b. 2
c. 3
d. large molecules composed of 500 to 20,000 or more repeating units.
3. synthetic polymers: paint components, fabrics, rubber, insulating materials
natural polymers: silk, wool, DNA, cellulose and proteins.
6. Unsaturated is used to describe the structures of alkenes and alkynes because alkenes, which contain carbon double bonds, are described as unsaturated hydrocarbons. Because of their double bonds, alkenes are more chemically reactive, and therefore better builder molecules than are alkanes.
13.
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