How does iron rust?

1 Answer
Ch
Oct 2, 2017

#4Fe+ 3O_2 +6 H_2 O → 4Fe(OH)_3#

Explanation:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.

Word equation:
iron + water + oxygen → hydrated iron(III) oxide

Chemical equation:
#4Fe+ 3O_2 +6 H_2 O → 4Fe(OH)_3#

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