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Mechanism

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AP Chemistry

Definition

In chemistry, mechanism refers to step-by-step sequence of elementary reactions by which an overall chemical change occurs.

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"Mechanism" also found in:

Subjects (4)

Practice Questions (2)

The reaction described [O3(g) + O(g) → 2O2(g)] is the decomposition of O3. With an addition of NO, the reaction proceeds in two elementary steps and a mechanism is shown: [Step 1: O3 + NO → NO2 + O2 (slow)] [Step 2: NO2 + O → NO + O2 (fast)]. Which is the rate law?
When you _______ the elementary steps of a mechanism, an overall balanced chemical equation is given.

Additional resources (1)

AP Chemistry - 5.10 Multistep Reaction Energy Profile

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