Complete each sentence using the correct ending from those listed below.
a. A catalyst is...
Complete each sentence using the correct ending from those listed below.
a. A catalyst is
b. Chemical reactions can only happen when
c. Concentration, surface area and temperature can all affect
d. An enzyme is
e. The activation energy is
Choose endings from:
◆ the minimum amount of energy that the particles must have to react.
◆ the rate of a chemical reaction.
◆ reacting particles collide with one another.
◆ a substance that can speed up the rate of a chemical reaction.
◆ a biological catalyst.
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