Question

CH₂ → CO₂ → CaCO3 → Ca(HCO3)2 CaCO3.

Answer 1

Объяснение:

СН4 +2О2->СО2 +2 Н2О

CO2+CaO=CaCO3

CaCO3+CO2+H2O=Ca(HCO3)2

5Ca(HCO3)2(t)=CaCO3+CO2+H2O

Answer 2

Chemical Reaction Process:

The given chemical reaction involves the transformation of CH₂ into CO₂, then into CaCO3, and finally into Ca(HCO3)2. Let's break down the reaction step by step.

1. Conversion of CH₂ to CO₂: - The first step involves the conversion of CH₂ to CO₂. This likely refers to the combustion of methane (CH4) to produce carbon dioxide (CO2) and water (H2O). - The balanced chemical equation for this reaction is: ``` CH4 + 2O2 → CO2 + 2H2O ``` - This equation represents the combustion of methane in the presence of oxygen to produce carbon dioxide and water.

2. Formation of CaCO3: - The next step in the given sequence is the formation of calcium carbonate (CaCO3). - The balanced chemical equation for the formation of calcium carbonate is: ``` Ca(OH)2 + CO2 → CaCO3 + H2O ``` - This equation represents the reaction between calcium hydroxide and carbon dioxide to produce calcium carbonate and water.

3. Conversion of CaCO3 to Ca(HCO3)2: - The final step involves the conversion of calcium carbonate (CaCO3) to calcium bicarbonate (Ca(HCO3)2). - The balanced chemical equation for this reaction is: ``` CaCO3 + CO2 + H2O → Ca(HCO3)2 ``` - This equation represents the reaction of calcium carbonate with carbon dioxide and water to produce calcium bicarbonate.

Conclusion: The given chemical reaction sequence involves the conversion of methane to carbon dioxide, followed by the formation of calcium carbonate, and finally the conversion of calcium carbonate to calcium bicarbonate. Each step represents a specific chemical transformation governed by balanced chemical equations.