Multiple Choice
Which of the following aspects is typically different in a catalyzed reaction compared to an uncatalyzed reaction?
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15. Chemical Kinetics
Catalyst
Multiple Choice
Which term best describes a substance that influences the rate of a chemical reaction but is not consumed or permanently changed by the reaction?
A
Solvent
B
Catalyst
C
Product
D
Reactant
Verified step by step guidance1
Understand the role of each term in a chemical reaction: Reactants are substances that start a reaction, Products are substances formed by the reaction, Solvents are mediums in which reactions occur but do not directly influence the reaction rate.
Focus on the definition of a substance that influences the rate of a chemical reaction without being consumed or permanently changed.
Recall that a Catalyst is a substance that increases or decreases the rate of a chemical reaction without undergoing permanent chemical change itself.
Compare the given options with the definition: Reactants and Products are consumed or formed, Solvents do not typically influence reaction rates, but Catalysts do and remain unchanged.
Conclude that the term 'Catalyst' best fits the description of a substance that influences the rate of a chemical reaction without being consumed or permanently changed.
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