In 1979, Martin Feinberg gave a series of <a href="http://www.chbmeng.ohio-state.edu/~FEINBERG/LecturesOnReactionNetworks/">lectures on chemical reaction networks</a>. His very first example (1.1) was a simple reaction network with five species, five complexes, and six reactions. This page shows the results of running a simulation of Feinberg's model, using basic Petri net kinetics.