Question

what happens as a substance moves from the gas to liquid to solid phase?
the molecules spread out more
the molecules gain energy.
the molecules bounce off of one another and attach to other surfaces
the molecules become more orderly

Explanation:

When a substance transitions from gas to liquid to solid, it loses thermal energy, reducing molecular motion. Gases have randomly moving, widely spaced molecules; liquids have molecules closer with limited movement; solids have molecules arranged in a fixed, ordered structure. This means molecular order increases through these phase changes. The other options are incorrect: molecules spread out less (not more), lose energy (not gain), and do not primarily bounce/attach to surfaces in this phase sequence.

Answer:

The molecules become more orderly