Complete the symbol equation for this reaction. Add state symbols. $\text{CuO}$(......) + $\text{H}_2\text{SO}_4$(......) $\rightarrow$ $\text{CuSO}_4$(......) + .................(l)
State one observation that shows copper(II) oxide has been added in excess.
Describe how aqueous copper(II) sulfate may be separated from the reaction mixture.
State what is meant by hydrated.
Write the formula for hydrated copper(II) sulfate.
Describe how crystallisation is carried out.
State why aqueous copper(II) sulfate is able to conduct electricity.
Give two reasons why the electrodes are made of graphite.
Describe how the appearance of the electrolyte changes during electrolysis of aqueous copper(II) sulfate.
Describe what is seen at the cathode during electrolysis of aqueous copper(II) sulfate.
Write the ionic half-equation for the reaction at the anode.
State two differences seen if the electrolysis is repeated using copper electrodes instead of graphite electrodes.