A solution of 0.31 M Pb(NO3)2 and 0.27 M AgNO3 is formed. What will precipitate first if solid KCl is added? (Ksp of PbCl2 = 1.6 x 10-5 and Ksp of AgCl = 1.8 x 10-10) A) KNO3
B) AgCl
C) PbCl2
D) AgNO3

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.