Balancing Redox Equations Worksheet
Grade 11 Chemistry worksheet focusing on balancing redox reactions using the half-reaction method in both acidic and basic solutions.
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Balancing Redox Equations
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Balance the following redox equations using the half-reaction method. Clearly show all steps, including oxidation states, half-reactions, and electron transfer. Indicate whether the solution is acidic or basic as specified.
1. Balance the following redox reaction in acidic solution:
Cr₂O₇²⁻(aq) + C₂H₅OH(aq) → Cr³⁺(aq) + CO₂(g)
2. Balance the following redox reaction in acidic solution:
MnO₄⁻(aq) + SO₂ (g) → Mn²⁺(aq) + HSO₄⁻(aq)
3. Balance the following redox reaction in basic solution:
CN⁻(aq) + MnO₄⁻(aq) → CNO⁻(aq) + MnO₂(s)
4. Balance the following redox reaction in basic solution:
ClO⁻(aq) + CrO₂⁻(aq) → Cl⁻(aq) + CrO₄²⁻(aq)
5. In the reaction Fe²⁺ → Fe³⁺ + e⁻, what is happening to the iron ion?
Oxidation
Reduction
Neutralization
Precipitation
6. In a redox reaction, the reducing agent is oxidized.
True
False
7. Oxidation is the of electrons, while reduction is the of electrons.