Which of the following is true for a chemical reaction at equilibrium? Click all the apply: The concentration of products will not change because the forward and reverse reaction rates are equal. The reverse reaction is faster than the forward reaction. The rate constants for the forward and reverse reactions are equal. The forward and reverse reactions stop. The concentration of reactants will not change becasue there are too many products.

Select the statement that is true about equilibrium reactions. large value for K (K >> 1) indicates the reaction lies to the right and favors products. K can be a negative value The rate of the reaction forward is equal to the rate of reaction in reverse. O The equilibrium constant is the ratio of the concentrations of the reactants to concentrations of products

i See Periodic Table See Hin Increasing the concentration of a reactant shifts the position of chemical equilibrium towards formation of more products. What effect does adding a reactant have on the rates of the forward and reverse reactions? Choose one: O There is no effect on the forward and reverse reactions. For an equilibrium reaction, the forward and reverse rates are always equal. O Both the forward and reverse reactions speed up by the same amount. O The forward reaction speeds up immediately. As more product is made, the reverse reaction starts to speed up as the forward reaction starts to slow down until they are equal. O The forward reaction slows down initially. As the reaction proceeds, the reverse reaction slows down to meet the new forward reaction. O The forward reaction speeds up. Eventually, production of the product speeds up the reverse reaction rate to match the new forward rate. O It is impossible to say without more specific information.

The following reaction is exothermic: 3A(g) B(g) + C(g) Gaseous argon is added to the equilibrium mixture without change in volume or temperature. Predict the effect of the possible stress mentioned directly above on the reaction mixture by selecting the correct phrase bel shift right to attain chemical equilibrium no shift to attain chemical equilibrium shift left to attain chemical equilibrium Onot enough information to answer question Previous DELL II O O O O