Question

which of the following are signs of a chemical change? changes in odor, color, and temperature changes in size, shape, and state of matter changes in state of matter, volume, and mass

Explanation:

A chemical change results in the formation of new substances. Changes in odor, color, and temperature often indicate the creation of new chemical compounds. Changes in size, shape, state of matter, volume, and mass can be physical changes which do not create new substances.

Answer:

changes in odor, color, and temperature