Iron corrodes to form an iron oxide. This oxide is commonly called rust. The reaction involves a transfer of electrons from iron to oxygen. Water is commonly slightly acidic due to the carbon dioxide...
The corrosion of iron indicates a chemical change in the metal. Rust (hydrous oxide) is an example of this change that results when iron is exposed to water or damp air. A thin film of oxide forms on...
Rust is essentially oxidation, or a chemical interaction involving oxygen. When oxidation occurs in some elements, a thin film is formed as a result--such as the green layer that copper acquires....