The Rf values for several dyes in an ink are listed below. Which dye has the greatest affinity for the stationary phase? Dye #1: Rf 0.263
Dye #2: Rf. 0.551
Dye #3: Rf-0737
Dye #4: Rf 0.882
A. Dye #1
B. Impossible to determine from the data given.
C. Dye #3
D. Dye #2
E. Dye #4

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.