Question

who discovered oxygen gas​

Answer 1

Explanation:

Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen, but Priestly is usually given credit for the discovery. They were both able to produce oxygen by heating mercuric oxide (HgO). Priestley called the gas produced in his experiments 'dephlogisticated air' and Scheele called his 'fire air'.

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Answer 2

Joseph Priestly

discovered oxygen gas

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