Calcium carbonate reacts with an excess of dilute hydrochloric acid and produces carbon dioxide. This reaction is studied in two experiments. The reaction rates are compared by recording the volume of carbon dioxide produced over time in each experiment. Graphs are then drawn to compare the two rates. Which statement about experiments 1 and 2 is correct?
- AExperiments 1 and 2 both slow down as the reaction proceeds.
- BExperiments 1 and 2 must both use acid of the same concentration.
- CExperiments 1 and 2 must have been done at the same temperature.
- DExperiment 2 uses larger lumps of calcium carbonate. All other conditions stay the same.