Which of the following choices below were proven by priestley's experiments? select all that apply

Answer 1

It appears that there is no specific list of choices provided in your question. However, if you are referring to Joseph Priestley's experiments, particularly those involving gases, here are some key findings he is known for:

1. Discovery of Oxygen: Priestley discovered a gas that increased the burning of a candle, which he later identified as oxygen.
2. Photosynthesis: He demonstrated that plants could produce oxygen by conducting experiments in which he placed mint plants in an enclosed space with a candle and a mouse. He showed that the plant allowed the candle to burn longer and supported the life of the mouse.
3. Dephlogisticated Air: He referred to oxygen as "dephlogisticated air," contributing to the concept of gases and chemistry.

If you provide the specific choices you are asking about, I can help determine which of them relate to Priestley's findings.