Balance the following redox equations by the ion-electron half-reaction method: (a) (acid solution): Cr2O7 2- + Fe2+ Cr3+ + Fe3+ (b) (acid…

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2. Balance the following redox equations by the ion-electron half-reaction method:

(a) (acid solution): Cr2O7 2- + Fe2+ → Cr3+ + Fe3+

(b) (acid solution): I- + NO2 – → I2 + NO (g)

(c) (basic solution): CN- + CrO4 2- → OCN- + Cr(OH)4 –

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