Question

What is rusting? Write chemical equation​

Answer 1

The formation of rust requires iron, water and oxygen. Although it's a complex process, the chemical equation is simply 4Fe + 3O2 + 6H2O → 4Fe(OH)3.

Answer 2

Answer:

Rusting is the common term for corrosion of iron and its alloys, such as steel. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called rust.

The chemical formula for rust is Fe2O3, which is called iron oxide but is also known as ferric oxide.