How are gases different from liquids and solids?

gases float all around and solids and liquids are more still

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

c is the answer because when something is left after something evaporates that shows the chemical change.