Write down the reaction equation according to the scheme C- CH4- CO2- Na2CO3- CaCO3- CO2

In order to carry out all the chemical reactions along the above homologous chain, we need to carry out five chemical reactions.

Hydrogen react with carbon. As a result of the interaction, methane is formed.

2 H2 + C = CH4
Methane reacts with oxygen. As a result of the passage of a chemical reaction, carbon dioxide and water are formed.

CH4 + 2 O2 = CO2 + 2 H2O
For the next chemical reaction, we take carbon dioxide, which we received in the previous reaction, and sodium oxide. As a result of this interaction, we get the sodium carbonate salt.

Na2O + CO2 = Na2CO3
Sodium carbonate reacts with calcium chloride salt. As a result of the exchange reaction, we get calcium carbonate salt and sodium chloride salt.

CaCl2 + Na2CO3 = CaCO3 ↓ + 2 NaCl
The decomposition of calcium carbonate into calcium oxide and carbon dioxide (tetravalent carbon monoxide).

CaCO3 = CaO + CO2.