CK-12 Physical Science Concepts - For Middle School

(Marvins-Underground-K-12) #1

3.35. Unsaturated Hydrocarbons http://www.ck12.org


FIGURE 3.67


Cutting metal with an acetylene (ethyne)
torch.

double bonds between carbon atoms.


  • unsaturated hydrocarbon: Hydrocarbon that contains at least one double or triple bond between carbon
    atoms.


Explore More


Draw a plan for a three-dimensional model of an unsaturated hydrocarbon molecule. Think of a way to represent
the different kinds of atoms and bonds in the molecule. For ideas on making three-dimensional molecular models,
go to the URL below.


http://www.ehow.com/how_7707580_make-3d-molecular-model.html


Review



  1. What does it mean for a hydrocarbon to be unsaturated?

  2. Which chemical formula could represent an unsaturated hydrocarbon?
    a. CH 4
    b. C 2 H 6
    c. C 3 H 8
    d. C 2 H 2

  3. Which of the following hydrocarbons has a double bond between carbon atoms?
    a. propane
    b. hectane
    c. ethyne
    d. hexene

  4. Describe an aromatic hydrocarbon

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