A chemist places a sample of dilute aqueous hydrochloric acid into beaker 1. She adds zinc and measures the rate at which hydrogen gas is produced. She then places a different sample of dilute aqueous hydrochloric acid into beaker 2. She adds a different sample of zinc and measures the rate at which hydrogen gas is produced. The reaction in beaker 2 happens faster than the reaction in beaker 1. Which factors could account for this observation?
- A1, 2 and 3 are correct
- B1 and 2 only are correct
- C2 and 3 only are correct
- D1 only is correct