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Cr^2+(aq)=>Cr^3+(aq) + e- 2H^+(aq) +2e^- => H2(g) are these an oxidation half reaction or a reduction? what are the balanced reactions?

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  • Cr^2+(aq)=>Cr^3+(aq) + e- 2H^+(aq) +2e^- => H2(g) are these an oxidation half reaction or a reduction? what are the balanced reactions?


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