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Names and Uses of 10 Gases


Helium gas is used to fill balloons to make them float.

Helium gas is used to fill balloons to make them float.

Pioneer Balloon Company, public domain

A gas is a form of matter that does not have a defined shape or volume. Gases can consists of a single element, such as hydrogen gas (H2), or may be a compound, such as carbon dioxide (CO2), or a mixture of several gases, such as air. Here is a list of 10 gases and their uses.

  1. oxygen (O2) : medical use, welding
  2. nitrogen (N2): fire suppression, provide inert atmosphere
  3. helium (He): balloons, medical equipment 
  4. argon (Ar): welding, provide inert atmosphere for materials
  5. carbon dioxide (CO2): carbonate soft drinks
  6. acetylene (C2H2): welding 
  7. propane (C3H8): fuel for heat, gas grills
  8. butane (C4H10): fuel for lighters and torches
  9. nitrous oxide (N2O): propellant for whipped topping, anesthesia 
  10. freon (various chlorofluorocarbons): coolant for air conditioners, refrigerators, freezers

More About Gases

Gases Study Guide
Properties of Ideal Gases
Noble Gases

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