Extra redox problems
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This document provides additional practice problems for balancing oxidation-reduction reactions in acidic and basic solutions. The problems cover reactions involving silver, zinc, chromium, phosphorus, manganese, chlorine, iron, hydrogen peroxide, and copper species. Balanced equations are provided as answers for each reaction.
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Extra redox problems
- 1. Oxidation-Reduction Balancing Additional Practice Problems Acidic Solution 1. Ag + NO3 - → Ag+ + NO 2. Zn + NO3 - → Zn2+ + NH4 + 3. Cr2O7 2- + C2H4O → C2H4O2 + Cr3+ 4. H3PO2 + Cr2O7 2- → H3PO4 + Cr3+ Basic Solution 1. MnO4 - + C2O4 2- → MnO2 + CO2 2. ClO- + Fe(OH)3 → Cl- + FeO4 2- 3. HO2 - + Cr(OH)3 → CrO4 2- + OH- 4. N2H4 + Cu(OH)2 → N2 + Cu
- 2. Oxidation-Reduction Balancing Additional Practice Problems Acidic Solution 1. Ag + NO3 - → Ag+ + NO Answer: 4H+ + 3Ag + NO3 - → 3Ag+ + NO + 2H2O 2. Zn + NO3 - → Zn2+ + NH4 + Answer: 10H+ + 4Zn + NO3 - → 4Zn2+ + NH4 + + 3H2O 3. Cr2O7 2- + C2H4O → C2H4O2 + Cr3+ Answer: 8H+ + Cr2O7 2- + 3C2H4O → 3C2H4O2 + 2Cr3+ + 4H2O 4. H3PO2 + Cr2O7 2- → H3PO4 + Cr3+ Answer: 16H+ + 3H3PO2 + 2Cr2O7 2- → 3H3PO4 + 4Cr3+ + 8H2O Basic Solution 1. MnO4 - + C2O4 2- → MnO2 + CO2 Answer: 4H2O + 2MnO4 - + 3C2O4 2- → 2MnO2 + 6CO2 + 8OH- 2. ClO- + Fe(OH)3 → Cl- + FeO4 2- Answer: 4OH- + 3ClO- + 2Fe(OH)3 → 3Cl- + 2FeO4 2- + 5H2O 3. HO2 - + Cr(OH)3 → CrO4 2- + OH- Answer: OH- + 3HO2 - + 2Cr(OH)3 → 2CrO4 2- + 5H2O 4. N2H4 + Cu(OH)2 → N2 + Cu Answer: N2H4 + 2Cu(OH)2 → N2 + 2Cu + 4H2O