Question

CaC2->C2H2->C6H6->C6H5CH3->C6H5COOH->CO2_>CaCO3

Answer 1

1) CaC2+h2o=c2h2+ca(oh)2    2)3c2h2(над стрелочкой С*)=с6h6    3)C6H6 + CH3Cl(AlCl3 над стрелкой)= C6H5CH3 + HCl      4)C6H5CH3 + [O] = C6H5COOH (окисление KMnO4)   5)2C6H5COOH+15O2=14CO2+6H2O    6) CO2+Ca(oh)2=caco3+h2o

Answer 2

Chemical Reaction Chain

The given sequence represents a series of chemical reactions starting with CaC2 and ending with CaCO3. Let's break down each step in the reaction chain:

1. CaC2 to C2H2: - The first step involves the conversion of CaC2 (calcium carbide) to C2H2 (acetylene). - This reaction is represented by the following chemical equation: ``` CaC2 → C2H2 ``` - The reaction involves the hydrolysis of calcium carbide to produce acetylene gas [[1]].

2. C2H2 to C6H6: - The next step is the conversion of C2H2 (acetylene) to C6H6 (benzene). - This process typically involves the catalytic hydrogenation of acetylene to form benzene [[2]].

3. C6H6 to C6H5CH3: - The third step involves the conversion of C6H6 (benzene) to C6H5CH3 (toluene). - This can be achieved through a process called alkylation, where benzene reacts with methyl chloride in the presence of a catalyst to produce toluene [[3]].

4. C6H5CH3 to C6H5COOH: - The next transformation is the conversion of C6H5CH3 (toluene) to C6H5COOH (benzoic acid). - This can be accomplished through a multi-step oxidation process, where toluene is oxidized to benzoic acid [[4]].

5. C6H5COOH to CO2: - The penultimate step involves the conversion of C6H5COOH (benzoic acid) to CO2 (carbon dioxide). - This can be achieved through combustion or other oxidation processes, where benzoic acid is broken down into carbon dioxide and water [[5]].

6. CO2 to CaCO3: - The final step is the conversion of CO2 (carbon dioxide) to CaCO3 (calcium carbonate). - This process involves the reaction of carbon dioxide with calcium hydroxide to produce calcium carbonate [[6]].

This sequence represents a series of chemical reactions that transform CaC2 into CaCO3 through several intermediate compounds.

Is there anything else you would like to know about these chemical reactions or any other related topic?