What are the half equations representing the changes of Pb2+ and Br- in the electrolysis of lead bromide?

Pb2+ + 2e- -> Pb 2Br- -> Br2 + 2e- Lead ions undergo reduction (gain of electrons) at the negative electrode to form solid lead. Bromide ions undergo oxidation (loss of electrons) at the positive electrode to form bromine gas. Note two electrons are required due to the valency of lead being 2+ and hence 2x Br- are needed.

SF
Answered by Sophie F. Chemistry tutor

38632 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Why is Fluorine in the group 7 of the periodic table? Which element, Fluorine or Chlorine, has a higher electronegativity? Explain your answer.


Explain how electricity is conducted through a metal. To gain full marks your answer must include a description of the structure and bonding in a metal.


Why can graphite conduct electricity?


What is the concentration of 0.4 moles of 25cm3 ethanoic acid?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning