AQA A-Level Chemistry - Specimen Paper 1
1:21:15
AQA A-Level Chemistry - Specimen Paper 2
1:25:09
AQA A-Level Chemistry - Specimen Paper 3
33:58
AQA A-Level Chemistry - Bonding
36:56
AQA A2 Chemistry - Born-Haber
18:19
AQA A-Level Chemistry - Shapes of Molecules
30:43
AQA A-Level Chemistry - TOF Mass Spectrometer
15:15
AQA A-Level Chemistry - The Alkaline Earth Metals (Gp. 2)
11:07