Thermite

Thermite

As two rusty cannon balls (one covered in aluminum foil) are smashed together, sparks and a cracking sound are produced.
Fe2O3 (s) + 2Al (s) → Al2O3 (s) + 2Fe (s)

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Activation Energy Chemical Change Energy Transformations Exothermic Reactions Light Mechanochemical Reactions Redox Single Replacement Reactions Sound Thermodynamics

6.2e 6.4f CH.3b CH.3e CH.3f PH.7a PS.5b PS.6b