A student investigated the reaction of magnesium with dilute hydrochloric acid. She measured the volume of gas given off at various times during the reaction. The student carried out the reaction at 25°C using magnesium ribbon. Her results are shown below. The student repeated the experiment using magnesium powder. All other conditions remain the same.
a. How does the rate of reaction with magnesium powder compare with the rate of reaction with magnesium ribbon?
b. On the grid above, draw a line to show how the volume of gas changes when the experiment is carried out at 15°C and all other conditions remain the same.
