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key term - Alkenes

Definition

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond (C=C). They are unsaturated compounds with the general formula $C_nH_{2n}$.

5 Must Know Facts For Your Next Test

  1. Alkenes undergo addition reactions, where the double bond opens up to add new atoms or groups.
  2. The simplest alkene is ethene (ethylene), with the chemical formula $C_2H_4$.
  3. In alkenes, the carbon atoms involved in the double bond are sp2 hybridized and have a trigonal planar geometry.
  4. Common reactions involving alkenes include hydrogenation, halogenation, and hydrohalogenation.
  5. The presence of a double bond makes alkenes more reactive than alkanes.

Review Questions

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