How many electrons should be added to the reactant to balance the atom – InterviewSolution

1.

How many electrons should be added to the reactant to balance the atom whose oxidation number is changing? Cr2O2−7⟶Cr+3

Answer»

How many electrons should be added to the reactant to balance the atom whose oxidation number is changing?

$C r_{2} O_{7}^{2 -}$ $⟶$ $C r^{+ 3}$

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