Of the three mechanisms listed below, which mechanism agrees with the overall reaction and experimental rate law. Explain your reasoning. Overall reaction: 2NO + Cl, 2NOCI Experimentally Determined Rate Law: Rate = k[NO][CI,) Mechanism 1: NO + Cl, → NOCI, (fast) NOC, + NO → 2NOCI (slow) Mechanism 2: NO + CI, → NOCI + CI (slow) NOCI + NO NOCI, (fast) Mechanism 3: NO + Cl, → NOCI + CI (slow) Cl+ NO NOCI (fast)

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