Something is insoluble if it CANNOT dissolve in a solvent

What is the equilibrium constant of aa+bb=cc+dd

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

0.09 moles of sodium sulfate in 12 ml of solution