Difference between revisions of "Oxygen"

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Oxygen is a chemical [[element]] vital for life. Under normal conditions it is a colorless odorless [[gas]] consisting of two oxygen [[atom|atoms]] which has the chemical formula O<sub>2</sub>.
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Oxygen is a chemical [[element]] vital for life. Under normal conditions it is a colorless odorless [[gas]] consisting of two oxygen [[atom|atoms]] which has the chemical formula O<sub>2</sub>. This means it is diatomic.
  
 
Approximately 20% of the [[atmosphere]] is made up of oxygen.
 
Approximately 20% of the [[atmosphere]] is made up of oxygen.

Revision as of 15:13, 12 April 2007

Oxygen is a chemical element vital for life. Under normal conditions it is a colorless odorless gas consisting of two oxygen atoms which has the chemical formula O2. This means it is diatomic.

Approximately 20% of the atmosphere is made up of oxygen.

Oxygen in a concentrated form is explosive. It is the component of all combustion reactions and produces carbon dioxide.