Question

The density of hot and cold water are different mainly because

O the molecules in hot water move more slowly and are slightly closer together.
O the molecules in hot water are larger.
O the molecules in hot water move faster and are slightly further apart.
O the molecules in cold water move faster and are further apart.

Answer 1

Answer: The molecules in hot water move faster and are slightly further apart.

Step-by-step explanation:

There's more space between the molecules, the volume of hot water has fewer molecules in it and weighs a little bit less than the same volume of cold water. So hot water is less dense than cold water.