GCSE Gateway Science Suite - Biology A (9-1) - J247. - OCR.
The '9-1' OCR Gateway specification for GCSE Chemistry, examined from summer 2018.
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The rate of a reaction is a measure of how quickly a reactant is used up or a product is formed. There are different ways to determine the rate of a reaction. The method chosen usually depends on.
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Chemistry at GCSE. Years 9, 10 and 11. Specification: GCSE 9-1 OCR Gateway Science CHEMISTRY A. OCR GCSE Gateway Specification The following topics are studied in each year group.