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How does electrophilic aromatic substitution occur?

The delocalised ring in aromatic compounds (such as benzene) is very stable and therefore requires a very strong electrophile to be created before it will react. An example of this would be the formation of ...
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Answered by Miles P. • Chemistry tutor
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It is often said that literature is a voice for social commentary. How is this true of at least two of the works that you have read?

Joseph Conrad's Heart of Darkness and F. Scott Fitzgerald's The Great Gatsby both explore their contemporary contexts. In both, they introduce narrators into an alien context; Conrad explores late nineteenth...
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Outline one or more ways in which behaviourists treat phobias.

One of the ways in which behaviourists treat phobias is by using systematic desensitisation. This process is based on classical conditioning (counterconditioning). The treatment involves replacing an unwante...
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Explain the purpouse of reflux in the oxidation of ethanol to ethanoic acid

Reflux apparatus is when a distillation tube is surrounded by an apparatus that pumps cold water around it in order to condense its compounds in the mixture As ethanol has a low boiling point, it evaporates ...
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Answered by Monisah A. • Chemistry tutor
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What is a meander bend

This is a change in the course of a river usually occuring downstream It is curvatious in nature and is usually surrounded by a flood plain The velocity and energy contained by the river is high around the o...
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Answered by Monisah A. • Geography tutor
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