Question

what is rusting of iron? what are the conditions necessary for rusting? explain how rusting of iron is a chemical change.​

Answer 1

Answer:

The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur. ... This prevents the metal below from coming into contact with air (containing oxygen).

Answer 2

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.