Question

List 5 reasons to support that water is a compound but not a mixture

Answer 1

It can be purified
It has a chemical formula
It has a consistent melting point; mixtures tend to soften before melting.
Its boiling point (at atmospheric pressure) is always the same.
There is only one sort of molecule in it.
However, even pure water is actually a mixture of H2O, H3O+ and OH- ions, and little strings and clusters of H2O molecules joined together by hydrogen bonds.

Answer 2

The following reasons which show that water is a compound are
water has a fixed proportion that is h2o it can't be change
the second one is it is made up of two molecules that is hydrogen and oxygen .
it has a fixed boiling and melting point .