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Iron (III) oxide, also known as ferric oxide, is a compound made up of two iron atoms bonded with three oxygen atoms. Its chemical formula is Fe2O3 and it occurs naturally as rust.
The process of iron or steel reacting with oxygen in the presence of moisture, resulting in the formation of iron (III) oxide.
Transition Metal: A group of elements that are characterized by their ability to form multiple oxidation states, such as iron.
Corrosion: The gradual destruction of a material due to chemical reactions with its environment.