Question

lesson 42 - classification of materials
changes between states of matter are often which?
(1 point)
physical changes
chemical changes
neither
both

Explanation:

A physical change is a change in which no new substances are formed. Changes between states of matter (e.g., melting of ice (solid to liquid), boiling of water (liquid to gas)) do not create new substances. In contrast, a chemical change results in the formation of new substances. Since state - change processes like melting, freezing, vaporization, condensation, etc., do not form new substances, they are physical changes.

Answer:

physical changes