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Preparation of compounds

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preparation of copper sulphate crystalsexcess copper oxide is needed above a)how do you know the solid is in excess? b)how do
1. 1 answer
2. asked by chloe
3. 1,065 views
Could someone explain to me how to prepare (a) zinc chloride by an acid-base reaction and (b) by a gas formation reaction. If
1. 2 answers
2. asked by Tiff
3. 481 views