reactivity series and uses
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Thermite process | Alum. + Iron, repair railway lines, molten iron in vigorous reaction, filling gaps and cracks in rail then hardens & Chromium from core, ore converted to chromium oxide, aluminum reduces the oxide and we obtain chromium
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| Sacrificial protection of iron | prevent rusting, zinc more reactive, more ready to form positive ions, zinc forms the oxides instead of the iron
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| Galvanisation | iron/steel plated with zinc by electrolysis & if broken off, there is still sacrificial protection
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| Making cells | more reactive metal has electrons flow from it to the less reactive metal
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