Question

CaC2->C2H2->C2H4->CO2

Answer 1

CaC2+2H2O=C2H2+Ca(OH)2
C2H2+H2=C2H4
C2H4+3O2=2CO2+2H2O

Answer 2

Решение в приложении

Answer 3

The series of chemical reactions you've listed appears to involve the transformation of calcium carbide (CaC2) into acetylene (C2H2), then into ethylene (C2H4), and finally into carbon dioxide (CO2). Let me provide a brief explanation of each step:

1. CaC2 -> C2H2: This reaction involves the decomposition of calcium carbide (CaC2) to produce acetylene (C2H2). The reaction can be represented as: CaC2 + 2H2O -> 2C2H2 + Ca(OH)2

   In this reaction, calcium carbide reacts with water to yield acetylene gas and calcium hydroxide.

2. C2H2 -> C2H4: This reaction involves the conversion of acetylene (C2H2) into ethylene (C2H4). One way to do this is through a process called hydrogenation, where hydrogen gas (H2) is added to acetylene. The reaction can be represented as: C2H2 + H2 -> C2H4

   In this reaction, acetylene undergoes a chemical reaction with hydrogen gas to form ethylene.

3. C2H4 -> CO2: The final step involves the complete combustion of ethylene (C2H4) to produce carbon dioxide (CO2). This reaction typically requires oxygen (O2) for complete combustion and can be represented as: C2H4 + 3O2 -> 2CO2 + 2H2O

   In this reaction, ethylene reacts with oxygen to produce carbon dioxide and water.

So, in summary, these reactions describe the transformation of calcium carbide into carbon dioxide via the intermediates acetylene and ethylene. These reactions have various industrial applications, including the production of acetylene and chemicals derived from it, as well as the combustion of hydrocarbons for energy production.