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A molecule of a compound must be electrically neutral overall. There is only one y atom in the formula, so that the total contribution of charge from y is +2. There are two x atoms, and each of them must have an oxidation number of -1 for a total of -2 to neutralize the charge from y.

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Q: The formula for a compound is represented x2y the oxidation number of y is 2 what is the oxidation number for x?
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