Write down the reaction equations with which you can carry out the following transformations

| September 15, 2021 | education

Write down the reaction equations with which you can carry out the following transformations: С = X = H2CO3 = CaCO3 = Y = Ma2CO3. Determine substances X and Y, if the reaction to obtain substance X is a compound reaction, and the reaction to obtain substance Y is a decomposition reaction

In order to carry out the entire chain of reactions and find unknown substances, we need to carry out five reactions.

The first reaction is the interaction of carbon and oxygen, with the formation of carbon dioxide.

C + O2 = CO2
The second reaction is the reaction of obtaining carbonic acid from carbon dioxide and water. Carbonic acid is unstable and decomposes into tetravalent carbon monoxide and water.

CO2 + H2O = H2CO3
The next reaction is the interaction of carbonic acid and calcium with the formation of calcium carbonate and hydrogen.

H2CO3 + Ca = CaCO3 + H2

Dissociation reaction of calcium carbonate to calcium oxide and carbon dioxide.

CaCO3 = CaO + CO2
Add magnesium oxide to tetravalent carbon monoxide and obtain the salt magnesium carbonate.

MgO + CO2 = MgCO3.



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