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CH1012
2A HYDROXIDES
• Be(OH)2 and Mg(OH)2 are quite insoluble in
water and can thus be precipitated from
aqueous solutions.
water and can thus be precipitated from
aqueous solutions.
• The insoluble
nature of these hydroxides
reflects their covalent character.
reflects their covalent character.
• Ca to
Ba hydroxides are soluble in water.
Solubility: ionic salts generally dissociate
in water (to form electrolyte solutions)
whereas non-ionic compounds
must solvate as whole molecules.
in water (to form electrolyte solutions)
whereas non-ionic compounds
must solvate as whole molecules.
