Write the reaction equation: Fe-Fe2O3-FeCl3-Fe (OH) 3-Fe2 (SO4) 3
| June 25, 2021 | education
1) 3Fe + 2O2 → Fe2O3 * FeO (iron scale (mixture of iron (II) and (III) oxide), addition reaction).
2) Fe2O3 + 6HCl → 2FeCl3 + 3H2O (iron (III) chloride; exchange reaction, the reaction proceeds, since a weak electrolyte is formed in the form of water).
3) FeCl3 + 3NaOH → 3NaCl + Fe (OH) 3 (sodium chloride, iron (III) hydroxide; exchange reaction, the reaction proceeds, since a precipitate is formed in the form of iron (III) hydroxide.
4) 2Fe (OH) 3 + 3H2SO4 → Fe2 (SO4) 3 + 6H2O (iron (III) sulfate; exchange reaction, the reaction proceeds, since a weak electrolyte is formed in the form of water).
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