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The answer to this lies in the geometry of a circle. At GCSE you were taught that a circle has a radius (which I will call R) which is the distance from the centre to a point on the circle. We pu...

Indeed, Blanche DuBois is a woman in desperation. The initial monologue, ‘I, I, I took the blows’ conveys a gritty, realistic tone as Blanche has witnessed the death of those around her and now has nowher...

Glucose is filtered out of the blood in the glomerulus of the kidneys. All of the glucose is then is actively transported back into the capillaries in the area of the nephron called the proximal convolute...

The oxidation number of an ion is the same as its charge. We know that the oxidation number of K+ is +1 and the oxidation number of O2- is -2, but we don't know the oxidation number of Mn so let's call th...