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3 Describe how you would make some copper sulphate crystals.
4 Write a word equation for the reaction between copper oxide and sulphuric acid.
5. What salt will be made when lead oxide reacts with hydrochloric acid?
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Crystals of copper sulphate are prepared as follows:
Take a beaker filled with water and add a few drops of dilute sulphuric acid.
Heat the water. ...
During this process stir continuously.
Continue adding copper sulphate powder till no more powder can be dissolved.
Filter the solution.
Leave it for cooling.
Copper oxide(solid) + Sulphuric Acid (aqueous)-> Copper Sulphate (aqueous)+ Water(liquid) .
Lead (IV) oxide reacts with concentrated hydrochloric acid as follows: PbO2(s) + 4HCl(aq) -----> PbCl2(s) + Cl2(g) + 2H2O(l) What mass of lead chloride would be obtained from 37.2g of PbO2, and what mass of chlorine gas would be produced.
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