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Generally, while this differs in term of exam board specification and type of question, two or three as focal points seems to be a fairly good rule of thumb. Any more prevents adequate discussion and mean...

The proportion of the population with genotype Bb can be calculated using the two equations of the Hardy-Weinberg principle. These equations are: p + q = 1  where: p = frequency of the do...

A pure public good is a good that is consumed collectively; it is both non-excludable and non-rivalrous. These two main characteristics mean that people can't be stopped from consuming the good, and that ...

Phenol > Toluene > Benzene > Chlorobenzene.

The reactivity of the ring is dependant on how electron rich it is, as this determines the extent to which the (positively charged) electrophile...

Consider the case n=1. Then 1(1+1)(2*1+1)/6 = 1 = 1^2 and so the claim is true for n=1. Suppose the claim is true for some positive integer n, so that 1+4+9+...+n^2 = n(n+1)(2n+1)/6. Then by the inductive...