Calculating the Amount of Reactants and Products in a Chemical Reaction

Physical Science / Chemical Reactions

Sample Question

Refer to the reaction below.

[%{\mathrm{CH}}_4+2{\mathrm{Cl}}_2\rightarrow{\mathrm{CH}}_2{\mathrm{Cl}}_2+2\mathrm{HCl}%]

Which of the following is the correct mole relationship between [%{\mathrm{CH}}_4%] and [%\mathrm{HCl}%]?

  • [%\frac{1\;\mathrm{mole}\;{\mathrm{CH}}_4}{1\;\mathrm{mole}\;\mathrm{HCl}}%]
  • [%\frac{2\;\mathrm{moles}\;{\mathrm{CH}}_4}{1\;\mathrm{mole}\;\mathrm{HCl}}%]
  • [%\frac{2\;\mathrm{moles}\;{\mathrm{CH}}_4}{2\;\mathrm{moles}\;\mathrm{HCl}}%]
  • [%\frac{1\;\mathrm{mole}\;{\mathrm{CH}}_4}{2\;\mathrm{moles}\;\mathrm{HCl}}%]

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