Catalysts Answers
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Ethanol can react with hydrochloric acid to form chloroethane and water. When sulfuric acid is added, the reaction proceeds more quickly. The sulfuric acid is still present when the reaction is complete. Which statement correctly describes this reaction?
A
Sulfuric acid is a catalyst.B
No catalyst is present.C
Water is a catalyst.3
The addition of a strip of solid platinum metal to an aqueous solution of hydrogen peroxide increases the reaction rate of the decomposition reaction:
A
homogeneousB
heterogeneous4
Which of the following characteristics are true of enzymes? Check all that apply.
A
The structure of an enzyme can change if conditions change.B
A single enzyme can normally catalyze a wide variety of reactions under many conditions.C
Enzymes are found only in nonliving systems.D
Enzymes allow living things to regulate body conditions through feedback mechanisms.E
Enzymes bind to specific substrates in specific ways.F
Enzymes increase the rate of reaction.G
When shown in energy-reaction diagrams, enzymes represent the higher activation energy.Did you find these answers helpful?
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