Use the half-reaction method to balance each redox reaction
occurring in acidic aqueous solution.
Part A
PbO2(s)+I−(aq)⟶Pb2+(aq)+I2(s)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
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Part B
SO32−(aq)+MnO4−(aq)→SO42−(aq)+Mn2+(aq)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
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Part C
S2O32−(aq)+Cl2(g)→SO42−(aq)+Cl−(aq)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
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3. Balance the following redox reactions that occur in
acidic solution using the half-reaction method.
a. Cr(s) + NO3-(aq) → Cr3+(aq) + NO(g)
b. CH3OH(aq) + Ce4+(aq) → CO2(aq) +
Ce3+(aq)
c. SO32-(aq) + MnO4-(aq) → SO42-(aq) +
Mn2+(aq)
Balance the following oxidation-reduction reaction occurring in
an acidic solution using the half reaction method:
CN1-(aq) + MnO4-(aq) --->
CNO1-(aq) + MnO2(s)
Balance the following redox reactions, in base, using the
half-reaction method. Clearly identify each balanced half-reaction
and the overall balanced equation.
C3H8O2 (a) + Cr2O72– (aq) C3H4O4 (aq) + 2 Cr3+ (aq)
2. Balance the first redox reaction in acidic solution and the
second redox reaction in basic solution.
S + NO3- → SO2 + NO
Cr2O72- + Fe2+ -----> Cr3+ + Fe3+
Balance each of the following redox reactions occurring in
acidic aqueous solution.
art A
K(s)+Cr3+(aq)→Cr(s)+K+(aq)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
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Part B
Cd(s)+Cu+(aq)→Cd2+(aq)+Cu(s)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
Cd(s)+2Cu+(aq)→2Cu+(s)+Cd2+(aq)
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Incorrect; Try Again; 5 attempts remaining
Part C
BrO−3(aq)+N2H4(g)→Br−(aq)+N2(g)
Express your answer as a chemical equation. Identify all of the
phases in your answer.
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#18.37 Balance each of the following redox reactions occurring
in acidic aqueous solution.
A) Cd(s)+Cu+(aq)→Cd2+(aq)+Cu(s)
B) I−(aq)+SO42−(aq)→H2SO3(aq)+I2(s)