2.  Covalent  Carbon always forms 4 bonds  Can form both polar and non-polar compounds  Being organic means you have carbon  Non-electrolytes  Molecular Solids  Low Melting points and Low boiling points

4.  Compounds that are made of just hydrogen and carbon  Form the backbone of many types of organic compounds

6.  Covalent  Polar Bonds but Non-Polar molecules  Soft Solids(Think Butter) or Liquids, or gases at room temperature  Bonds are weak  Contain a lot of energy in the bonds and so they are used as fuels

8.  Hydrocarbons that contain all single Hydrogen and Carbon Bonds  These are SATURATED because they have all of the same bond type (single)  Used primarily for energy  More carbon = more energy  More carbon = higher MP and BP  More carbon = stronger structure