nikhitaparmar
Mind Map by , created over 6 years ago

GCSE Chemistry Mind Map on C6, created by nikhitaparmar on 05/04/2013.

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nikhitaparmar
Created by nikhitaparmar over 6 years ago
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C6
1 Redox Reactions
1.1 Electrons transferred
1.2 Oxidation: loss of electrons
1.3 Reduction: gain of electrons
1.4 Oxidising agent accepts electrons
1.5 Reducing agent donates electrons
1.6 Chlorine gas passed into iron(II) salt
1.6.1 Green to yellow
1.6.2 Fe2+ loses electron=Fe3+
1.6.3 Chlorine gained electron that Fe2+ lost
1.6.4 Chlorines reduced. Iron(II) ion must be reducing agent
1.7 Displacement Reactions are redox reactions
1.7.1 More reactive metal will displace a less reactive metal from its compound
1.7.2 Put reactive metal into solution of dissolved metal compound, reactive metal replaces less reactive metal
1.7.3 Metal ion gains electrons (reduced)
1.7.4 Metal atom loses electrons (oxidised)
2 Rusting of iron
2.1 iron+oxygen+water=hydrated iron(II) oxide
2.2 Iron loses electrons when reacting with oxygen
2.3 Oxygen gains electrons when when reacting with iron
2.4 Metals combined with other things to prevent rust
2.5 Oil, grease and paint prevent rusting
2.6 Coat of tin can protect steel from rust
2.7 More reactive metals are used to prevent iron rusting
3 Electrolysis
3.1 Splitting up with electricity
3.2 electric current passed through a molten or dissolved ionic compound causing it to decompose
3.3 creates flow of charge through electrolyte
3.4 positive ions towards cathode
3.5 negative towards anode
3.6

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