alleryStart learning →What is formed when reactants collide with the right orientation and enough energy?
AA stable product molecule at once
BAn unstable activated complex
CA permanent catalyst surface layer
DA separate liquid phase forms
Answer & Solution
Correct answer: B. An unstable activated complex
1. A collision that meets both conditions does not jump straight to products.
2. The species first combine into an unstable arrangement.
3. That arrangement is the activated complex, also called the transition state.
4. It sits at the highest energy point along the reaction path before the products form.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 12 "Kinetics", section 12.5 Collision Theory_
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