A blog covering and explaining the Edexcel IGCSE Chemistry specification for the 2016 summer exams. If you are doing just double science, you do not need to learn the stuff for paper two, if you are doing triple you will need to learn all (GOOD LUCK!) I have separated the papers to make files easier to find. Hope it helps :)
Tuesday, 22 March 2016
1.37 draw a diagram to represent the positions of the ions in a crystal of sodium chloride
Sodium chloride has a typical ionic structure, it has alternating positive (Na+) and negative (Cl-) ions, this is how it should be drawn...
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