Stoichiometry
Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.

Chloride
Thiosulphate
Bisulphite
Carbonate (monohydrate)

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Stoichiometry
Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because

Only OH⁻ and H⁺ ions react in every case
The salt formed does not hydrolyse
The strong base and strong acid reacts in aqueous solution
The strong base and strong acid reacts completely

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