The number of electrons that can fit in any energy level is equal to where "n" is the number of the energy level. 2n Alternative 1 4n Alternative 2 3 n Alternative 4 2n? Alternative 3

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution