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To calculate the pH of a solution/compound, we can use the equation: pH = - log₁₀[H+]Within the sodium hydroxide solution, you would observe Na + and OH - ions so in order to find the concentra...

Exam essay questions test your ability to produce a coherent argument using knowledge and ideas learned during the year. It is often tempting to try to include everything you've learned, but the best answ...

In my experience practice makes perfect and the best way to do this is to immerse yourself with as much past papers as you can do. Maths is maths so don't be afraid to check other exam boards for their pa...

Very rough and brief plan:Paragraph one: Ascanius is a plot device, but this does not preclude Virgil from showing us elements of his characterHe is manipulated by the gods to make Dido f...

Glycolysis is the first stage of respiration. It involves converting one molecule of glucose into two molecules of pyruvate, with the help of ATP. There are two stages of glycolysis. The first stage is en...