I got 2 questions if someone knows atleast one im glad to have the answer. Ok so extracting aluminium, after the aluminium froms and O2 forms up it reacts with the carbon electrodes so they need to be replaced, but what confuses me is why are the electrodes made of carbon in the first place? why not something which wouldnot react with the oxygen?
and the second question is not really a question but im confused, what are the carbon chain lengths of the oil fractions seperated by fractional distillation, each one has a different carbon chain length but I got 2 text books and the teachers notes and they all give different carbon chains, so which one should I study for the IGs?