When a substance changes from one phase to another, which of the following occurs? A.
The substance loses or gains heat.

B.
The average kinetic energy of the substance changes.

C.
The temperature of the substance changes.

D.
The molecular motion of the substance changes.

B

Explanation:

The average kinetic energy of the Substance changes.

yes definetly because you are using energy

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.