galvanic cells & batteries

[lorelai]

Hi everyone! I was wondering whether we need to know absolutely everything about every type of cell or battery? Because that would be a lot to remember.

[Mao]

Hi everyone! I was wondering whether we need to know absolutely everything about every type of cell or battery? Because that would be a lot to remember.

No. You need the general principle. There is no need to memorise the equations of the lithium button cell or the alkaline cell.

Special cells you need to know: Down's cell. Membrane/Diaphragm cell. Aluminium production. Fuel cells. Lead-acid battery (car battery).

[lorelai]

Thank you very much, Mao! (:

[Zebra]

I'm wondering how you can deduce half equations from a given balanced equation.

I had this question where I was able to deduce a reactant that's oxidised and a reactant that's reduced. So I balanced it using water but then the solution told me to balance with OH-.. hmm

[Zebra]

and what's the difference between an alkaline fuel cell and an acidic one?
I can't find anything which explains what happens if the electrolyte in the fuel cell is acidic

thanks