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  • Rusting
    • Corrosion of iron
    • Protection
      • Galvanising:
        • iron/steel with zinc because it's more reactive
      • Sacractional protection:
        • when a more reactive metal is used to protect the iron. The oxygen and water reacts with this metal instead
      • Coating with oil or grease
      • Coat with paint
      • Electroplate with another metal
      • Alloy with other metals
      • Coat with a layer of plastic
    • Corrosion: metal+oxygen =metal oxide
    • The layer of oil stops air entering
    • Water is boiled to remove the air
    • Anhydrous calcium chloride added to absorb water


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