A)
The reaction is:
Reactant <—> product
So, reactants are forming product in the forward reaction.
Answer: 3
B)
At equilibrium, rate of forward and backward reactions are equal.
So, concentration of reactant and product do not change.
Answer: 6
C)
The reaction is:
Reactant <—> product
So, Products are forming reactants in the reverse reaction.
Answer: 4
Complete each sentence with 1) equal 4) reverse 2) not equal 3) forward 5) changes 6)...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. At equilibrium the rate of change of product concentration is zero. At equilibrium the forward rate constant equals zero. As a reaction proceeds backwards toward equilibrium the reverse rate drops. As a reaction proceeds forward toward equilibrium the reactant concentrations drop. At equilibrium no more reactants are transformed into products.
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6.(6 points) How will each of the following changes affect the equilibrium NHHS NHsHS Rxn is endothermic a. HSto is removed from the system b. The reaction is heated c. The volume of reaction is reduced d. A catalyst is added e. NH HS is added f NHxg is added 7.-(Spty)For the reaction 3A Bo the equilibrium constant value is K -2.5 x 10* a. What is the value of K for the reverse reaction? b....
3. Cerium (II) sulfate dissolves in water and releases heat (exothermic reaction). Ce2(SO4)(s)2 Ce (aq) +3 SO (aq) a. Write the word "heat" on the appropriate side of the equation above. b. What effect will heating a saturated solution of this salt have? C. What will happen to the equilibrium if more SO ions are added to the solution? d. What will happen if Ba2 ions are added to the solution, causing the SO, to precipitate? 4. Which of the...
9. What does it mean if Keq < 1, at equilibrium? The concentration of reactants is greater than the concentration of products. b. The concentration of products is greater than the concentration of reactants. The rate of the forward reaction is greater than the rate of the reverse reaction. c. d. The rate of the reverse reaction is greater than the rate of the forward reaction. e. The concentration of products and reactants are about the same. Which of the...
Which of the following is a true statement about chemical equilibria in general? A. At equilibrium the total concentration of products equals the total concentration of reactants, that is, [products] = [reactants]. B. Equilibrium is the result of the cessation of all chemical change. C. There is only one set of equilibrium concentrations that equals the Kc value. D. At equilibrium, the rate constant of the forward reaction is equal to the rate constant for the reverse reaction. E. At...
2. Label each of the following statement as True or False: Under chemical equilibrium, the concentration of the reactants is equal to the concentration of the products. a. b. Under chemical equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. In Le Chatelier's Principle, the term "stress" refers to the death of a loved one, too much workload, and the deprivation of food and sleep. c. d. In Le Chatelier's Principle, the term...
1) Determine the effect of each of the following changes on the equilibrium mixture for the following reaction: N2(g) + O2(g) + 90.2 kJ + 2NO(g) Circle an answer for each change. a. Increasing the temperature Shift to reactants No change Shift to products b. Adding a catalyst Shift to reactants No change Shift to products c. Removing nitrogen monoxide gas Shift to reactants No change Shift to products d. Decreasing the volume of the container Shift to reactants No...
1. Consider the reaction: 2 NO (g) + 2 H2 (g) → N2 (g) + 2 H2O (g). If the rate of change in NO is -0.68 M s^-1 then write the rate of change for the other reactants and products. What is the rate of the reaction? 2. Consider the reaction: CH3COOC2H5 (aq) + OH- (aq) → CH3CO2- (aq) + CH3CH2OH (aq) The reaction is known to be first order in CH3COOC2H5 and first order in OH-. The second-...
1) At equilibrium, \) the rate constants of the forward and reverse reactions are equal B) all chemical reactions have ceased C) the rates of the forward and reverse reactions are equal D) the value of the equilibrium constant is 1 B) the limiting reagent has been consumed