Some ionic compounds are hydrates - solid compounds to which is bound a specific percentage of water. Some hydrates melt when heated and release energy when they solidify. For example, at
32°C, liquid Glauber's salt - sodium sulphatedecahydrate, Na2S04. 10H,0(1) - solidifies and releases 78.0 KJ/mol of energy. Calculate the enthalpy change when 2.50kg of Glauber's salt enters the solid
state?

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.

answer: mole of the gas

answer: mole of the gasexplanation:

answer///carbon;