Which statement includes all the steps in the change that is associated with the enthalpy of solution?
solute separation and mixing

reaction of reactants to form products.

solute and solvent mixing and then separating

solute separation, solvent separation, and then mixing

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.