The correct option is:
a It speeds up a chemical reaction.
A catalyst increases the rate of a chemical reaction without being consumed in the process. It achieves this by lowering the activation energy needed for the reaction to occur.
a
It speeds up a chemical reaction.
b
It makes a chemical reaction stop immediately.
c
It decreases the speed of a chemical reaction to control the reaction rate.
d
It takes part in a chemical reaction to create different products.
1 answer
The correct option is:
a It speeds up a chemical reaction.
A catalyst increases the rate of a chemical reaction without being consumed in the process. It achieves this by lowering the activation energy needed for the reaction to occur.