Wednesday, January 29, 2014

Oxygen

Oxygen OXYGEN Oxygen is the most abundant federal agent on the earth. It makes up 23 portion of air, 89 percent of water, and about 46 percent of crustal rock It also comprises 60 percent of the human body. Oxygen is an essential element for survival. Without it, we would not be here today. In this report, you will learn how nuclear number 8, in its many forms, is very important. Oxygen was number one discovered in 1774 by the British chemist Joseph Priestley, when he decomposed mercury II oxide into its elements by heating it. Karl Wilhelm Scheel, a Swedish chemist, discovered it when he heated manganese dioxide with concentrated sulfuric acid.. French chemist, Antoine Laurent Lavoisier, turn up it was an elemental gas, through his experiments on combustion. He also gave oxygen its name. In 1929, W.F. Giaque and H.L. Johnston announced the breakthrough of t wo isotopes of oxygen, with mass numbers of 17 and 18. Oxygen is a colorle...If you want to get a full essay, order it on our website: OrderEssay.net

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