Question

напишіть рівняння реакцій, за допомогою яких можна здійснити такі перетворення: CaCO3 → CaC2 → HC (потрійний зв'язок) CH → CHBr → CHBr2​

Answer 1

Ответ:

CaCO3 + 4C = CaC2 + 3CO

CaC2 + H2O = H2O + CH#CH

CH#CH+2Br2 = CH(Br)2-CH(Br)2

----

СH#CH → CHBr → CHBr2​

Так не бывает.

Answer 2

Equations for the Given Transformations:

To carry out the given transformations:

1. CaCO3 → CaC2: The transformation of calcium carbonate (CaCO3) to calcium carbide (CaC2) can be achieved through the following reaction:

   CaCO3 + 3C → CaC2 + 3CO
   

This equation represents the reaction between calcium carbonate and carbon to produce calcium carbide and carbon monoxide. [[1]]

2. CaC2 → HC (triple bond) CH: The transformation of calcium carbide (CaC2) to acetylene (HC≡CH) can be achieved through the following reaction:

   CaC2 + 2H2O → HC≡CH + Ca(OH)2
   

This equation represents the reaction between calcium carbide and water to produce acetylene and calcium hydroxide. [[2]]

3. HC (triple bond) CH → CHBr: The transformation of acetylene (HC≡CH) to bromoethylene (CHBr) can be achieved through the following reaction:

   HC≡CH + HBr → CHBr
   

This equation represents the reaction between acetylene and hydrogen bromide to produce bromoethylene. [[3]]

4. CHBr → CHBr2: The transformation of bromoethylene (CHBr) to dibromoethylene (CHBr2) can be achieved through the following reaction:

   CHBr + Br2 → CHBr2
   

This equation represents the reaction between bromoethylene and bromine to produce dibromoethylene. [[4]]

Please note that these equations represent the general reactions involved in the transformations mentioned. The actual reaction conditions and specific reaction mechanisms may vary depending on the experimental setup and desired outcomes.

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