Balance the following Redox Equations in Basic Mediums. Redox Reactions in Basic Solution 1. Al(s) + ...

Question

Question

Balance the following Redox Equations in Basic Mediums.

Redox Reactions in Basic Solution

1. Al(s) + MnO₄¯ (aq) ¾® MnO₂(s) + Al(OH)₄¯ (aq)

2. NO₂¯ (aq) + Al(s) ¾® NH₃(aq) + AlO₂¯ (aq)

3. Cr(s) + CrO₄^2-(aq) ¾® Cr(OH)₃(s)

Note: Cr(OH)₃ is found in BOTH half reactions!

4. Cl₂(aq) + Br₂(l) ¾® OBr¯ (aq) + Cl¯ (aq)

5. S₈(aq) + MnO₄¯ (aq) ¾® SO₄^2-(aq) + MnO₂(s)

Answer 1

Answer #1

1. Al(s) + MnO4^-(aq) + 2H₂O = MnO₂(s) + Al(OH)₄^- (aq)

2. NO₂^-(aq) + 2Al(s) + OH^- + H₂O = NH₃(aq) + 2AlO₂^-(aq)

3. Cr(s) + CrO₄^2-(aq) + 4H₂O = 2Cr(OH)₃(s) + 2OH^-

4. Cl₂(aq) + Br₂(aq) +4OH^- = 2OBr^-(aq) + 2Cl^-(aq) + 2H₂O

5. S₈(aq) + 16MnO₄^-(aq) = 8SO₄^2-(aq) + 16MnO₂

Answer 2

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