Search over 10,000 free study notes

It's worth remembering FOIL: First, Outside, Inside, Last.Say we have the following: (a+b)(c+d), where a,b,c and d are positive integers. Using FOIL, we have: (First) + (Outside) + (Inside) + (Last) ac + ad ...

This is a very common occurence, one which can be rectified relatively easily as long as you realise before the end of the paper. In such cases re-reading the paragraph you have just written can actually tri...

'push' and 'pull' factors are a key and simple way to explain migration , and is something studied at both GCSE, IGCSE and A-Level, and even potentially at university. Simply put, a 'push' factor is somethin...

Metals have a number of physical properties which make them useful to us in society, and which you will be familiar with from everyday experience. By considering the structure and bonding of metals which you...

A mass spectrometer is an important analytical instrument which scientists can use to identify the amount and type of different chemicals in a substance. In this explanation I’ll go through how the mass spec...