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(a) Select all of the correct statements about reaction rates from the choices b

ID: 805926 • Letter: #

Question

(a) Select all of the correct statements about reaction rates from the choices below.


The lower the rate of a reaction the longer it takes to reach completion.


Solid catalysts increase reaction rates as their surface areas increase.


The slowest step in a reaction is called the rate-determining step.


Reactions involving very unstable combinations of chemicals have large rate constants.


The higher the rate of a reaction the longer it takes to reach completion.


Fast reactions can be slowed down by lowering the temperature.


Concentrations of homogeneous catalysts have no effect on reaction rates.

Explanation / Answer

Correct statements are:

The lower the rate of a reaction the longer it takes to reach completion.


Solid catalysts increase reaction rates as their surface areas increase.


The slowest step in a reaction is called the rate-determining step.

Fast reactions can be slowed down by lowering the temperature