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The oxidation number for Co in CoO is +2. This is because oxygen typically has an oxidation number of -2, so by setting up an equation Co + (-2) = 0, we find that Co is in the +2 oxidation state in CoO.

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What is the oxidation number of HClO?

Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.


What is the oxidation number of acetate?

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