Exam (elaborations)
Edexcel iGCSE Chemistry Actual Exam With Well Elaborated Answers Graded A+.
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Experiment for Diffusion? - correct answer 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that am...
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