Year 12 chemistry keywords

Question 1

electrophile

Answer 1

electron pair acceptor

Question 2

nucleophile

Answer 2

electron pair donor

Question 3

radical

Answer 3

species that contains an unpaired electron

Question 4

heterolytic bond fission

Answer 4

when one atom receives both electrons from a bonding pair of electrons causing the covalent bond to break

Question 5

homolytic bond fission

Answer 5

when each bonding atom receives one electron from a bonding pair of electrons, causing the covalent bond to break and two radicals are formed

Question 6

homologous series

Answer 6

a group of organic compounds with the same functional group with successive members differing by CH2

Question 7

Aromatic

Answer 7

Hydrocarbons containing at least one benzene ring

Question 8

Acyclic

Answer 8

hydrocarbons with carbon atoms joined together in a ring structure

Question 9

aliphatic

Answer 9

hydrocarbons with carbon atoms joined together with straight chains or branched chains

Question 10

Relative atomic mass

Answer 10

weighted average/mean mass of an atom of an element compared with 1/12 of the mass of an atom of carbon-12

Question 11

relative isotopic mass

Answer 11

mass of an atom of an isotope compared with 1/12 of the mass of an atom of carbon-12