Question

Which type of water is the most dense?

A.
cold water with low salt content

B.
cold water with high salt content

C.
warm water with no salt

D.
warm, salty water

Answer 1

B, cold with a high salt content, I believe.
Since density is mass divided by volume, adding salt would increase mass.
Temperature is related to kinetic energy and the distance between molecules/atoms of a substance. The hotter the substance, the more distance there is between particles.
Generally cold water is more dense.

Answer 2

Thanks a lot!

Answer 3

You're welcome (: