Water is a compound not a mixture. Justify this statement by giving two reasons.

Water is a compound and not a mixture. The reasons are the following:

1) It is held tightly through bonds called chemical bonds which is the characteristic of compound and not mixture.

2) It cannot be separated by physical means but can be separated by chemical means.

⇒ Water is formed from a chemical bond, the molecule cannot be separated physically. Water can be separated into hydrogen and oxygen by a chemical reaction.

⇒ Compounds are made up of different elements. Water is made up of hydrogen and oxygen, which are two different elements. Hydrogen and oxygen form a compound known as water.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).