Here are the responses to the questions based on Priestley's experiments:
Question 1: In Priestley's experiment, what happened to the candle flame in the first experiment in which it was the only thing enclosed in the container?
- Response: It went out (extinguished).
Question 2: In Priestley's second experiment in which both a plant and the candle were enclosed in the container, what occurred?
- Response: The flame persisted longer than the original experiment.
Question 3: Which of the following choices below were proven by Priestley's experiments? Select all that apply.
- Responses:
- A flame requires oxygen to burn
- The process of photosynthesis releases oxygen into the environment
(Note: The other responses related to photosynthesis absorbing oxygen and carbon dioxide being essential to fire were not proven by Priestley’s experiments.)
1 answer