Catalysts

Question 1

Choose the correct answer from the drop-down menu.If all other conditions are held constant, when the temperature of a reaction system increases, reaction rate

Revolt · Accepted Answer

increases.

Question 2

This means that the reaction

Revolt · Accepted Answer

takes less time.

Question 3

Which of these actions would increase the rate of this reaction? Check all that apply.

Revolt · Accepted Answer

using a more concentrated HCl solution; crushing the CaCO3 into a fine powder

Question 4

For the following questions, assume that all four graphs have the same vertical scale.Which graph shows an endothermic reaction?

Revolt · Accepted Answer

graph 1

Question 5

Which exothermic reaction has the greatest activation energy?

Revolt · Accepted Answer

graph 3

Question 6

Which reaction has the most negative overall energy change: graph 3 or graph 4?

Revolt · Accepted Answer

graph 4

Catalysts Answers

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