Speed of reaction review_CST II

Speed of reaction review

Do not worry if you unknown the answer, it is just a review

Multiple Choice

What is the effect of a catalyst on the required energy to achieve effective collisions?

• A catalyst lowers the required energy (activation energy) for a reaction to take place.

• A catalyst does not affect the required energy (activation energy) for a reaction to take place.

• A catalyst increases the required energy (activation energy) for a reaction to take place.

Multiple Choice

How does decreasing temperature affect the rate of reaction.

• Decreasing temperature decreases the rate of reaction.

• Decreasing temperature increases the rate of reaction.

• Decreasing temperature does nothing to the rate of reaction.

Multiple Choice

Reaction rate measures the speed at which reactants:

• appear

• disappear

Multiple Choice

In order for a collision to be considered effective, the reactant particles must have the correct orientation and the proper amount of:

• space

• energy

• concentration

• surface area

Multiple Choice

Which of the following will NOT speed up a chemical reaction?

• increasing the concentration

• adding a catalyst

• decreasing the temperature

• increasing the surface area

Multiple Choice

The way to increase the rate of a reaction is to increase the number of effective collisions

• True

• False

Multiple Choice

A catalyst is considered a reactant in a chemical reaction.

• true

• false