Question

Question

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

Only chemical changes, not physical changes

All physical and chemical changes, including changes that involve gases

Most changes, but not chemical changes that involve gases.

Only physical changes, not chemical changes

Answer 1

The correct response is:

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

The law of conservation of mass states that mass is not created or destroyed in a closed system during any physical or chemical process. This means that the total mass of the reactants equals the total mass of the products, regardless of whether the changes are physical or chemical, and including those that involve gases.