Question

C=>CH4=>CO2=>C=>CaC2=>C2H2

Answer 1

С + 2Н2 -(t)-> CH4
CH4 + 2O2 -> CO2 + 2H2O
CO2 + C -> 2CO
CO + CaO -> CO2 + CaC2
CaC2 + 2H2O -> Ca(OH)2 + C2H2

Answer 2

The sequence you provided seems to depict a series of chemical reactions involving carbon (C), methane (CH4), carbon dioxide (CO2), calcium carbide (CaC2), and acetylene (C2H2). Let's break down each step of the reaction:

1. C (Carbon) - This is the starting material for the reactions.
2. CH4 (Methane) - Methane is a hydrocarbon and the main component of natural gas. It is a product of the reaction between carbon and hydrogen.
3. CO2 (Carbon Dioxide) - This is a product of the combustion or burning of methane (CH4) in the presence of oxygen (O2).
4. C (Carbon) - This is likely the result of some other chemical reaction or process where carbon is formed.
5. CaC2 (Calcium Carbide) - This is a compound formed by the reaction of calcium (Ca) with carbon (C).
6. C2H2 (Acetylene) - Acetylene is a hydrocarbon compound that can be produced by the reaction of calcium carbide (CaC2) with water (H2O) or other suitable methods.

The overall sequence seems to describe a series of chemical transformations involving carbon and its compounds. However, the specific details of the reactions and conditions involved in each step are not provided in the given sequence. If you have any specific questions about any of these reactions or need more detailed information, feel free to ask!