If you move a substance from one container to another and its volume changes oh, the substance is a? a) solid b) liquid c) gas d) both b and c

ANSWER:

The correct option is C: gas. When a gas is transferred from one container to another, its volume changes.

EXPLANATION:

The main reason is gases do not have a fixed volume. The volume of any gas depends on the container in which it is put. Gases have large inter-molecular spaces and can easily flow.

This is in contrast to liquids and solids that have a fixed volume. "Liquids" take the "shape of the container" but their volume doesn't depend on the container.  

b.