Carry out the chain of the following transformations: a) Fe → Fe2O3 → FeCl3 → Fe (OH) 3 → Fe2O3
| January 16, 2021 | education
Carry out the chain of the following transformations: a) Fe → Fe2O3 → FeCl3 → Fe (OH) 3 → Fe2O3 b) S → SO2 → SO3 → H2SO4 → ZnSO4
A) 1) Fe + 3O2 → 2Fe2O3 (compound reaction);
2) Fe2O3 + 6HCl → 2FeCl3 + 3H2O (exchange reaction);
3) FeCl3 + 3KOH → Fe (OH) 3 ↓ + 3KCl (exchange reaction);
4) 2Fe (OH) 3 ↓ → Fe2O3 + 3H2O (decomposition reaction).
B) 1) S + O2 → SO2 (compound reaction);
2) 2SO2 + O2 → 2SO3 (compound reaction);
3) SO3 + H2O → H2SO4 (compound reaction);
4) H2SO4 + Zn (OH) 2 → ZnSO4 + 2H2O (exchange reaction).
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