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THE METAL REACTIVITY SERIES. Metals can be ordered according to their reactivities; the table below shows a selection of common metals and their reactivities with water, air, and dilute acids. A more reactive metal will displace a less reactive metal from a compound.
The reactivity series of metals – IGCSE. * Magnesium reacts very slowly with water to begin with, but a layer of insoluble magnesium hydroxide forms. This stops further reaction. However, magnesium reacts vigorously with steam.
Magnesium is very high in the reactivity series, and copper is very low - so the reaction between magnesium and copper oxide is more violent. Therefore, the order is: Oxidation and reduction. Oxidation is the loss of electrons from a substance. It is also the gain of oxygen by. a substance.
Displacement reactions of metals Reactions in solution Remember ribbon A metal will displace a less reactive metal from solutions of its compounds. For example, magnesium is more reactive than copper. When magnesium is put into copper(II) sulfate solution: • magnesium sulfate solution forms • copper coats the magnesium.
What happens to the electrons when magnesium reacts with copper sulfate? The magnesium atom loses electrons. It is oxidised. Half equations show what happens to the electrons during oxidation and reduction:
Displacement reactions of metals Aims To study the reactions of magnesium, zinc, iron and copper in solutions of their salts, and to work out a reactivity series for them. The most reactive metal will be coated by all the others, and the least reactive metal will not be coated by any of the others. Apparatus Goggles Bench mat Spotting tile Teat ...
The activity series can be used to predict the outcome of certain reactions. Any metal on the list can be oxidized by the ions of the element below it. For example: copper is above silver in the activity series, and thus will be by oxidized by the silver ions. Cu (s) + 2Ag+ (aq) --> Cu2+ (aq) + 2Ag(aq)
