As a metal corrodes, what happens to oxygen?

QUESTION POSTED AT 23/05/2020 - 04:42 PM

Answered by admin AT 23/05/2020 - 04:42 PM

Oxygen is reduced. For example, corrosion of iron occurs according to the scheme:

4Fe + 3O₂⁰ + 6H₂O = 4Fe(O⁻²H)₃

O₂ + 2H₂O + 4e⁻ = 4OH⁻
Fe - 3e⁻ = Fe⁺³
Post your answer

Related questions

Which metal can be obtained from chalcopyrite?

QUESTION POSTED AT 26/05/2020 - 12:04 PM

How is hydrogen different from alkali metals?

QUESTION POSTED AT 24/05/2020 - 04:12 PM