Reaction equations for the decomposition of bivalent copper hydroxide and ferric hydroxide and aluminum hydroxide.
| January 15, 2021 | education
Bivalent copper, ferric iron and aluminum hydroxides are insoluble (see solubility table). Unlike alkalis (soluble bases), when heated, insoluble hydroxides decompose into metal oxide and water. The valence of the metal in the oxide is the same as in the hydroxide.
Cu (OH) 2 = CuO + H2O (bivalent copper oxide, water),
2 Fe (OH) 3 = Fe2O3 + 3 H2O (ferric oxide, water),
2 Al (OH) 3 = Al2O3 + 3 H2O (aluminum oxide, water).
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