Chemicals in the atmosphere
- Created by: kira
- Created on: 03-06-11 14:32
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- 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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