Rust
(→What causes rust?) |
(→What is rust?) |
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==What is rust?== | ==What is rust?== | ||
| − | Rust is the common name for '''an''' iron oxide. An oxide is a chemical compound containing | + | Rust is the common name for '''an''' iron oxide. An oxide is a chemical compound containing oxygen and other elements. Oxides are formed when elements come into contact with air, through a process known as oxidation. Oxides are common, forming most of the earth's crust. When iron (or steel, which contains mostly iron) is exposed to air, it combines with the oxygen in the air, and forms the iron oxide known as rust. |
Rust is iron plus oxygen. | Rust is iron plus oxygen. | ||
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