• Hydrocarbons are compounds that contain only carbon and hydrogen.
  • Hydrocarbons are the simplest type of carbon-based compounds, but they can vary greatly in size.
  • The smallest hydrocarbons have just one or two carbon atoms.
  • The largest hydrocarbons may have thousands of carbon atoms.
  • Hydrocarbons are nonpolar compounds, so they do not dissolve in water.
  • Hydrocarbons are placed in two different classes: saturated hydrocarbons and unsaturated hydrocarbons.
  • This classification is based on the number of bonds between carbon atoms.
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