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www.reference.com/science/rusting-7774ca14e52416ee

Rusting is the process in which iron turns into iron oxide. It happens when iron comes into contact with water and oxygen. The process is a type of corrosion that occurs easily under natural conditions.

www.reference.com/article/causes-rust-2af24dcd7e36f203

Rust is the product of a chemical reaction in which iron oxidizes in the presence of an electrolyte. In order to form iron oxide, exposed iron must bond with oxygen, which usually happens when the iron surface gets wet.

www.reference.com/science/chemical-name-rust-c7800224fe218043

Chemical names for rust include iron oxide, ferric oxide and hematite. The substance is also known by its chemical formula, Fe2O3, which represents the two elements--iron and oxygen--that compose rust.

www.reference.com/article/metal-rust-7534d68107d40a78

Not all metal rusts, but the metals that do rust do so because of an oxidation reaction between the metal and water and oxygen. Oxidation is the process by which a substance incorporates oxygen into its molecular structure.

www.reference.com/article/elements-found-rust-b5f22c66db34d1a4

The elements found in rust are iron and oxygen. Rust has a chemical formula of Fe2O3.

www.reference.com/article/rusting-chemical-change-6fb860003e21a580

The formation of rust represents a chemical change. When a chemical change occurs, the substance or substances present at the beginning are no longer present at the end of the change. Once a chemical change occurs, it theoretically cannot be undone.

www.reference.com/science/cause-iron-rust-3db28acdb079b3cc

Rust is caused when iron comes into direct contact with water and oxygen. Technically, rust comes from a chemical reaction between carbon dioxide from the air, water and the iron. Rusting is an oxidation reaction.