Question

Ca-> CaCi2-> C2H2 ->CO2 ->MgCO3->

Answer 1

• Во второй реакции невозможно получение ацетилена. Немного изменил ход реакции.
1) Ca + 2C = CaC₂
2) CaC₂ + 2H₂O = C₂H₂ + Ca(OH)₂
3) 2C₂H₂ + 5O₂ = 2H₂O + 4CO₂↑
4) CO₂ + MgO = MgCO₃

Answer 2

The chemical reactions you've provided involve the transformation of calcium (Ca) into various compounds. Here's the breakdown of each step:

1. Ca → CaCl2 (Calcium reacts with chlorine gas to form calcium chloride) Note: The correct chemical formula for calcium chloride is CaCl2, not CaCi2 as you mentioned.

2. CaCl2 → C2H2 (Calcium chloride reacts with water to produce acetylene gas) Note: Acetylene gas has the chemical formula C2H2.

3. C2H2 → CO2 (Acetylene gas undergoes combustion to produce carbon dioxide gas) Note: The combustion reaction of acetylene results in the formation of carbon dioxide (CO2) and water (H2O) as products.

4. CO2 → MgCO3 (Carbon dioxide reacts with magnesium hydroxide or magnesium carbonate to form magnesium carbonate) Note: The reaction between carbon dioxide and magnesium hydroxide (or magnesium carbonate) leads to the formation of magnesium carbonate (MgCO3).

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