HELP PLZ! CHEM!
“While calculating the empirical formula for a compound containing elements X and , Annette found the element ratio to be X(1) Y(1.3) how would the empirical formula be written properly?”
-X1Y8
-X5Y8
-X3Y4
-X3Y8
-X2Y3

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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.

What is the lowest number energy level where a d sublevel is found