2)2 Fe(OH)3 +3 H2SO4 = Fe2(SO4)3 + 6H2O (сульфат железа, вода)
3) 2K + 2H2O = 2KOH + H2
3KOH + FeCl3 = Fe(OH)3 + 3KCl
2Fe(OH)3 = Fe2O3 + 3H2O
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2)2 Fe(OH)3 +3 H2SO4 = Fe2(SO4)3 + 6H2O (сульфат железа, вода)
3) 2K + 2H2O = 2KOH + H2
3KOH + FeCl3 = Fe(OH)3 + 3KCl
2Fe(OH)3 = Fe2O3 + 3H2O