Day 225 of 365
August 13
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Chemistry The Chemistry of Rust
Rust is iron oxide formed when iron reacts with oxygen and water. Unlike aluminum oxide, which forms a protective layer, rust is porous and allows corrosion to continue. This costs economies billions annually. Galvanization and paint help protect iron from rusting.
💡 Did you know?
The Statue of Liberty was once copper-colored - its green patina is actually a form of rust!
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