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Transition metal ions have, by definition, at least one partly filled d orbital (eg:3d). When in a solution, the positive charge of the transition metal ions can cause the lone elctron pairs of other molecul...

You've spent ages writing your personal statement, working hard on your A Levels/IB, and tackling entrance exams - and it's all paid off, because you've got yourself an interview at a medical school! Whilst ...

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas. The terms are: p = pressure, in pascals (Pa). V = volume, in m 3 . n =...

How to write a good English literature essay. 1 - Read the question over and over again and underline the keywords until you fully understand it. 2 - Write a brief plan which will help you organize and struc...

If you are given a simple quadratic equation, for example x 2 +6x+8=0, then in order to factorise this you must find two numbers that add together to make the coefficient of x in the equation (in this case t...