Question

How do water's relative densities as a solid and a liquid differ from that of most other substances?

Answer 1

Answer:

C

Explanation:

You may not live in a part of the country that gets winter. If you did, you'd know the answer to this just be observation.

Rule: Less dense things float on more dense things.

A is incorrect. If the liquid form of water was less dense, it would float on the ice. That's not what happens.

B is not true. Liquid water is denser than solid water. That's why ice floats.

C is the answer.

D is not true. The densities can vary.

Answer 2

Answer: Under normal ambient conditions water is less dense as a solid than as a liquid, so ice floats on water. Most materials are more dense as solids.

Explanation: When water freezes, the molecules do not stack into a close-packed structure. They form a relatively open, honeycomb-like arrangement.