What is true about water that is freezing? a) the change cannot be undone. b) it is going through a physical change. c) it is going through a chemical change. d) the chemical makeup of the water will not remain the same.

B) It is going through a physical change.

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Freezing of water

The solid water can be changed to liquid by heating or lowering the pressure.

The chemical make up of water remains same.

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Corrosion of iron

It can not be reversed.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

yes it is balanced