Which two statements below are TRUE of catalysts? Choose the 2 correct statements. Explain.
a
A catalyst speeds up the reaction process.
b
Catalysts decrease the activation energy needed to start a reaction.
c
Catalysts increase the activation energy needed to start a reaction.
d
A catalyst slows down the reaction process.
The two TRUE statements about catalysts are:
b) Catalysts decrease the activation energy needed to start a reaction. Catalysts work by providing an alternative reaction pathway with a lower activation energy, making it easier for the reactants to overcome this energy barrier and proceed with the reaction.
d) A catalyst slows down the reaction process. This statement is incorrect; catalysts actually increase the rate of the reaction by speeding up the reaction process, as stated in statement a.