Which statement is TRUE for dynamic equilibrium? * 1 poir A dynamic equilibrium exists once a reversible reaction occurs. the same amount of reactant and product are formed, meaning there is no net change. A dynamic equilibrium exists once a forward reaction occurs. Substances transition from the reactants to products until the reaction goes to completion. A dynamic equilibrium exists once a backward reaction occurs. Substances transition from the products to reactants until all the product is used up. A dynamic equilibrium exists once a reversible reaction occurs. Substances transition between the reactants and products at equal rates, meaning there is no net change