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What can make a metal rust?

April 26, 2017Chemistry Mathematics metal rust

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What can make a metal rust?

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If you emerge certain metals in water for very long periods of time they will eventually rust when they are exposed to the air again you will notice the rust.

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Metal needs two things to rust: oxygen and moisture (water or water vapour in the atmosphere). Rust on iron is a mixture of various iron hydroxides, not just iron oxide.