Explain different magnetic properties of solids. What happens when these substances are heated?

Following is the schematic alignment of magnetic moments : Indetify the type of magnetism. What happens when these substances are heated ?

What happens when potassium chlorate is heated?

What happens when phosphoric acid is heated ?

What happens when: Ferrous sulphate crystal are heated.

What happens when : Malonic acid is heated

What happens when PCl_5 is heated?

Explain the general properties of solid covalent compounds ?

What happens when barium azide is heated ?

What happens when KMnO_4 is heated ?

What happens when dihydrogen is passed over heated CuO?