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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.
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 reaction between magnesium and copper(II) sulfate. Diagram showing the colour change when magnesium displaces copper from copper(II) sulfate
28 lut 2020 · Exploring the Activity Series Chart. The activity series is a chart of metals listed in order of declining relative reactivity. The top metals are more reactive than the metals on the bottom. For example, both magnesium and zinc can react with hydrogen ions to displace H 2 from a solution by the reactions: Mg (s) + 2 H + (aq) → H 2 (g) + Mg 2+ (aq)
Remember. 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. magnesium + copper(II) sulfate Mg(s) + CuSO4(aq) magnesium ribbon.
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.
Illustrate reduction, oxidation and the relative reactivity of magnesium and copper(II) oxide in this demonstration. Includes kit list and safety instructions.
