What are the strongest types of intermolecular forces that could exist between food dye molecules (FD&C Blue No. 1, FD&C Blue No. 2, FD&C Red No. 3, FD&C Red No. 40, FD&C Yellow No. 5, FD&C Yellow No. 6) and the salt solution that serves as the eluent (or mobile phase) in this paper chromatography experiment? You should name one important force not named between the food dye molecules and cellulose structures that are the stationary phase in paper chromatography.