanceoxidized_______Oxidizingagent________
15.Cr2O72-+ClO2-→Cr3++ClO4-
Substancereduced________Oxidizingagent________
16.StatetheOxidationNumberofeachoftheelementsthatisunderlined.
a)NH3__________b)H2SO4__________
c)ZnCO3__________d)Al(OH)3__________
e)Na__________f)Cl2__________
17.Balancetheredoxequationusingthehalfreactionmethod.
Al&AgNO3
18.Circleeachformulathatisabletoloseanelectron
O2Cl-FeNa+
Determinetheoxidationnumberfortheelementunderlined.
19.PbSO4__________
20.ClO3-__________
21.HPO32-__________
22.Na202__________
23.CaH2__________
24.NaIO3__________
25.C4H12__________
26.Al2(SO4)3__________
27.Al3++Zn→Al+Zn2+
Substanceoxidized__________Oxidizingagent__________
28.Cr2O72-+ClO2-→Cr3++ClO4-
Substancereduced__________Oxidizingagent__________
29.O3+H2O+SO2→SO42-+O2+2H+
Substanceoxidized__________Reducingagent__________
30.3As2O3+4NO3-+7H2O+4H+→6H3AsO4+4NO
Substancereduced__________Reducingagent__________
Worksheet#4BalancingRedoxReactions
Balanceeachofthefollowinghalf-cellreactions.(IneachcaseassumethatthereactiontakesplaceinanACIDICsolution.)Also,statewhetherthereactionisoxidationorreduction.
1.S2O32-→SO42-
2.MnO4-→Mn2+
3.As→AsO43-
4.Cr3+→Cr2O72-
5.Pb2+→PbO2
6.SO42-→S
7.NO3-→NO
8.NO3-→NH4+
9.BrO3-→Br2
BalancingHalfCellReactions
Balanceinbasicsolution.
10.NO3-→NO
11.MnO4-→Mn2+
12.As→AsO43-
13.Cr3+→Cr2O72-
14.Pb2+→PbO2
15.SO42-→S
16.S2O32-→SO42-
17.NO3-→NH4+
18.BrO3-→Br2
19.Determineifeachofthefollowingchangesisoxidation,reductionorneither.
SO32-→SO42-________________
CaO→Ca________________
CrO42-→Cr2O72-________________
CrO42-→Cr3+________________
2I-→I2________________
IO3-→I2________________
MnO4-→Mn2+________________
ClO2-→ClO-________________
20.Cr2O72-+Fe2+→Cr3++Fe3+
Substanceoxidized_____Substancereduced_____
Oxidizingagent_____Reducingagent_____
Worksheet#5BalancingRedoxReactionsinAcidandBasicSolution
Balanceeachredoxequation.Assumeallarespontaneous.Usethehalfreactionmethod.
1.O2-+F2
2.Al+O2
3.K+Zn+2
Balanceeachhalfreactioninbasicsolution.
4.Cr2O72-→Cr3+
5.NO→NO3-
6.SO42-→SO2
7.MnO2→Mn2O3
Balanceeachredoxreactioninacidsolutionusingthehalfreactionmethod.
8.H2O2+Cr2O72-→O2+Cr3+
9.TeO32-+N2O4→Te+NO3-
10.ReO4-+IO-→IO3-+Re
11.PbO2+I2→Pb2++IO3-
12.As→H2AsO4-+AsH3
Balanceeachredoxreactioninbasicsolutionusingthehalfreactionmethod.
13.O2+Cr3+→H2O2+Cr2O72-
14.Te+NO3-→TeO32-+N2O4
15.IO3-+Re→ReO4-+IO-
16.Pb2++IO3-→PbO2+I2
17.Cr2O72-+Hg→Hg2++Cr3+
Stateofthechangerepresentsoxidation,reductionorneither.Useoxidation#s.Rememberthatiftheoxidation#increasesitmeansoxidationandwhenitdecreasesitmeanreduction!
18.MnO2→Mn2O3
19.NH3→NO2
20.HClO4→HCl+H2O
21.O2→O2-
22.P2O5→P4H10
Determinetheoxidationnumber
23.H2SO422.HSO4-
24.P423.NaH
25.UO324.Na2O2
26.U2O525.PbSO4
Worksheet#6Review
1.Describeeachinyourownwords
a)Oxidation
b)Reduction
c)Oxidizingagent
d)Reducingagent
2.Writehalfreactionsforeach.Describeasoxidationorreduction.Circlealloxidizingagents.
a)Na
b)Ca
c)Al3+
d)F1-
e)N2
f)O2-
3.Writethereactionbetweenthefollowing:
Usethehalfreactionmethod.
a)Ca+Al(NO3)3
b)Sn+AgNO3
c)Sn+Au(NO3)3
4.Circleeachreducingagent:
CuCu+AlAl3+
5.Circleeachoxidizingag
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