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Write the necessary conditions for rusting of iron to take place.
The conditions necessary for rusting of iron to take place is:
- presence of air (oxygen)
- presence of water (moisture)
Extra information: Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen.
Here is the word equation for the reaction:
Iron + water + oxygen → hydrated iron(III) oxide.
Fe + H2O + O2 → Fe2O3·H2O
Given below, the picture shows rusting of iron nails.
Galvanization is a method of protecting iron from rusting by coating it with a thin layer of zinc. The zinc coating seals the surface from the environment, preventing oxidation and weathering. It extends the life of steel parts by forming a membrane between the metal and the air, preventing the accumulation of iron oxide on the steel layer.]
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