p. 62 #1-3

1) a) Some changes we would see as the beaker cooled is more KCl molecules would dissolve in solution.
    b)
 2) An unsaturated solution will become more concentrated if we add more solute. Decreasing the total volume in the solution also increases the solution's concentration. Considering a solution made by dissolving 20 g KCl in 100 g water at 40 C,
     a)
     b1)

     b2) 1/4 of the water must evaporate at this temperature to create a saturated solution.

3) A solution may be diluted by adding water
   a)
   b)
   c)