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30 May, 15:01

What is the oxidation number of sulfur in CaSO3 (3 is a subscript) ?

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  1. 30 May, 15:27
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    It's + 6

    Explanation:

    Oxidation number refers to the total number of electrons gained or lost during a chemical reaction.

    In the example above sulphur has an oxidation number of + 6 while the oxidation number for the calcium in CaSO4 is + 2 the oxidation number for oxygen is - 2.
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