3) What would be the concentration of a solution made by adding 250 ml of dH2O to 100 ml of 2.5 M KOH

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave