Make the equation: CaCO3- CaO- Ca (OH) 2- CaCO3- CO2

The solution to chemical equations will be like this:

1) CaCO3 → CaO + CO2

Here, the reaction of thermal decomposition of calcium carbonate takes place with the formation of calcium oxide and carbon monoxide (IV). It takes place at a temperature of 900-1200 ° C.

2) CaO + H2O → Ca (OH) 2

Now there is a reaction of interaction of calcium oxide and water with the formation of calcium hydroxide.

3) Ca (OH) 2 + CO2 → CaCO3 + H2O

This is a reaction between calcium hydroxide and carbon monoxide (IV). As a result of the reaction, calcium carbonate and water are formed.

4) CaCO3 → CaO + CO2

And at the end, a reaction of thermal decomposition of calcium carbonate occurs with the formation of calcium oxide and carbon monoxide (IV). It takes place at a temperature of 900-1200 ° C.