Alkenes

Alkenes are chemical compounds which consist only of hydrogen and carbon atoms and are bonded exclusively by double bonds.

 Chemical formula: C_n H_2n

 Suffix: -ene

 Prefix: Hydrocarbon's prefixes

 Properties:
  - Their melting and boiling points increase with the molar weight.
  - They are less dense than water.
  - They are soluble in non-polar solvents or low polarity.

 Characteristics:
  - Are unsaturated hydrocarbons.
  - Double covalent bond.

 Simplest alkane: Ethene.