Question

CaCO3--->Cao--->Ca(OH)2--->Ca(HCO3)2--->CO2

Answer 1

CaCO3 → CaO + CO2↑
CaO + H2O → Ca(OH)2
Ca(OH)2 + 2CO2 → Ca(HCO3)2
Ca(HCO3)2 при t° → CaCO3 + CO2↑ + H2O
:)

Answer 2

Chemical Reaction: CaCO3 -> CaO -> Ca(OH)2 -> Ca(HCO3)2 -> CO2

The chemical reaction you provided involves the transformation of calcium carbonate (CaCO3) into carbon dioxide (CO2) through a series of intermediate steps. Let's break down each step:

1. CaCO3 -> CaO: - Calcium carbonate (CaCO3) decomposes to form calcium oxide (CaO) and carbon dioxide (CO2) gas. - The reaction can be represented as: CaCO3 -> CaO + CO2. - This reaction is known as thermal decomposition.

2. CaO -> Ca(OH)2: - Calcium oxide (CaO) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2). - The reaction can be represented as: CaO + H2O -> Ca(OH)2. - This reaction is known as hydration.

3. Ca(OH)2 -> Ca(HCO3)2: - Calcium hydroxide (Ca(OH)2) reacts with carbon dioxide (CO2) to form calcium bicarbonate (Ca(HCO3)2). - The reaction can be represented as: Ca(OH)2 + CO2 -> Ca(HCO3)2. - This reaction is known as carbonation.

4. Ca(HCO3)2 -> CO2: - Calcium bicarbonate (Ca(HCO3)2) decomposes to form carbon dioxide (CO2) gas. - The reaction can be represented as: Ca(HCO3)2 -> CO2 + H2O + CaCO3. - This reaction is known as thermal decomposition.

Please note that the reactions mentioned above are simplified representations of the chemical transformations involved. The actual reactions may involve additional factors and conditions.