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Why is it important that the baryon and lepton numbers of an interaction are conserved?

Conservation Laws are useful because they establish fixed rules that physical interactions must follow, which helps physicists to better understand these processes. In particular, they provide a picture of w...
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Answered by Ted S. • Physics tutor
4085 Views

Can you state and explain the chemistry behind Markovnikov's rule?

Markovnikov's rule states that, during electrophilic addition to alkenes/alkynes, the hydrogen atom in the electrophile will be added to the carbon atom in the alkene/alkyne that is bonded to he most hydroge...
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Answered by George P. • Chemistry tutor
11167 Views

How many quotes do I need and how do I organise them?

There are many ways to memorise quotes and although it will always be a slog, it can actually be the most fun and rewarding part of revision. Before memorising you've got to organise quotes. A big play or no...
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29964 Views

What is the blood supply of the liver?

The liver is unique in that it has a dual blood supply, both the portal venous system and the systemic circulation. 75% of the blood that flows through the liver is from the portal venous system, venous bloo...
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4344 Views

How do I structure an essay answer to a longer question e.g. "Assess the success of a regeneration scheme you have studied"?

The key thing to do first is to highlight the command word(s) in the question and decide how to structure your answer. Here, it is asking you to "assess the success" so you want to ensure you can p...
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Answered by Anwen D. • Geography tutor
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