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You should use the product rule when you have a function f(x), which you can't differentiate straight away. But which can be written in the form f(x)=g(x)h(x), where g(x) and h(x) are functions that you d...

Calcium ions diffuse from the sarcoplasmic reticulum and bind to troponin. This binding to troponin causes tropomyosin- which at rest blocks the actin-myosin binding sites- moves to expose these binding s...

Silicon Dioxide has a macromolecular/giant covalent structure which means it has covalent bonds between all atoms in its structure. Sulfur Trioxide has a simple molecular...

So, the main body of your essay should be made of: A key introduction (mentioning the points you are going to answer and your overall answer to the question), 2-4 points and a conclusion (linking back to ...

So the key points in evaluative parts of essays need to answer the "What if" question or the "This depends upon" phrase. For example if your point is "an increase in government sp...