необходимо уравнять коэффициенты: Na(Al(OH)4) - Al2O3 + NaOH + H2O Na(Al(OH)4) + H2SO4 - Na2SO4 + Al2(SO4)3 + H2O
2Na[Al(OH)4] = Al2O3 + 2NaOH + 3H2O
2Na[Al(OH)4] + 4H2SO4 = Na2SO4 + Al2(SO4)3 + 8H2O
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2Na[Al(OH)4] = Al2O3 + 2NaOH + 3H2O
2Na[Al(OH)4] + 4H2SO4 = Na2SO4 + Al2(SO4)3 + 8H2O