Where did Joseph Priestly discover oxygen?

Answer 1

In 1772, Priestley made another important discovery. He had placed a shoot of a green plant into a container of water. He then covered the container and lit a candle in it until it completely burned out. Later, Priestley was able to both burn the candle again and keep mice alive in the air (did they have lab mice back then?). Priestley became the first person ever to observe the photosynthesis in plants - the fact that they take in carbon dioxide and release oxygen.

Answer 2

plants can "refresh" air. that is they use the carbon dioxide to make oxygen. so this means that the mouse and the candle can survive in a bell jar with a plant... since the plant fixes the CO2

Answer 3

he found that their are some oxygen elinements present on the earth

Answer 4

Joseph priestly dicovered oxygen in 1774 and carl Wilhelm scheele did the same in 1772 but published his findings in 1777 three years after priestly published his findings

Answer 5

The experiment of Priestley involve the thermal decomposition of mercuric oxide - HgO.

Answer 6

Priestley discovered oxygen by thermal decomposition of Mercury oxide HgO; he tested this gas on a mice and discovered that is more efficient for respiration than air as a mixture.

Answer 7

By heating mercuric oxide.

Answer 8

in the 18th century

Answer 9

1774