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Deciding on where to apply is really important; hopefully you are going to be there for at least five years! When trying to decide there are a few important things to look for. However, it is also worth noti...

The passé composé (present perfect) is a frequently used tense to refer to a finished action, event, etc. in the near past. In spoken French, it often replaces the passé simple (past historic). It is a compo...

Firstly note that in general aldehydes are more reactive than ketones. This is a result of two effects: 1. Ketones are more sterically hindered. 2. Alkyl groups are electron donating and so reduce the partia...

Speed and velocity are both measurements of the rate of travel but their is a subtle difference. Speed tells us the rate at which an object is moving. Velocity tells us the rate at which an object is moving ...

A mass spectrometer is a piece of lab equipment used to measure the relative atomic masses of atoms and molecules. It is widely used to identify substances in the lab. The process is often automated and requ...