The chemical equation for rust is:
4Fe + 3O2 + 6H2O → 4Fe(OH)3
Where does the hydrogen come from when burning the iron powder since (presumably) water is not part of the burning process?
Where does the hydrogen come from when burning the iron powder since (presumably) water is not part of the burning process?
Edit - mistook oxides.
Critically, rust forms at much lower temperatures.