The concept of punctuated equilibrium was, to some ... He did not assume that the pace of change was constant, however, and recognized that many species retained the same form for long periods.

The complex is formed according to the reaction: Fe3+ + SCN- ↔ Fe(NCS)2+ Addition of Fe3+ or SCN- will push the equilibrium to the right, forming more complex and intensifying the color; while ...

The reaction can reach a dynamic equilibrium close dynamic equilibriumA ... the concentrations of the reactants and products remain constant. The conditions are chosen to ensure the process ...