Problem: The following reactions (note that the arrows are pointing only one direction) can be used to prepare an activity series for the halogens:Br2(aq) + 2 NaI(aq) → 2 NaBr(aq) + I2(aq)Cl2(aq) + 2 NaBr(aq) → 2 NaCl(aq) + Br2(aq)Predict whether a reaction will occur when elemental chlorine and potassium iodide are mixed.

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The following reactions (note that the arrows are pointing only one direction) can be used to prepare an activity series for the halogens:
Br2(aq) + 2 NaI(aq) → 2 NaBr(aq) + I2(aq)
Cl2(aq) + 2 NaBr(aq) → 2 NaCl(aq) + Br2(aq)

Predict whether a reaction will occur when elemental chlorine and potassium iodide are mixed.

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Our tutors have indicated that to solve this problem you will need to apply the Activity Series concept. You can view video lessons to learn Activity Series. Or if you need more Activity Series practice, you can also practice Activity Series practice problems.