Write the reaction equations for the interaction of aluminum and zinc oxides with sulfuric acid and potassium hydroxide.

Al2O3 + 3H2SO4 = Al2 (SO4) 3 + 3H2O
ZnO + H2SO4 = ZnSO4 + H2O
Al2O3 + 2KOH = 2KAlO2 + H2O (at a temperature of 900-1000 ° C)
ZnO + 2KOH = K2ZnO2 + H2O (500-600 ° C)



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