Dilute hydrochloric acid is allowed to react with excess calcium carbonate, and the overall volume of gas is recorded at regular time intervals. The outcome is represented on the graph by line W. The experiment is carried out again, but with one alteration. The outcome of the second experiment is represented on the graph by line X. What alteration is made in the second experiment?
- AA catalyst is added.
- BThe calcium carbonate is broken into smaller pieces.
- CThe concentration of the dilute hydrochloric acid is increased.
- DThe temperature of the dilute hydrochloric acid is decreased.