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A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in ...

It is useful to follow the PEA paragraph structure when analysing writing. This stands for POINT, EVIDENCE, ANALYSIS. So, you would first clearly state the point you wish to make, quote the writer to give...

First we must establish how to differentiate terms individually. This is done by using the simple method of multiplying the X by the power, and subtracting one away from the power. To make it easier we wi...

The equation of the area of a circle is A = pi*(r^2) Therefore seeing as we have got the area we must work backwards to be able to answer this question. First we shall start off with substituting into the...

The price elasticity of demand tells you how sensitive consumers are to a change in the price of a good. Therefore the more sensitive (elastic) the demand is, the more the tax will effect the demand. So, ...