How do I balance redox equations in acidic reactions, without trial and error, using half equations?

Here is a summary on the steps to complete these question types. 

  1. Determin oxidation numbers 2. Figure out what is being oxidised and what is being reduced. 3. Write half equations. 4. Balance the atoms exclusing O and H. 5. To balance O add H2O, to balance H add H+. 6. Add E- to balance charges. 7. Multiply half equations so the number of electrons on each side =0. 8. Combine the half equations by adding together and cancelling out molecules that appear on both sides. 9. Final check to ensure all is balanced correctly.
IK
Answered by Imaany K. Chemistry tutor

1709 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Why does ice float on water?


Give the two reactions required in order to convert an alcohol into a hydroxynitrile. Include reactants and conditions. (6 marks)


What is a dative covalent bond?


What is the trend in atomic radius of the elements across Period 3 and why does this occur?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences