Question

states of matter i quiz (graded) - 9 questions
2 what happens to water molecules when water is boiled on the stove?
a they move slowly
b they move faster
c they get closer together
d their chemical makeup changes

Explanation:

When water is boiled, heat energy is added. This increases the kinetic energy of water molecules, causing them to move faster. The phase - change from liquid to gas occurs due to increased molecular motion, not a change in chemical makeup (it's still H₂O). Also, molecules move farther apart instead of getting closer together as water changes to steam.

Answer:

B. They move faster