Discuss why different elution solvents are often used in the column chromatography. In what order and why should the elution solvents be used? In this experiment would the separation happen if only 10:90 ethyl acetate/hexanes was used as an eluting solvent? Would the separation happen if 20:80 ethyl acetate/hexanes was used first followed by 10:90 ethyl acetate/hexanes? I need at least a paragraph response!