At equilibrium, the concentrations of reactants and products do not change. But the forward and reverse reactions have not stopped - they are still going on, and at the same rate as each other.

Equilibria Reversible reactions in closed systems reach equilibrium where the rates of forward and reverse reactions are constant. Pressure, concentration and temperature all affect the ...

It is an iridium complex that catalyses the dehydrogenation of a heterocyclic organic compound, and then in the presence of hydrogen changes itself to catalyse the reverse reaction (the ...