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Case studies are a great way to provide evidence for an argument you want to make in a question. I would ensure that you have at least 4/5 key facts of a case study when revising - e.g. Place, Date, Event...

Because chlorine exists as two isotopes, two molecular ions will be present, and their relative heights will correspond to the abundances of the isotopes. The tallest peak will be 3 times the height of th...

This is a really common pitfall, because it is tempting just to tell the examiner everything you know and get carried away telling the story. I find the best way to avoid this is to really think about and...

The electrons in chlorine are further away from the nucleus and in a higher energy level (3p for chlorine as apposed to 2p for fluorine). Chlorines electrons are better shielded and so feel less nuclear c...

Start by reading it multiple times, because the meaning of a passage or a poem can be tricky to grasp on a first reading, no matter how much you know about literature. The excerpt you're looking at will h...