Which cation in each set is expected to have the larger (more negative)hydration energy? I.Mg²⁺ or Ca²⁺ II.Li⁺ or Al³⁺ A)Mg²⁺ in set I and Li⁺ in set II B)Mg²⁺ in set I and Al³⁺ in set II C)Ca²⁺ in set I and Li⁺ in set II D)Ca²⁺ in set I and Al³⁺ in set II

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Hydration energy increases with charge density. Mg2+ (smaller, higher charge) in set I and Al3+ (higher charge) in set II have higher charge densities than Ca2+ and Li+, respectively, leading to more negative hydration energies.

Which Cation in Each Set Is Expected to Have the Larger