What is happening
You take control of a hull inspection finding rust below the waterline.
The corrosion model will not close. It needs 6 electrons released per formula unit, and every iron atom that oxidises gives up 3 of them.
Electrons lost
18e⁻
Electrons required
6e⁻
Electrons lost is over by 12 e⁻
Electron transfer cell. Iron atoms oxidised at 6 atoms. Electrons lost 18 e⁻, Electrons required 6 e⁻. Currently electrons lost is over by 12 e⁻.
What is happening
You take control of a hull inspection finding rust below the waterline.
The corrosion model will not close. It needs 6 electrons released per formula unit, and every iron atom that oxidises gives up 3 of them.