3. 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, Na2SO4. 10H2O(l) - solidifies and releases
78.0kJ/mol of energy. Calculate the enthalpy change when 2.50kg of Glauber's salt enters the solid
state? (ans: -605kJ]

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

particle   p is an electron and particle q is a neutron

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!