Suppose this crystal consists of aluminum ions with an equilibrium spacing of 0.30 nmnm. What are the energies of the four lowest vibrational states of these ions?

Calculate the molarity of the solution. 6.02 x 1022 molecules of hci (molecular weight = 36.5 g/mole) in 2.0 liters of water m

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?