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The name of that compound is Iron (III) Oxide.

The reason you must include the "(III)" is because Iron (Fe) has two possible charges, 2+ and 3+.

If it was Iron (II) Oxide, the formula would be FeO. This is because Iron would have a 2+ charge, and the Oxygen would have a 2- charge, so it would bond equally.

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14y ago

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