To establish viability of network modeling with matrix exponential the irreversible dechlorination reaction reported in was analyzed and satisfactory visual agreement was found . In order to further demonstrate viability an 11 species reversible ET network whose graph is seen to the left was constructed. Nonzero potentials of 0.1V are assigned to sources 1, 2, and 3 at initial concentrations 0.2, 0.4, and 0.6M, respectively (other species assigned zero initial concentration). Lower potentials -0.3, -0.2, and -0.2V are assigned to species 9, 10, and 11. All other species are assigned zero potential (labels omitted). All distances are 8 Å except for the four terminal branches at 15 Å. The associated concentration-time plot for the 11 species network is shown in Figure .