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Common exam question: fully expand and simplify (x+3)(x-2) Student asks: how should I best answer the question? How do I do it step by step? My answer: First expand each individual part of the brackets separ...

Because the weak acid is in excess, all of the strong base will react to form water and a salt of the acid. Since there is still some of the acid in the reaction mixture at the end point, an acidic buffer is...

In short, a radian is an angular measurement , very much like a degree, except one radian is a lot bigger than one degree, and it has some special properties. A radian can often seem like an unnecessarily co...

mRNA stands for messenger RNA. Essentially, once the strand of DNA is unwound and flattened, it is separated into its two strands. Then the bases on each DNA strand are read in groups of three. These are cal...

Normal adult haemoglobin is primarily comprised of 2 alpha and 2 beta subunits and foetal haemoglobin has 2 gamma subunits instead of the 2 betas. Now what this does is increase the binding affinity of this ...