Question

chloromethane (ch₃cl) is used in the production of silicone adhesives. chloromethane and hydrogen chloride (hcl) are produced when methane (ch₄) reacts with chlorine gas (cl₂). which model accurately represents this reaction?

Explanation:

To determine the correct model, we analyze the stoichiometry of the reaction \(CH_{4}+Cl_{2}
ightarrow CH_{3}Cl + HCl\).

• In the first model, there are two \(CH_{4}\) molecules reacting with one \(Cl_{2}\) molecule, which is incorrect as the balanced equation has one \(CH_{4}\) and one \(Cl_{2}\).
• The second model has one \(CH_{4}\) reacting with one \(Cl_{2}\) to form one \(CH_{3}Cl\) and one \(HCl\), which matches the balanced chemical equation \(CH_{4}+Cl_{2}

ightarrow CH_{3}Cl + HCl\).

• The third model has one \(CH_{4}\) reacting with two \(Cl_{2}\) molecules, which is not in line with the stoichiometry of the reaction.

Answer:

The second model accurately represents the reaction \(CH_{4}+Cl_{2}
ightarrow CH_{3}Cl + HCl\) as it follows the correct stoichiometry (one - to - one ratio of reactants \(CH_{4}\) and \(Cl_{2}\) and produces one \(CH_{3}Cl\) and one \(HCl\)).