Can you complete the reaction? Also, if the species can ionize, show the reaction in a net ionic reaction. Al 2 O 3 + 2NaOH 2NaAlO 2 + H 2 O [ Check the balance ] Aluminum oxide react with sodium hydroxide to produce sodium aluminate and water. Aluminum oxide react with sodium hydroxide and water Al 2 O 3 + 2NaOH + 3H 2 O → 2Na [Al (OH) 4] [ Check the balance ] Aluminum oxide react with sodium hydroxide and water to produce sodium tetrahydroxoaluminate. This reaction takes place at a temperature of 900-1100°C. Crystalline Al2O3 at room temperature is hardly soluble in any solvent, even concentrated acid or alkali, for kinetic reasons. Only amorphous Al (OH)3 may be soluble. Colloidal aluminum oxide is added to excess sodium hydroxide. Al2O3 + NaOH --> ?