Question

Why does this liability of alkaline earth metal carbonates and sulfates in water decreases down the group?

Answer 1

The ability of alkaline earth metal cations to hydrate themselves decreases down the group due to decrease in charge density. An important consideration in the solubility of carbonates and sulphates is the overcoming of the lattice enthalpy by the hydration enthalpy.

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Answer 2

hey here is your answer

The ability of alkaline earth metal cations to hydrate themselves decreases down the group due to decrease in charge density. An important consideration in the solubility of carbonates and sulphates is the overcoming of the lattice enthalpy by the hydration enthalpy

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