Select ALL of the correct statements about equilibrium from the choices below. A) At equilibrium the rates of forward and reverse reactions are equal. B) As a reaction proceeds backwards toward equilibrium the forward rate rises. C) At equilibrium the speed of a reaction equals its rate constant. D) At equilibrium the forward rate equals zero. E) At equilibrium the rate of change of reactant concentration is zero. F) As a reaction proceeds backwards toward equilibrium the reactant concentrations rise.