Calcium carbonate to form calcium oxide and carbon dioxide?

Answer 1

Calcium carbonate is heat at very high temperatures (near 1000°C) and it decomposes into Calcium oxide and Carbon dioxide:

CaCO3 --Δ--> CaO + CO2

When water is added to Calcium oxide, the Calcium hydroxide is formed:

CaO + H2O ----> Ca(OH)2

This can be again converted back to Calcium carbonate, by blowing Carbon dioxide through the solution. The white precipitate is Calcium carbonate:

Ca(OH)2 + CO2 ----> CaCO3 + H2O

Answer 2

This one's easy--just apply sufficient heat to CaCO3 to cleave the molecule, forming CaO and CO2. The process is commonly used for manufacture of quicklime, cement, etc. The process has been utilized for cement manufacture for at least 2000 years.

Answer 3

When heated, calcium carbonate decomposes into calcium oxide and carbon dioxide gas. The chemical equation for this reaction is: CaCO3 (s) -> CaO (s) + CO2 (g). This reaction is commonly used in industries like cement production and agriculture.

Answer 4

Heat is all that is required. CaCO3 + heat = CaO + CO2

Answer 5

Passing carbon dioxide though a calcium hydroxide solution will form calcium carbonate.

Ca(OH)2 + CO2 --> CaCO3 + H2O

Answer 6

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