How to find Oxidation number
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by divide them by 2 and 5 5
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Explanation:
➡️The oxidation number of a free element is always 0.
➡️The oxidation number of a monatomic ion equals the charge of the ion.
➡️The oxidation number of H is +1, but it is -1 in when combined with less electronegative elements.
➡️The oxidation number of O in compounds is usually -2, but it is -1 in peroxides.
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