Question

1. the amount of energy needed for a reaction to occur is called (1 point)

○ potential energy
○ kinetic energy
○ threshold energy
○ activation energy

Explanation:

• Potential energy is stored energy, not reaction - initiating energy.
• Kinetic energy is energy of motion, not related to reaction initiation.
• Threshold energy is the minimum energy for a reaction, but the specific term for the energy needed to start a reaction is activation energy. Activation energy is defined as the energy required to start a chemical reaction.

Answer:

D. activation energy