How does the concentration of ions compare to the concentration of molecules in pure water?

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

When would a bouncy ball have the most potential energy