Write the reaction equations: Al2O3-Al2 (SO4) 3-Al (OH) 3-Al2O3

Let us write down the equations of the reactions described by the chain:
1.Al2O3 + 3SO3 = Al2 (SO4) 3
2.Al2 (SO4) 3 + 6NaOH = 2Al (OH) 3 + 3Na2SO4
3.2Al (OH) 3 = t * C = Al2O3 + 3H2O



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