Question

ben observes how quickly some dry wood is burning in a campfire. which term best relates to ben’s observation?
○ reaction rate
○ activation energy
○ collision theory
○ spontaneous reaction

Explanation:

• Reaction rate is the speed at which a chemical reaction occurs. Ben is observing how quickly the wood (a chemical reaction - combustion) is burning, so this term relates.
• Activation energy is the energy needed to start a reaction, not about speed of reaction.
• Collision theory explains how reactions occur (based on particle collisions), not the speed of the reaction's occurrence.
• Spontaneous reaction refers to a reaction that occurs without external energy input, not about the speed of the reaction.

Answer:

A. reaction rate