Calculate the molarity when 135 g of kcl is dissolved to make a 2.50 l solution. round to two significant digits.

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

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?