|Hydrogen and carbon
|When a hydrocarbon chain has only single covalent bonds it is called an __________.
|When a hydrocarbon chain has a double bond it's called an ________.
|Double bonds have two shared pairs of ________.
|AlkEnes are described as being...
|To test for alkEnes you can use...
|What are more than one monomer called?
|When alkenes join together making a polymer, the reaction is called _______________.
|The process of polymerisation needs 1) 2)
|High pressure Catalyst
|Atoms in a plastic are held together by ___________ bonds.
|Plastics that have WEAK intermolecular forces have... 1) 2)
|Low melting points Can be stretched easily because the polymer molecules can slide over each other
|Plastics that have STRONG intermolecular forces have... 1) 2)
|High melting point Are rigid and can't be stretched