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 bromine and lithium chloride are mixed.

FREE Expert Solution

We are asked to predict whether a reaction will occur when elemental bromine and lithium chloride are mixed.

Since Cl2 displaces Br- from NaBr, Cl2 is more reactive than Br2.

Hence the order of reactivity is: Cl2 > Br2 > I2


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Problem Details

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 bromine and lithium chloride 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.