C.1 Petrochemicals. Polymers – large molecules coomposed of 500 to 20000 or more repeating units of simpler molecules known as monomers. Petrochemicals – compounds from oil or natural gas. Ex. Detergents, pesticides, pharmaceuticals, cosmetics…
Double covalent bond – ethene, ehylene, carbon is bonded to carbon with 2 bonds.
Chemists use hydrocarbons and knowledge of carbon and covalent bonding to build new molecules