Edexcel OLevel Chemistry revision notes

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Lesson

Lesson-17.1.11- describe a physical test to show whether a sample of water is pure.

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Lesson-17.1.10- describe a test for the presence of water using anhydrous copper(II) sulfate.Previous Lesson-18.1.1- know that chemical reactions in which heat energy is given out are described as exothermic, and those in which heat energy is taken in are described as endothermic.Next