Period 5 Catalysts and Reaction Rates

Multiple Choice

Based on the diagram, what is the main difference between a catalyzed and uncatalyzed reaction in terms of energy required?

• Catalyzed reactions require more energy.

• Uncatalyzed reactions require less energy.

• Catalyzed reactions require less energy.

• Both require the same amount of energy.

Multiple Choice

Is the statement 'A catalyst increases the reaction rate by providing more heat to the chemicals' true or false?

• True

• False

Multiple Select

Select all real-life applications of catalysts from the following options:

• Industry: Haber Process uses iron to make ammonia for fertilizers.

• Environment: Catalytic converters turn toxic exhaust gases into safer gases.

• Medicine: Enzymes help digest food and build DNA.

• Catalysts are only used in laboratories.

Multiple Choice

Which term describes a substance that speeds up a reaction without being used up?

• Reaction Rate

• Catalyst

• Activation Energy

• Enzyme

Multiple Choice

Which of the following statements about catalysts is correct?

• They are burned up during the reaction.

• They increase the activation energy.

• They can be reused multiple times.

• They slow down the reaction.

Multiple Select

Select all statements that are true about enzymes.

• They are biological catalysts.

• They are used up in reactions.

• They speed up chemical reactions.

• They increase activation energy.