Which changes to matter are described by the law of conservation of mass? (1 point)

Question

Only physical changes, not chemical changes

All physical and chemical changes, including changes that involve gases

Only chemical changes, not physical changes

Most changes, but not chemical changes that involve gases.

Answer 1

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction or physical change. Therefore, the correct answer is:

All physical and chemical changes, including changes that involve gases.