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I don't think i've ever taught an A-level chemistry student that hasn't said this at some point. Because it is the part of chemsitry (in my opinion) that seems the most daunting. I generally wait until to...

The development of the Cold War in the years 1945-53 can be accredited to an interplay of various factors as various historians have provided different interpretations. In source 7, Martin McCauley sugges...

The electrical activity of the heart begins in the sinoatrial node which is a collection of pacemaker cells located in the right atrium. These cells spread electrical activity across the atrium causing bo...

Hedonism in an ethical context is the belief that (human) happiness consists of pleasure, and unhappiness of pain. Jeremy Bentham advocated a quantitative hedonism in order to assess the moral worth of an...

first we need to work out the gradient of the tangent at (5,8). so first differentiate the equation once with respect to x. this gives is dy/dx=2x-4. so at (5,8) the gradient of the tangent is 6. this mea...