a) No, this shows the blue color getting more intense. The reaction decolorizes the blue dye b) No, this shows the dye being decolorized, but it also shows the three mixtures with different initial color intensities. The intensities should have started out the same, since all mixtures used the same concentration of dye c) Correct. The mixtures all start out the same, and then the ones with more succinate (reactant) decolorize faster. The mixture with the highest concentration of succinate decolorizes the fastest.