Write the reaction equation: Ca (OH) 2 -CaCO3- CaH (CO3) 2- CaCO3-CaO-CaCl

We obtain the following reaction equations corresponding to the chain of transformations given below:

Ca (OH) 2 → CaCO3 → CaH (CO3) 2 → CaCO3 → CaO → CaCl2:

1) Ca (OH) 2 + Na2CO3 → CaCO3 + 2NaOH;

2) CaCO3 + CO2 + H2O → Ca (HCO3) 2;

3) Ca (HCO3) 2 → CaCO3 ↓ + CO2 + H2O;

4) CaCO3 → CaO + CO2;

4) CaO + 2HCl → CaCl2 + H2O.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.