The Rate of a Chemical Reaction Increases with an Increase

question 31

Multiple Choice

The rate of a chemical reaction increases with an increase in concentration of one or more of the reactants.This is best explained by which of the following statements?

• A)The increased concentration of the reactants increases the temperature of the molecules.
• B)The increased concentration of the reactants increases the activation energy of the reaction.
• C)The increased concentration of the reactants increases the speed of the molecules.
• D)The increased concentration of the reactants increases the frequency of effective collisions.
• E)The increased concentration of the reactants decreases the activation energy.

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