_4. The rate of a chemical reaction may be defined as a.the time it takes for the reaction to be completed b. the change in concentration of any one of the reactants only c. the change in concentration of any one of the reactants or products d. the change in concentration of any one of the products only 5. Which one of the following does a catalyst affect in a chemical reaction? a. The amount of heat liberated or absorbed during the reaction. b. The amount of product(s) formed. c. The amount of reactants needed for the reaction to take place. d. The speed of the reaction.

_4. The rate of a chemical reaction may be defined as a.the time it takes for the reaction to be completed b. the change in concentration of any one of the reactants only c. the change in concentration of any one of the reactants or products d. the change in concentration of any one of the products only 5. Which one of the following does a catalyst affect in a chemical reaction? a. The amount of heat liberated or absorbed during the reaction. b. The amount of product(s) formed. c. The amount of reactants needed for the reaction to take place. d. The speed of the reaction.

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter18: Chemical Equilibrium

Section: Chapter Questions

Problem 18.4TC: a What happens to a reaction rate as temperature drops? Give two explanations for the change. State...

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