R2. How much, how fast and how far?

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2.1 How much? The amount of chemical change

2.2 How fast? The rate of chemical change

2.2 How fast? The rate of chemical change (AHL)

2.3 How far? The extent of chemical change

2.3 How far? The extent of chemical change (AHL)

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2.1 How much? The amount of chemical change

2.2 How fast? The rate of chemical change

2.2 How fast? The rate of chemical change (AHL)

2.3 How far? The extent of chemical change

2.3 How far? The extent of chemical change (AHL)