Chemistry 0620 · IGCSE · Rate of reaction

Rate of reaction — practice question

The equation for the reaction of magnesium with hydrochloric acid is shown. $\text{Mg} + 2\text{HCl} \rightarrow \text{MgCl}_2 + \text{H}_2$ The rate of this reaction is investigated with the apparatus shown. Which change would increase the rate of reaction?

  • Alowering the temperature of the acid
  • Busing a larger volume of the same hydrochloric acid
  • Cusing less concentrated hydrochloric acid
  • Dusing the same mass of magnesium powder

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