Which statement describes a chemical reaction at equilibrium? Reactant molecules and product molecules have the same...
Which statement describes a chemical reaction at equilibrium?
Reactant molecules and product molecules have the same velocity.
Molecules of reactants and products collide with the same frequency.
The concentrations of reactants and products are equimolar.
Reactants and products are consumed and formed at the same rate.
Homework Answers
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Which statement describes a chemical reaction at
equilibrium?
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In a chemical reaction, the reactant that limits the amount of product that can be formed...
In a chemical reaction, the reactant that limits the amount of product that can be formed is called the limiting reactant (or limiting reagent). The reaction will stop when all of the limiting reactant is consumed. In the sandwich example, bread was our limiting reactant. The reactant or reactants in a chemical reaction that remain when a reaction stops when the limiting reactant is completely consumed are called the excess reactant(s). The excess reactant(s) remain because there is nothing with...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward...
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Given the equilibrium reaction for a general reaction, A+B <->C, explain what happens to the reactants...
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Which of the following is a true statement about chemical equilibria in general? equilibrium [products] = [reactants].
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...
Which of the following statements is/are CORRECT? For a chemical system at equilibrium, the forward and...
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Which of the following statements is true about chemical equilibrium? Select all that apply. At chemical...
Which of the following statements is true about chemical equilibrium? Select all that apply. At chemical equilibrium, the reactants have been completely consumed. At chemical equilibrium, both reactions stop completely. At chemical equilibrium, the concentrations of the species involved in the reaction stay constant (in the absence of an external perturbation). At chemical equilibrium the rate of the forward reaction is equal to the rate of the reverse reaction.
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1) A catalyst is A) a reactant in a chemical reaction. B) a product in a chemical reaction. C) a substance that speeds up a reaction without being consumed in the reaction. D) a substance that increases the energy of the products. E) a substance that decreases the energy of the products.
Which of the following is a true statement about chemical equilibria in general A
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(6.4) The rate of a chemical reaction increases with an increase in the concentration of one...
(6.4) The rate of a chemical reaction increases with an increase in the concentration of one or more reactants. This is best explained by which statement? Select one: a. The higher concentration of reactants increases the activation energy of the reaction. Ob. The higher concentration of reactants increases the potential energy of the molecules. c. The higher concentration of reactants increases the frequency of collisions between molecules. d. The higher concentration of reactants increases the temperature of the molecules. Check...
In a chemical reaction, the reactant that limits the amount of product that can be formed is called the limiting reactant (or limiting reagent). The reaction will stop when all of the limiting reactant is consumed. In the sandwich example, bread was our limiting reactant. The reactant or reactants in a chemical reaction that remain when a reaction stops when the limiting reactant is completely consumed are called the excess reactant(s). The excess reactant(s) remain because there is nothing with...
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...
Given the equilibrium reaction for a general reaction, A+B <->C, explain what happens to the reactants and products from time until the time at which the A reaction reaches equilibrium. (Choose any that are correct) Concentration (mol.dm-3) B С Time (s) Once products are formed in a reversible reaction, reactans can not be formed At equilibrium both the reactant and product concentration are the same At time 0, there are no products. At equilibrium all concentrations become constant As the...
Which of the following statements is/are CORRECT? For a chemical system at equilibrium, the forward and reverse rates of reaction are equal. For a chemical system at equilibrium, the concentrations of products divided by the concentrations of reactants equals one. For a chemical system, if the reaction quotient (Q) is less than K, reactant must be converted to products to reach equilibrium.
1) A catalyst is A) a reactant in a chemical reaction. B) a product in a chemical reaction. C) a substance that speeds up a reaction without being consumed in the reaction. D) a substance that increases the energy of the products. E) a substance that decreases the energy of the products.
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(6.4) The rate of a chemical reaction increases with an increase in the concentration of one or more reactants. This is best explained by which statement? Select one: a. The higher concentration of reactants increases the activation energy of the reaction. Ob. The higher concentration of reactants increases the potential energy of the molecules. c. The higher concentration of reactants increases the frequency of collisions between molecules. d. The higher concentration of reactants increases the temperature of the molecules. Check...
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