2Fe(OH)3 =(t) Fe2O3 +3H2O -разложение.
Fe2O3 +6HCl=2FeCl3+3H2O -обмен.
FeCl3 +3NaOH =Fe(OH)3+3NaCl-обмен
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2Fe(OH)3 =(t) Fe2O3 +3H2O -разложение.
Fe2O3 +6HCl=2FeCl3+3H2O -обмен.
FeCl3 +3NaOH =Fe(OH)3+3NaCl-обмен