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Chemistry
Aleena Day
5 October, 14:05
How to determine oxidation numbers
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Kamora Hopkins
5 October, 14:47
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1. The oxidation number of a free element is always 0.
2. The oxidation number of a monatomic ion equals the charge of the ion.
3. The oxidation number of H is + 1, but it is - 1 in when combined with less electronegative elements.
4. The oxidation number of O in compounds is usually - 2, but it is - 1 in peroxides.
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