What happens when a saturated solution is cooled?

Write one point of difference between concentration and solubility.

Identify which of the following are elements,mixtures,or compounds:
$(i)$ Brass $(ii)$ Diamond $(iii)$ Sand.

Answer the following:
$(a)$ Under which category of mixtures will you classify alloys and why?
$(b)$ $A$ solution is always a liquid. Comment.
$(c)$ Can a solution be heterogeneous?

How can we obtain pure copper sulphate from an impure sample?

Which of the following is a homogeneous mixture?