Get premium membership and access revision papers with marking schemes, video lessons and live classes.
Study the information in the table below and answer the questions that follow.

A mixture containing 35g of CuSO4 and 78g of Pb(NO3)2 in 100g of water at 600C was cooled to 400C.
(a) Which salt crystallized out? Give a reason.
(b) Calculate the mass of salt that crystallised out.