Question

Which are true of a catalyst (select multiple)?

A catalyst lowers the activation energy of a reaction


A catalyst raises the activation energy of a reaction


The concentration of the catalyst will increase during the chemical reaction


The concentration of the catalyst will decrease during the chemical reaction


The concentration of the catalyst will remain constant during the chemical reaction

Answer 1

The following statements are true of a catalyst:

- A catalyst lowers the activation energy of a reaction
- The concentration of the catalyst will remain constant during the chemical reaction

Therefore, the correct answer is:

- A catalyst lowers the activation energy of a reaction
- The concentration of the catalyst will remain constant during the chemical reaction