Write the reaction equation: С-Сo2-CaCo3-CaO-Ca (OH) 2-CaCo3-Ca (HCO) 3-CaCo3

1.C + O2 = CO2 (carbon combustion);

2. Ca (OH) 2 + CO2 = CaCO3 + H2O (calcium hydroxide solution absorbs carbon dioxide, the formation of a white precipitate of calcium carbonate);

3. CaCO3 (heating) = CaO + CO2 (calcium carbonate decomposes at a temperature of 800 degrees Celsius, obtaining quicklime);

4. CaO + H2O = Ca (OH) 2 (calcium oxide reacts with water, slaking lime);

5. Ca (OH) 2 + CO2 = CaCO3 + H2O;

6. CaCO3 + H2O + CO2 = Ca (HCO3) 2 (reversible reaction, takes place in a solution of calcium carbonate in the presence of carbon dioxide)