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Old 11-22-2017, 12:01 AM   #41
pcduck
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Oxygen is written as O2 when there are two oxygen atoms in the molecule. Pure oxygen doesn't generally exist as individual atoms, two oxygen atoms bond together to form an oxygen molecule. This is because oxygen is highly reactive, disconnected atoms have a very strong tendency to form bonds.
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Old 11-23-2017, 04:05 PM   #42
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Trivia -
Yes, the oxygen all aerobes on earth must have continuously, minute by minute 24/7/365 and the same oxygen welders use to cut steel and iron is commonly written simply as (O2), but let’s not forget these; O, O3, O4, O5, O6, O7, O8, O9, O10, O11, O12, O13, O14, O15, O16, O17, O18, O19, O20, O21, O22, O23, and O24.

Facts –
And there’s ambient air composed of a mixture of different elemental gas molecules -- According to NASA, the gases in earths’ the atmosphere include 21% Oxygen O2 (a diatomic molecule, atomic number – 16), Nitrogen 78%, Argon 0.93%, Carbon dioxide 0.04% and trace amounts of neon, helium, methane, krypton, hydrogen and water vapor.
Ozone or Trioxygen O3
Oxozone or Tetraoxygen O4

Did is you know that the earth's crust is made up of oxygen , commonly written simply as (O), actually 46.6 percent by weight (that’s nearly the mass of the earths’ crust we are standing on) and several other elements: silicon, 27.7 percent; aluminum, 8.1 percent; iron, 5 percent; calcium, 3.6 percent; sodium, 2.8 percent, potassium, 2.6 percent, and magnesium, 2.1 percent.

My home is already smelling real good this morning – you all have a great Thanksgiving feast and be especially thankful today if you live in America, the land of opulence and plenty FREE food.
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