Is this right? Please help me

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.

Can someone me with questions 12 and 13 plz.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption