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Explain which species is oxidised in this reaction: Br2 +2I– = 2Br– +I2

A useful way to answer oxidation/reduction questions is to remeber the acronym OIL RIG: O xidation I s L oss (of electrons) R eduction I s G ain (of electrons) In this example Iodine is going from 2I- to I2 ...
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Answered by Rory B. • Chemistry tutor
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Explain which species is oxidised in this reaction: Br2 +2I– 2Br– +I2.

A useful way to answer oxidation/reduction questions is to remeber the acronym OIL RIG: O xidation I s L oss (of electrons) R eduction I s G ain (of electrons) In this example Iodine is going from 2I- to I2 ...
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Answered by Rory B. • Chemistry tutor
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How do I solve simultaneous equations?

Simeltanous equations are a pair of equations that have 2 unknows. In order to solve a simelatneous equation 1 of the unknows must be eliminated. This can be done by either: 1. Substitution - This involves p...
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Answered by Rory B. • Maths tutor
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Integrate the following function by parts and reduce it to it's simplest form. f(x) = ln(x).

First note that ln(x) = 1 ln(x), this is in the form u dv/dx. Let dv/dx = 1 and u = ln(x). du/dx = 1/x from the standard results and v = x by integration. Substituting into the formula integral(u dv/dx)dx = ...
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Answered by Ryan B. • Maths tutor
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Can you explain the narrative techniques in The Turn of The Screw?

The governess is what we would call an unreliable narrator. She is unreliable for a variety of reasons- the most popular reason amongst critics being that she is insane. Following the psychological analysis ...
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