Metal rusting is a piece of metal such as a bike, and you leave it out in the rain. In a couple weeks, (If it's still out there,) it will be rusty. Rusty is a brown hard piece that sticks to metal....
Rusting is a form of corrosion specific to iron. Rusting is the process of degradation by oxidation of iron metal to an oxide-hydroxide compound. The cation in this compound is Fe (II). The anions...