Write the equation of reactions Ca-CaO-Ca (OH) 2-CaCl2-Ca; Mg- MgO- MgSO4- Mg (NO3) 2
| July 6, 2021 | education
A) 1) 2Ca + O2 → 2CaO (compound reaction);
2) CaO + H2O → Ca (OH) 2 ↓ (compound reaction);
3) Ca (OH) 2 ↓ + 2HCl → CaCl2 + 2H2O (exchange reaction);
4) CaCl2 → Ca + Cl2. (decomposition reaction)
B) 1) 2Mg + O2 → 2MgO (compound reaction);
2) MgO + H2SO4 → MgSO4 + H2O (exchange reaction);
3) MgSO4 + Ba (NO3) 2 → BaSO4 + Mg (NO3) 2 (exchange reaction).
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