How do you calculate wavelength and frequency?

If you want to create an electrical current, which situation would produce a solution capable of this

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

Draw the lewis dot structure for each of the following polyatomic ions