Question

A. Balance the following reactions by
oxidation number
Cr2O2^-2(aq) + SO3^-2(aq) ------) Cr^+3(aq) + SO4^-2(aq) (acidic)​

Answer 1

$cr2o {7}^{ - 2}(aq) + 3so {3}^{ - 2}(aq) → 2c {r}^{ + 3}(aq) + 4h2o(aq)$

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