Explanation:
  Natural gas, Methane = CH₄
  Chlorine gas = Cl₂
  Carbon tetrachloride = CCl₄
The chemical equation:
     CH₄ + Cl₂     →       CCl₄   +  HCl
               sunlight
*the reaction above is unbalanced in that the law of conservation of mass has not been obeyed
The reaction above involves a series of substitution reaction in which chlorine becomes substituted in the reaction.
Learn more:
Nucleophilic substitution https://brainly.com/question/11220194
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