Jean has a sample of a liquid. if she changes the liquid’s phase by evaporating, freezing, condensing, or melting it, the molecules will spread out, allowing the sample to expand and fill a container of any shape or volume.

Only substance in gas state can spread out, expand or compressed, and fill a container with any shape and volume.

Since it's already given a liquid, so the only correct answer is the phase change from liquid to gas. And the correct term should be EVAPORATING. it is where liquid gain heat and changes into vapor or gas.

Evaporating is a kind of physical change and to heat different types of liquid into gas requires different amount of heat since they may have different heat capacities.

Meanwhile other terms are different state changes, such as freezing, which is from liquid into solid ; condensing, from gas to liquid ; melting, from solid to liquid. None of them changes into gas and therefore they doesn't match the question.

The answer is evaporating.

Jean has a sample of a liquid. If she changes the liquid's phase by Evaporating it, the molecules will spread out, allowing the sample to expand and fill a container of any shape or volume.

Explanation:

Evaporation is a kind of condensation that happens on the surface of a liquid as it turns into the gas state before approaching its boiling point. The enclosing gas must not be immersed with the evaporating matter. Evaporation is a major element of the water cycle and is continually happening throughout the environment.

1.75 is the weight of one medium egg