Question

explain how you would prove that air contains Oxygen and Carbon dioxide oxide​

Answer 1

Answer:

Try to burn sawdust in a pure nitrogen atmosphere. ... So there is something in the air that makes fire possible, and when it is not there, fire cannot burn. This is the type of experiment that was originally done to discover oxygen, and oxygen was the name given to the part of air that allows things to burn.

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Answer 2

Answer:

If you have access to a supply of bottled nitrogen compressed gas, evacuate the bell jar and fill it with nitrogen. Try to burn sawdust in a pure nitrogen atmosphere. This is the type of experiment that was originally done to discover oxygen, and oxygen was the name given to the part of air that allows things to burn.

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