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The theoretical Born Haber enthalpy assumes a perfect ionic model where the attraction between the ions is purely electrostatic and the ions are purely spherical. The Born Haber lattice enthalpy is the re...

(-2x+3)(x-6)=

-2x^2+12x+3x-18=

-2x^2+15x-18

There are two ways to work out the answer to this question. The first way involves first working out 25% of £190 and then adding this to your original £190. To calculate 25% of £190 we multiply 190 by 0.2...

Just as a note before I start, some of the symbols I use here will be horribly confused, this won't be an issue with a whiteboard but doing maths in a text editor is not great so I've had to make do.

The poor electoral tactics of the Conservative party in the 1945 election arguably influenced their campaign result. Despite Churchill’s wartime popularity, Conservative tactics to focus exclusively on th...