Balancing Redox Reactions Worksheet
Grade 10 Chemistry worksheet covering balancing redox reactions using the half-reaction method in acidic and basic solutions.
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Standards
Balancing Redox Reactions
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Read each question carefully and balance the following redox reactions using the half-reaction method. Show all your work for full credit.
1. Balance the following redox reaction in acidic solution:
Cr₂O₇²⁻(aq) + SO₃²⁻(aq) → Cr³⁺(aq) + SO₄²⁻(aq)
2. Balance the following redox reaction in basic solution:
MnO₄⁻(aq) + C₂O₄²⁻(aq) → MnO₂(s) + CO₃²⁻(aq)
3. In a redox reaction, is the loss of electrons, and is the gain of electrons.
4. When balancing redox reactions in acidic solution, we add H⁺ ions to balance , and H₂O to balance .
5. In basic solutions, after balancing with H⁺ and H₂O, we add ions to both sides to neutralize the H⁺ ions.
6. The oxidation number of an element in its elemental form is always zero.
True
False