Welcome to the Quiz!
This quiz contains 7 questions from a mix of 1 subtopics.
A substance that increases the rate of a reaction without being chemically changed, or used up, is called a .
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Do transition metals make good catalysts?
yes
no
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Should you include the catalyst in the chemical reaction as one of the reactants?
yes
no
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The two graphs above show the same chemical reaction, but in the presence and absence of a catalyst.
Which one shows the reaction occurring in the presence of a catalyst?
graph 2
graph 1
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Describe the effect of a catalyst on the activation energy and enthalpy change of a chemical reaction.
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What is the effect of a catalyst on the Boltzmann distribution curve?
the curve remains unchanged
the curve becomes flatter
the curve becomes steeper
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How does adding a catalyst affect the x-axis of a Boltzmann distribution curve?
the activation energy position moves to the left
the activation energy position moves to the right
the average energy position moves to the left
the average energy position moves to the right
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