The formation of iodine is described by the following chemical equation: H, (g) + 2IC1 (g) → 2HCI (g) + I, (g) Suppose a two-step mechanism is proposed for this reaction, beginning with this elementary reaction: H, (g)+ IC1 (g) –→ HI (g) + HC1 (g) Suppose also that the second step of the mechanism should be bimolecular. Suggest a reasonable second step. That is, write the balanced chemical equation of a bimolecular elementary reaction that would complete the proposed mechanism.

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