polymerisation

Question 1

polymerisation

Answer 1

high pressure and temperature alkenes can be polymerised

Question 2

monomer to polymer

Answer 2

n alkene -> [part of alkane]n

Question 3

what is addition polymerisation

Answer 3

molecules added together to make a chain

Question 4

environmental harm of plastics

Answer 4

inert so non biodegradable will not break down in the environment
crude oil non renewable

Question 5

cracking

Answer 5

breaking down a long chain alkane to a short chain alkane and alkene to make a profit. short chain alkanes more useful and more profitable and alkene can be made into plastic

Question 6

catalytic cracking

Answer 6

catalyst silica SiO2 or alumina Al2O3 and temperature 600-700C

Question 7

how to do cracking

Answer 7

boiling tube with mineral wool soaked in a liquid hydrocarbon and the catalyst silica/alumina. bung boiling tube fill boiling tube with water and place over tub of water. Heat wool and bubble into boiling tube. Test with bromine water