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Redox Reactions and RustingTo enable the animations and activities in this presentation, Flash Player needs to be installed. This can be downloaded free of charge from http://get.adobe.com/flashplayer/

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IGCSE Triple Science

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Displacement reactions

The reactivity series of metals can be determined by carrying out displacement reactions.

When a metal salt reacts with a more reactive metal, the more reactive metal will displace the metal in the salt.

incr

easi

ng

rea

ctiv

ity

potassiumsodiumcalcium

magnesiumaluminium

zinciron

copper

gold

lead

silver

(carbon)

(hydrogen)

platinum

If the metal in the metal salt is more reactive, then no reaction will occur.

The metal ion in the salt is reduced by gaining electrons from the metal atom, which is oxidized.

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Reactivity

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Displacement reactions

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Metal oxides and carbon

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Reducing metals with carbon

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