Chemistry - 2D

2.17

2.18

iron rusts when oxygen and water is involved

2.19

One of the easiest and cheapest ways to prevent corrosion is to use barrier coating like paint, plasti or powder.

galvansing - the process of applying a protective zinc coating to steel or iron, to prevent rusting

2.20

Oxidation - The loss of electrons during a reaction by a molecule.

reduction - Any of…