Balancing redox reaction

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Balancing Redox Reactions

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Balance the following redox reactions

1. SO2 (g) + HNO2 (aq) → H2SO4 (aq) + NO (g)

2. Al (s) + H2SO4 (aq) → Al2(SO4)3 (aq) + H2 (g)

3. Au3+ (aq) + I- (aq) → Au (s) + I2 (s)

4. S2- (aq) + I2 (s) → SO42- (aq) + I- (aq)

5. H2O2 (aq) + ClO4- (aq) → O2 (g) + ClO2- (aq)

6. Br2 (aq) + OH- (aq) → Br- (aq) + BrO3- (aq)

7. Mn (s) + HNO3 (aq) → Mn2+ (aq) + NO2 (g)

8. I2 (s) + OCl- (aq) → IO3- (aq) + Cl- (aq)

9. Cr2O72- (aq) + HNO2 (aq) → Cr3+ (aq) + NO3- (aq)

10. CrO42- (aq) + S2- (aq) → Cr(OH)3 (s) + S (s)

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Redox