Question

1

What happens to a substance when it changes state?
Choose all that apply.
The molecules gain or lose energy
The organization of the molecules changes
The molecules do not change

Answer 1

When a substance changes state, its molecules can gain or lose energy and the organization of the molecules changes. However, the molecules themselves do not change.

Step-by-step explanation:

When a substance changes state, several things can happen to the molecules. Firstly, the molecules can gain or lose energy, which is required to break the intermolecular forces holding them together. This energy can come from the surroundings or be supplied to the substance. Secondly, the organization of the molecules changes as they rearrange themselves into a new structure during the phase change. Lastly, it is important to note that the molecules themselves do not change; only their arrangement and energy levels are affected.

Learn more about Changes in state of substances