D: calcium sulfate
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Which acid and base react together to produce an insoluble salt?
A solution of fertiliser was tested as shown. Which ions must be present in the fertiliser?
The addition of dilute acid to a solution containing the anion Q and the subsequent use of limewater can be used to i…
Part of the Periodic Table is shown. The letters are not the symbols of the elements. Which statement about the eleme…
Three different beakers are set up as shown. In beaker 1 metal W is displaced from solution. In beaker 2 metal X is d…
Which gases are formed during the production of aluminium by electrolysis of molten aluminium oxide?