Question

When iron wool is heated in bromine vapor, iron bromide is produced.

(a) Explain the type of reaction bromine atoms undergo when they are converted to bromide ions.

(b) Write a balanced reaction equation for this reaction

Answer 1

a) Bromine atoms undergo reduction as they are converted to Br^- ions. Each bromine atom gains one electron in this process.

b) 2Fe + 3Br₂ --> 2FeBr₃