Define chemical equilibrium. Group of answer choices The reaction rate in the forward direction equals the reaction rate in the reverse direction resulting in a continuous reaction with no net change.   The chemical reaction stops when the reaction rate in the forward direction equals the reaction rate in the reverse direction.   The chemical reactions stops when the concentration of reactants and the forward reactions rate equals the concentration of the products and the reverse reaction rate.   The chemical reaction stops when the concentration of the reactants equals the concentration of the products.   The concentration of the reactants equals the concentration of the products resulting in a continuous reaction with no net change.

Which of the following changes will increase the total frequency of collisions, both effective and ineffective collisions? Group of answer choices increasing the temperature decreasing the concentration of aqueous and gaseous reactants decreasing the concentration of reactants All of these choices are correct. increasing the surface area of the liquid and solid reactants

What happens to the system when chemicals on the left are added? O The amount of products increases. O The amount of products decreases. O The system remains at equilibrium. O The amount of reactants increases.

Which is the appropriate description to show the effect of a catalyst on the reaction rate and equilibrium in a reversible reaction: Reactants › Products O• The rate of the forward reaction is increased. • The rate of the reverse reaction is decreased 0 •The equilibrium position is displaced to the right O • The rate of the forward reaction is increased. The rate of the reverse reaction is increased The equilibrium position is unchanged. • The rate of the forward reaction is increased. 0 •The rate of the reverse reaction is unchanged • The equilibrium position is displaced to the right • The rate of the forward reaction is unchanged. The rate of the reverse reaction is unchanged The equilibrium position is unchanged. Suppose that an exothermic reaction, Reactants < › Products, is at equilibrium. According to Le Chatelier's Principle, if the reaction temperature is increased, in which direction will the equilibrium be displaced? O The equilibrium will be displaced toward the…