Wednesday, July 24, 2013

Homework Assignment 23

3SCS #1, 3, 6, 13 p. 279 and 3SBS #11, 12 p. 258

1. Repeating units in each structure

  • a. Monomer: 1
  • b. Dimer: 2
  • c. Trimer: 3
  • d. Polymer: unlimited

3. Natural polymers: cellulose, starch, nucleic acids, peptides
Synthetic polymers: polyethylene, polypropylene, polyurethane, polystyrene

6. The term "unsaturated" is used to describe alkenes and alkynes because they have other than single bonds within their structures. Alkenes have a double bond and Alkynes have a triple bond.

13. 


11. 
  • a. II
  • b. III
  • c. I
  • d. II

12. The other 75% is lost in heat, which is why the engine is so inefficient.

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