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If can replace a with 'avait' for instance they you do not need an a with apostrophe. i.e je vais à la cantine. (the sentence would not make sense if you were to replace à with avait hence you need 'à' an...

This is a key skill which confuses a lot of people and really marks out A* candidates. It needn’t be all that difficult and with eight techniques you can have it in the bag. Firstly, try to consider criti...

Pb2+ + 2e- -> Pb 2Br- -> Br2 + 2e- Lead ions undergo reduction (gain of electrons) at the negative electrode to form solid lead. Bromide ions undergo oxidation (loss of electrons) at the positive el...

I would begin tackling this question with the student by asking them to define the term 'absolutism', as defining the parameters of the question is essential for higher level History. 'Absolutism by negot...

The general quadratic equation is ax^2+bx+c=0, now we need to Complete The Square, which allows us to have only one "x" term. First, divide the equation by "a", leaving us with x^2... ...