A solution contains a mixture of four different compounds: KCl(aq), Fe(NO3)3(aq), MgSO4(aq), and N2H4(aq). Which of these compounds would be easiest to separate via distillation?
(A)KCl(aq) (B)Fe(NO3)3(aq) (C)MgSO4 (aq) (D)N2H4(aq)
D