# What is the sum of all the oxidation numbers in any compound?

##### 1 Answer
Nov 28, 2016

In any compound the sum of the oxidation numbers is equal to the charge on the compound.

#### Explanation:

And of course if the compound is neutral, then the sum of the oxidation numbers of is neutral. If the compound is an ion, i.e. $C r {O}_{4}^{2 -} , N {O}_{3}^{-} , S {O}_{4}^{2 -}$, the sum of the oxidation numbers is the charge on the ion.

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