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Written up definitions for all the topics covered in ocr chemistry a f321 for anyone doing some last minute revision i was doing this as part of my own revision, helpful revision is the best kind, right. Legacy as and a level grade boundaries june 2017 pdf, 460kb. The material presented here is reproduced with permission from ocr. I shall be giving them at the start of each module for students to highlight and add to. The science that studies the properties of substances and how substances react with one another.
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Jan, 2020 a lewis acid is typically called a lewis acid. Definitions of relative molecular mass and relative formula mass will not be required. An outline of ao1 and ao2 and their relative weightings for the as and a2 units are summarised below. A man would make but a very sorry chemist if he attended to that department of human knowledge alone. Ocr f321 gce mole concept mole unit molecular mass.
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