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What country was oxygen discovered in?

A:

Quick Answer

Oxygen was first discovered in England by Joseph Priestley in 1774. Up until this time, it was commonly believed that air was one single substance. Priestley correctly identified that air was composed of multiple elements, including oxygen.

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Full Answer

Air is composed of 21 percent oxygen, 78 percent nitrogen and almost 1 percent argon. Oxygen is produced by plants in the process of photosynthesis. This photosynthetic process helped Priestley come to the conclusion air was composed of separate gases.

When Priestley first discovered oxygen he called it dephlogisticated air. The French physicist, Antoine Lavoisier, was responsible for giving the element its current name.

Joseph Priestley also invented carbonated water and the rubber eraser.

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