An irregularly shaped stone was lowered into a gradulated cylinder holding a volume of water equal to 12ml. the height of the water rose to 17ml if the mass of the stone was 25g what was it's density?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

What are the 4 phases of matter in order of increasing engery content?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?