by heating it with a more reactive element; e.g. zinc.
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Iron oxide can be reduced by using a reducing agent such as carbon monoxide or hydrogen gas in a controlled environment with limited oxygen. This process strips oxygen atoms from the iron oxide, producing elemental iron. The reduced iron can then be separated from the remaining products through various techniques.
Carbon, typically in the form of coke or coal, is used to reduce iron oxide (Fe2O3) to iron in the extraction process. The carbon reacts with the oxygen in the iron oxide to form carbon dioxide gas and elemental iron.
The ionic compound FeO is commonly known as iron(II) oxide or ferrous oxide.
No such compound exists. If it did it would be iron VI oxide, but iron cannot reach such a high oxidation state. Perhaps you mean Fe2O3, iron III oxide.
iron oxide
Iron oxide is a compound. It is composed of iron (Fe) and oxygen (O) atoms chemically bonded together in a fixed ratio. The most common forms of iron oxide are FeO (iron(II) oxide) and Fe2O3 (iron(III) oxide).