Write balanced chemical equations which describe the dissolution of each solute. Include phase symbols (s), (l), (g), (aq), as appropriate (HINT: look at the Equations on page 2 of the background reading): ethanol:
sodium chloride:
calcium chloride:
aluminum chloride:

Equations on page 2: KCl(s) > K+ (aq) + Cl– (aq) i = 2.0 (3)
MgCl2 (s) > Mg2+ (aq) + 2 Cl– (aq) i = 3.0 (4)
AlCl3 (s) > Al3+ (aq) + 3 Cl– (aq) i = 4.0 (5)