Question

give four reason that water is a compound not a mixture

Answer 1

1. water is made up of two elements in a fixed ratio
2. water has totally different properties from the two elements
3. its constituents can be separated only by chemical or electrochemical reactions
4. water is formed by reaction between hydrogen and oxygen.

thats why water is a compound not a mixture

Answer 2

1. all compound are molecules but not all molecules are compounds
2. water is a molecule because It is made from atoms that have been chemically combined
3. It is also a compound because the atoms that make water are not all the same
4. the atoms of hydrogen and oxygen combined with each other to form water