sc22-24

Question 1

What are hydrocarbons

Answer 1

hydrocarbons are compounds that only contain hydrogen and carbon

Question 2

what are alkanes

Answer 2

a group of hydrocarbon molecules based on a chain of carbon atoms.
they all have the general formula CnH2n+2 (where n is a whole number

Question 3

what is the homologous series

Answer 3

a series of molecules that have a general formula but vary in a single feature

Question 4

what is meant if carbon atoms are unsaturated

Answer 4

hydrocarbons with at least one double covalent bond between adjacent carbon atoms are unsaturated

Question 5

what are isomers

Answer 5

molecules with the same molecular formula but different arrangement of atoms are Called isomers

Question 6

what is oxidation

Answer 6

Oxidation is when a substance reacts and combines with oxygen

Question 7

what is the proper name and molecular formula for alcohol

Answer 7

ethanol
c2h5oh

Question 8

what are organic compounds

Answer 8

organic compounds have a central framework of carbon atoms , on to which hydrogen and other atoms are attached

Question 9

what is a polymer

Answer 9

a polymer is a large molecule made of lots of small molecules called monomers joined together.
the process in which monomers join together is called polymerisation

Question 10

what are plastics made from

Answer 10

polymers

Question 11

what are polyesters

Answer 11

are synthetic polymers made by condensation polymerisation in which the polymers join together and eliminate a small molecule such as water