Write the chemical equations: Fe → FeCl2 → Fe (OH) 2 → Fe (OH) 3 → Fe2O3 → Fe
| September 17, 2021 | education
1) Fe + Cl2 → FeCl2 (compound reaction; iron, chlorine, iron (II) chloride);
2) FeCl2 + 2KOH → Fe (OH) 2 ↓ + 2KCl (exchange reaction; iron (II) chloride, potassium hydroxide, ferum (II) hydroxide, potassium chloride);
3) 4Fe (OH) 2 ↓ + O2 + 2H2O → 4Fe (OH) 3 ↓ (substitution reaction; ferum (II) hydroxide, oxygen, water, ferum (III) hydroxide);
4) 2Fe (OH) 3 ↓ → Fe2O3 + 3H2O (decomposition reaction; ferum (III) hydroxide, ferum (III) oxide, water);
5) Fe2O3 + 3H2 → 2Fe + 3H2O (ferum (III) oxide, hydrogen, iron, water).
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