What is the oxidation number of S in H2SO3?

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What is the oxidation number of S in H2SO3?

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Answer 1 · 2018-04-16T17:54:24

$+ 4$ $+4$

Explanation:

We start of by giving the oxidation number for hydrogen and oxygen, since we know these already.
So we have 2 hydrogen which each has a charge of $+ 1$ $+1$ , and we have 3 oxygen which each has a charge of $- 2$ $-2$ . If we cancel these out we would have that sulfur should have a charge of $+ 4$ $+4$ to give a total charge of $0$ $0$ .

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What is the oxidation number of S in H2SO3?

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