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What is a disproportionation reaction?

A disproportionation reaction is when an element is both oxidised and reduced in the same reaction. You check this by looking at the oxidation state of the element at the begining of the reaction and then wh...
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Answered by Mia V. • Chemistry tutor
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I am worried about the quantitative reasoning section of the UKCAT as it doesn't look like A-Level maths! How can I best prepare?

The quantitative reasoning section of the UKCAT is designed to assess general numerical skill, and so may appear quite contrasting from the sort of maths you will be used to in A-Level. You almost need to go...
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Answered by Eleanor B. • UCAT tutor
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In DNA, if you know the percentage of a base on 1 strand, how do you work out the bases on the opposite strand?

This questions requires knowledge of the base pairing in DNA, plus a little bit of maths! As you know, bases on the 2 DNA strands always pair in the same way: A (adenine) with T (thymine) , C (cytosine) with...
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Answered by Eleanor B. • Biology tutor
14973 Views

Are diffusion and osmosis the same thing?

Diffusion is defined as the movement of a substance from a high concentration to a low concentration, meaning they move from where there are lots of them to where there are fewer. Diffusion of these molecule...
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Answered by Eleanor B. • Biology tutor
8389 Views

What is Le Chatelier's Principle?

Le Chatelier's Principle states that for a reaction which is reversible, where there is a change made to the reaction conditions the equilibrium position will shift to oppose the change. In answering a quest...
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Answered by Angus T. • Chemistry tutor
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