How many joules of heat are needed to raise the temperature of 40.0 g of aluminum from 20°C to 120°C, if the specific heat of aluminum is 0.95 J/g°C? A.) 572 J
B.) 3800 J
C.) 4560 J
D.)0.95

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.

what is the question here. i think you messed up.