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At first this looks quite daunting as it combines a number of different indices (powers) and a fraction. 

The rules for indices are just something that you have to learn - so don't worry ...

It's experimentally observed that ionisation energies have a general increase as one moves across the period: the first ionisation energy of lithium is ~500 kJ mol‑1, whereas that of n...

So, constructive waves are the waves that build up the beaches. They have a large 'swash', which means they can carry deposits of sand and other materials far up the beach. They are much lower than des...

English exams can seem impossible to revise for, but that isn't the case. English exams can actually be the most fun to revise because it's less about remembering tonnes of specific facts and more abou...

Learning quotes for a closed-book exam can seem like a very daunting task, especially when you've studied a text in detail for an entire year. But it is an essential task as examiners are looking for g...