(a)[1]
Name the substance that reacts with copper(II) oxide to form aqueous copper(II) sulfate.
(b)[1]
Construct an equation for the reaction of copper(II) oxide with the substance named in (a).
(c)[1]
What colour is the solution once the reaction has finished?
(d)[3]
Describe how the student can obtain pure dry crystals of copper(II) sulfate from the solution made in (b).