Chemicals in the atmosphere

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  • Created by: kira
  • Created on: 03-06-11 14:32
  • The Earth's atmosphere contains many gases. Some of these gases are elements, e.g. Oxygen (O2), Nitrogen (N2), and Argon (Ar)- they contain more than one type of atom joined together.
  • Most of the gases in the atmosphere are molecular substances.
  • Molecular substances have low melting points and boiling points.
  • Molecular substanes usually exist as…

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