Why oxygen rust metal?

Answer 1

Metal forms an oxide in presence of moisture. We call it a rusting...

Answer 2

Oxygen alone does not rust metal. The oxygen in dry air will react and form a thin film of oxide on the surface of the metal, which actually protects it from further corrosion. But when oxygen is combined with water (water or water vapour in the atmosphere) it forms iron hydroxide, which is rust, and which will continue to form and corrode the metal, as long as both oxygen and water are available.

Answer 3

Because rust is just an oxidated form of metal, which means: "rust is the combination of metal and oxygene"

For example Iron: Fe and oxygene makes Fe2O3 (which is rust)

Answer 4

Oxygen + metal = metal oxide (rust)
metal is so dense it doesn't happen very fast

Answer 5

the iron in most metals is often found in the oxidation state Fe(2+). when it comes in contact with an oxidizing agent (like oxygen, who'd of thought), it gets oxidized (loses an electron) to become Fe(3+). it can then form further complexes like iron oxide.

Answer 6

the elelctron shell of the iron promotes the attachement of oxygen......Fi03.

Answer 7

The reaction is spontanious.

Fe(S)+O2(g)-->Fe2O3(s)

Fe203 is called rust.