2.18: Know the Conditions in Which Iron Rusts

RUST: Chemical reaction between Iron, Water and Oxygen to form Iron (III) Oxide

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• Conditions: Oxygen and Water must be present for rust to Occur

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Iron    +    Water    +    Oxygen    →    Hydrated Iron (III) Oxide

Diagram:

                

Diagram showing the Requirements of Oxygen and Water for Rust to Occur