How do catalysts affect a chemical reaction1. Provide activation energy 2.

Question

Lower activation energy. 3. Increase activation energy 4. Lose activation energy

Answer 1

Catalysts affect chemical reactions by lowering the activation energy required for the reaction to occur. Therefore, the correct answer is:

2. Lower activation energy.

By reducing the activation energy, catalysts allow more molecules to have enough energy to react, thus increasing the rate of the reaction without being consumed in the process.