When a change is made to a system at equilibrium, the position of equilibrium ... For example, bismuth chloride reacts with water in a reversible reaction: BiCl 3 (aq) + H 2 O(l) ⇌ BiOCl(s ...

A dynamic equilibrium is formed in a reversible reaction when the rates of the forward and reverse reaction are equal and the amounts of the reactants and the products remains constant.