Metal Hydroxide

Key Stage 3

Meaning

A Metal Hydroxide is a basic metal compound made of one or more Metal atoms and one or more Hydroxide ions.

About Metal Hydroxides

Metal Hydroxides have a pH greater than 7

All Metal Hydroxides dissolve in water to make an alkali.

Examples

Group 1 Metal Hydroxides	Group 2 Metal Hydroxides	Transition Metal Hydroxides	Group 3 Metal Hydroxides
Lithium Hydroxide: LiOH Sodium Hydroxide: NaOH Potassium Hydroxide: KOH Rubidium Hydroxide: RbOH Caesium Hydroxide: CsOH	Beryllium Hydroxide: Be[OH]2 Magnesium Hydroxide: Mg[OH]2 Calcium Hydroxide: Ca[OH]2 Strontium Hydroxide: Sr[OH]2 Barium Hydroxide: Ba[OH]2	Chemical Formulae may vary for transition metals. Titanium Hydroxide: Ti[OH]4 Manganese Hydroxide: Mn[OH]2 Iron Hydroxide: Fe[OH]2 Copper Hydroxide: Cu[OH]2 Zinc Hydroxide: Zn[OH]2	Boron Hydroxide: B[OH]3 Aluminium Hydroxide: Al[OH]3 Gallium Hydroxide: Ga[OH]3 Indium Hydroxide: In[OH]3

References

AQA

Metal hydroxides, reaction with acids, pages 111-12, 281, GCSE Chemistry, Hodder, AQA

Metal hydroxides, reaction with acids, pages 213-14, 248, GCSE Combined Science Trilogy 1, Hodder, AQA

OCR

Metal hydroxides, pages 149, 272, Gateway GCSE Chemistry, Oxford, OCR