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One term, and every place the course uses it — the revision notes that teach it, the multiple choice questions that check it, and the detailed questions that examine it.

3 sub-topics use osmosis

  1. Edexcel · Chemistry · 2 States of matter and mixtures

    2.2Separating and purifying mixtures

    required. Desalination can be done by distillation, or by processes that use membranes such as reverse osmosis. These processes require large amounts of energy. You should be able to describe the differences in treatment of ground

    in Potable water and 2 other sections

    Study notes3Multiple choice20Detailed questions4

  2. Edexcel · Chemistry · 4 Extracting metals and equilibria

    4.2Recycling and life cycle assessment

    Used in 5 questions on this sub-topic.

    Study notesMultiple choice5

  3. Edexcel · Chemistry · 4 Extracting metals and equilibria

    4.1Reactivity and extracting metals

    Used in 1 question on this sub-topic.

    Study notesMultiple choice1