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Oxygen - Online Term Papers

Oxygen

, symbol O, colorless, odorless, tasteless, slightly magnetic
gaseous element. On earth, is more abundant than any other element.
was discovered in 1774 by the British chemist Joseph Priestley and,
independently, by the Swedish chemist Carl Wilhelm Scheele; it was shown to be
an elemental gas by the French chemist Antoine Laurent Lavoisier in his classic
experiments on combustion.
Large amounts of oxygen are used in high-temperature welding torches, in
which a mixture of oxygen and another gas produces a flame of much higher
temperature than is obtained by burning gases in air. Oxygen is administered to
patients whose breathing is impaired and also to people in aircraft flying at
high ...

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chosen the element "Oxygen" because without Oxygen, human beings
would not be able to live. Oxygen is probably the single most important element
in the world as we know it. With out Oxygen we would not breath, have water, eat
plants.
Oxygen's Electron configuration is 1S2 + 2S2 + 2P4, it's electron dot
symbol is: .
Gaseous oxygen can be condensed to a pale blue liquid that is
strongly magnetic. Pale blue solid oxygen is produced by compressing the
liquid. The atomic weight of oxygen is 15.9994.Oxygen composes 21
percent by volume or 23.15 percent by weight of the atmosphere; 85.8
percent by weight of the oceans and, as a constituent of most rocks and minerals,
46.7 percent by weight of the solid crust of the earth. Oxygen comprises 60
percent of the human body. It is a constituent of all living tissues; almost all
plants and animals, including all humans, require oxygen, in the free or
combined state, to maintain life.3
Three structural forms of ...

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PAPER DETAILS

Added: 7/22/2006 08:11:47 AM
Category: Science & Nature
Type: Premium Paper
Words: 752
Pages: 3

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