Please I need help!
It is timed!

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.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?