Question

list four reasons to support that water is a compound, not a mixture.

Answer 1

Question:-

List four reason to support that water is a compound, not a mixture.

Explanation:-

Compound:- A compound is a pure substance made when two or more elements combine together in a fixed ratio by mass.

Ex:- Water, NaCl, etc.

Water is a compound not a mixture because it has following properties :-

• Water is a pure substance made up of combination of two elements hydrogen and oxygen.

• Water can not be broken down in to its constituents by any physical means or process.

• Water is made up of hydrogen and oxygen combine together in a fixed ratio by mass 1 : 8.

• Water has a fixed chemical formula. (H2O)Which represents it as 1 mole of water or, 1 molecule of water or, 18 g of water.

Water is a compound form when electric spark is passed through the hydrogen and oxygen.

They combine in the 1: 8 by mass or by atom.

Answer 2

Answer:

1. All compound are molecules but not all molecules are compounds.
2. water is a molecules because It is made from atoms that 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.