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Alkenes and Alkynes

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Alkenes

An alkene is a hydrocarbon with one or more carbon-carbon double covalent bonds. What is the simplest alkene? What is the hybridization of each carbon atom?

The general formula for alkenes is CnH2nAlkenes follow the same naming rules as alkanes, except that the suffix is -ene and you use a number to indicate the location of the double bond. How would you name the following alkenes?

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[Figure1]

Nomenclature of dienes

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[Figure2]

Alkenes are also unsaturated hydrocarbons, whereas alkanes are saturated. What is an unsaturated hydrocarbon?

Alkynes

An alkyne is a hydrocarbon with one or more carbon-carbon triple covalent bonds. What is the simplest alkyne? What is the hybridization of each carbon atom?

The general formula of alkynes with one triple bond is CnH2n-2. Are alkynes saturated or unsaturated?

Using the same naming system as alkenes and alkanes but with the suffix -yne, how would you name the following alkynes?

Ethyne is the simplest alkyne

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[Figure3]

Example of another alkyne

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[Figure4]

You can check your answers and find more info on alkenes and alkynes here!

Image Attributions

  1. [1]^ License: CC BY-NC 3.0
  2. [2]^ License: CC BY-NC 3.0
  3. [3]^ License: CC BY-NC 3.0
  4. [4]^ License: CC BY-NC 3.0

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