chapt 18 (polymers)

Question 1

polymer? (1) + example [natural (3), manmade (3)] + harms (1) + recycle [physical (1), chemical (1)]

Answer 1

• polymer is a large organic molecule built with small monomers (alkenes)
• natural : wool, natural rubber, silk, starch
• man made : polyethene, nylon, terylene, PVC
• non biodegradable = land pollution, water pollution, air pollution
• recycling by - physical : turning plastics into pellets to be reused. chemical : cracking