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The mixture has a ratio of 3:2, white to blue paint. 
3+2=5 so there are 5 parts to the mixture, 3 white and 2 blue.
We know the cost of 1 litre of each, so first we can work out the cost of 1...

An atom is comprised of protons, neutrons, and electrons. Protons have positive charge and the number of protons is dictated by the proton number, which is the same as the number of electrons, which have ...

Gibbs Free Energy change: (delta)G = (delta)H - T(delta)S For a spontaneous chemical reaction, (delta)G must be negative. An endothermic reaction has a positive (delta)H value therefore, in order for the ...

This essay will argue that whilst the ideological divide was extremely significant, it was not the sole responsible factor in the development of the cold war. Arguments that support it being responsible: ...

Structure is integral to achieving the top marks, and can make all the difference between writing a good essay and writing a great essay. At A-Level you have probably learnt to structure your essay into t...