This Study Mind Tutorial covers the following specification points:
AQA: 3.2.4
OCR: 4.1.1, 2.1.6, 3.1.2
Edexcel A: 6.6, 6.11, 6.13, 6.7, 6.8, 6.9, 6.12, 6.14, 6.15
Edexcel B: 6.2, 6.5, 6.6, 6.7, 6.3, 6.4, 6.1
CIE: 10.1, 11.1, 11.2, 10.2