Essential Chemistry for IGCSE - Metals And Reactivity (Section 3 - No. 28)
In the 'thermite' reaction, what is the role of iron(III) oxide (Fe2O3)?
It is the reducing agent.
It provides the energy to initiate the reaction.
It provides the oxygen to oxidize the aluminium.
It is the catalyst.
Explanation
Iron(III) oxide provides the oxygen that oxidizes the aluminium.
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