If an electron absorbs a photon of light with a wavelength of 400 nm, what will be the wavelength of the photon that it will eventually emit? a. 350nm b.400nm c. 500nm d. 600nm

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Adilute aqueous potassium nitrate solution is

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.