How do you define heat? * (1) the average kinetic energy of a substance
(2) the average potential energy of a substance
(3) the total kinetic energy of a substance
(4) the total potential energy of a substance

3 I think

Explanation:

Temprature is the avergae kinetic energy of particles.

so that means it has to be 3

if my answer helps please mark as brainliest.

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.