Question

State a reason to prove that water is a compound and not a element.​

Answer 1

Explanation:

Water's melting point and boiling point varies according to external pressure, volume and temperature. Hence one of the physical parameters used to identity water varies. This implies that it is a compound and not an element as for the latter, all of it's properties remain the same under any condition.

Answer 2

Answer:

The reason is that elements consists only one kind of atom but a compound consists of two or more kind of atoms.

Explanation:

Since, water consists of two kinds of atoms that is an atom of Oxygen and two atoms of hydrogen. Therefore water is a compound and not an element