BRAINCAKEHydration of Metal Ions
Transition metal 2+ ions form octahedral hexaaqua II complexes with water. Transition metal 3+ ions form hexaaqua 3+ ions in water. In both cases water forms six co-ordinate bonds with the central metal ion. Hexaaqua complexes are slightly acidic in water due to their dissociation of water molecules to release H+ ions.
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All 21 lessons in Transition Metals · All AQA A-level Chemistry topics