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23 July, 17:28

Define oxidation, reduction, and oxidation number. Describe how oxidation and reduction affect the oxidation number of an element.

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  1. 23 July, 17:31
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    Oxidation: the loss of electrons

    Reduction: the gain of electrons

    Oxidation number: the charge based on the number of electrons assigned to an atom as compared to the neutral atom

    Explanation:

    The oxidation number of a neutral atom is zero. When the atom is oxidized, it loses electrons (which have a negative charge), so the oxidation number goes up. When the atom is reduced, it gains electron (it gains negative charge), so the oxidation number goes down.
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