Thing is, X2 students are probably better maths students in general so don't worry too much about being a little bit behind. The scaling you get from X2 is worth it.
When it's a weak-acid/base titration - in which case the pH would be over 7, or when it's a acid/weak-base titration - in which the case would be under 7.
If it's a weak-acid/weak-base titration there is no equivalence point because not enough acid is neutralised by the base
People don't like it because it suggests to the markers that you're lazy :/
You can do it if you want, but you should be sure that your analysis is good enough to please the markers.
This suggests that the same amount of energy is required for each individual electron transfer reaction within the cell - it's a similar question to asking what's the EMF of 2Ag+ + 2e- => 2Ag as opposed to Ag+ + e- => Ag