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Step1: assign oxidation numbers. Cr2O72- + C2O42- → Cr3+ + CO2 +6/-2 +3/-2 +3 +4/-2 Step2: Separate the overall reaction into two separate half reactions. One will be the oxidation reaction(where the oxidation number increased) and the other will be the
Step1: assign oxidation numbers. Cr2O72- + C2O42- → Cr3+ + CO2 +6/-2 +3/-2 +3 +4/-2 Step2: Separate the overall reaction into two separate half reactions. One will be the oxidation reaction(where the oxidation number increased) and the other will be the
