Write the reaction equations: Coal – carbon monoxide (IV) – calcium carbonate – calcium bicarbonate

Write the reaction equations: Coal – carbon monoxide (IV) – calcium carbonate – calcium bicarbonate – calcium carbonate – carbon monoxide (IV) – coal (soot).

1. Combustion of coal:

C + O2 = CO2.

2. When carbon dioxide is absorbed by calcium oxide, carbonate is formed:

CaO + CO2 = CaCO3.

3. Bicarbonate is formed as a result of the interaction of carbon dioxide dissolved in water with lime:

CaCO3 + H2O + CO2 = Ca (HCO3) 2.

4. When boiled, decomposition occurs:

Ca (HCO3) 2 = CaCO3 + H2O + CO2.

5. Decomposition on heating:

CaCO3 = CaO + CO2.

6. Combustion of magnesium in carbon dioxide:

CO2 + 2Mg = 2MgO + C.