Which of the following could result from a substance that undergoes a physical change?

A. It changes irreversibly.

B. It undergoes phase change.

C. It's elements composition is altered.

D. its atoms rearrange to form a new molecule.

The answer is: B. It undergoes phase change.

A physical change occurs when a substance changes phase.

For example, evaporization is phase change process in which the water changes from a liquid to a gas (water vapor).

Condensation is phase change process in which the water changes from a gas to a liquid.

If the arrangement of particles is changed, that is chemical change or chemical reaction (new substance is formed).