Question

4
Select all the correct answers.
When wax is heated, it turns into a liquid. How are the wax molecules affected by this change of state?

The molecules gain energy.
The molecules lose energy.
The molecules move closer to one another.
The space between the molecules increases.
The space between the molecules decreases.

Answer 1

Correct answers:
- The molecules gain energy.
- The space between the molecules increases.

Explanation: Heating adds kinetic energy, breaking some of the solid’s rigid structure so molecules move more freely and are, on average, slightly farther apart in the liquid state.