Question

Great Lakes Chemical Company produces bromine, Br₂, from bromide salts such as NaBr, in Arkansas brine by treating the brine with chlorine gas. Write a balanced equation for the reaction of NaBr with Cl₂.

a) 2NaBr(s) + Cl₂(g) → 2NaCl(s) + Br₂(l)
b) NaBr(s) + Cl₂(g) → NaCl(s) + Br₂(l)
c) 2NaBr(s) + 3Cl₂(g) → 2NaCl(s) + Br₂(l)
d) NaBr(s) + 2Cl₂(g) → 2NaCl(s) + Br₂(l)

Answer 1

The balanced equation for the reaction of NaBr with Cl₂ is 2NaBr(s) + Cl₂(g) → 2NaCl(s) + Br₂(l). This reaction involves the replacement of bromine by chlorine in sodium bromide. Correct option is a.

Step-by-step explanation:

The balanced equation for the reaction of NaBr with Cl₂ is:

2NaBr(s) + Cl₂(g) → 2NaCl(s) + Br₂(l)

In this reaction, chlorine gas (Cl₂) reacts with sodium bromide (NaBr) to produce sodium chloride (NaCl) and bromine (Br₂). This reaction is an example of a halogen replacement reaction, where a more reactive halogen (chlorine) replaces a less reactive halogen (bromine).