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The Steel
Topic 4 Unit F334…read more

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In a redox reaction one chemical is reduced and another oxidised.
O xidation R eduction I s I s L oss G ain
A reducing agent donates electrons to reduce something ­ and gets oxidised itself. The
more powerful a reducing agent is, the more easily it can be oxidised.
A oxidising agent takes electrons away from something to oxidise it ­ and gets reduced
itself. The more powerful an oxidising agent is, the more easily it can be reduced.…read more

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Atoms in elements are in oxidation state zero
In simple ions the oxidation state is the same as the charge on the ion
Element Oxidation state of element Compound Oxidation States of
F 1 H
O H +1 O 2
O 2 CH
H +1 C 4
H +1 (except in H) BrF
F 1 Br +3
Cl 1 (except when combined with O or F)
O 2 S +4
Cl 1 P +3
Here is an…read more

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Each atom in a molecule or ion is assigned an oxidation state to show how much it is
oxidised or reduced.…read more

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Redox reactions involve electron transfer. Redox reactions can be split into two
halfreactions: one producing electrons one accepting electrons
When zinc is added to copper sulfate solution, a redox reaction takes place. The blue
colour of the solutions becomes paler, and copper metal deposits on the zinc. This is an
example of a displacement reaction.
Zn (s) + CuSO
(aq) ZnSO
(aq) + Cu (s)
The sulfate ions play no part in the reaction and are spectator ions.…read more

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Hiya your notes are amazing! this link isn't working though is there anyway you could put it back up? x


Thanks your notes are really useful. Unfortunately some of your links have stopped working?

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