An excess of calcium carbonate is allowed to react with dilute hydrochloric acid. Carbon dioxide formed is recorded at equal time intervals. These findings are given for experiment 1. The experiment is then carried out again, with just one alteration to the reaction conditions. The findings are given for experiment 2. Which alteration is made in experiment 2?
- AThe concentration of the acid is increased.
- BThe volume of acid is increased.
- CThe mass of calcium carbonate is increased.
- DThe calcium carbonate is powdered.