Categories Every Day Science At the beginning the concentrations of reactants and products change? Post author By esimpk Post date June 21, 2021 A. Sharply B. Rapidly C. Slowly D. Smoothly ← At equilibrium, as long as the volume of the container and the temperature of the chemical system remains unchanged, the concentrations of reactants and products? → When heat is absorbed or evolved in a chemical reaction with molar quantities of reactants and products, it is called?