Balancing Redox Reactions
Chemistry ⇒ Redox Reactions and Electrochemistry
Balancing Redox Reactions starts at 10 and continues till grade 12.
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See sample questions for grade 10
Assign the oxidation number to carbon in CO2.
Assign the oxidation number to chlorine in ClO3-.
Assign the oxidation number to nitrogen in NO3-.
Assign the oxidation number to sulfur in H2SO4.
Balance the following redox reaction in acidic solution: Cr2O72- + SO32- → Cr3+ + SO42-
Balance the following redox reaction in acidic solution: H2O2 + MnO4- → O2 + Mn2+
Balance the following redox reaction in acidic solution: IO3- + I- → I2
Balance the following redox reaction in acidic solution: MnO4- + Fe2+ → Mn2+ + Fe3+
Balance the following redox reaction in acidic solution: NO3- + Cu → NO + Cu2+
Balance the following redox reaction in basic solution: BrO3- + S2O32- → Br- + SO42-
Balance the following redox reaction in basic solution: ClO- + I- → Cl- + IO3-
Balance the following redox reaction in basic solution: MnO4- + C2O42- → MnO2 + CO32-
Explain why balancing redox reactions is important in chemistry.
In the context of redox reactions, what does the term 'half-reaction' mean?
In the reaction 2H2O2 → 2H2O + O2, which element is both oxidized and reduced?
In the reaction: 2Al + 3CuSO4 → Al2(SO4)3 + 3Cu, which element is oxidized?
What is the first step in balancing a redox reaction using the half-reaction method?
