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+2 for Fe, +4 for C and -2 for each O

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11y ago
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3d ago

The oxidation number of Fe in FeCO3 is +2. This is because the overall charge of the carbonate ion (CO3^2-) is -2, so the iron (Fe) must have an oxidation state of +2 to balance the charge of the compound.

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Q: What is the oxidation number of FeCO3?
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