Скачать или смотреть Magnesium in Copper II Sulfate Solution Timelapse

Mg + CuSO4 = MgSO4 + Cu

Here is a short time-lapse of magnesium metal in copper II sulfate solution. This demonstrates the relative activty of the two metals. Because Magnesium is more active than copper, when the magnesium metal comes into contact witht he copper ions, there will be a reacion. Magnesium metal will oxidize (lose its electrons) and the copper ions will reduce (gain those electrons). Magnesium is the more active metal, which simply means that it 'wants' to be oxidized more. If the roles were reversed, and the copper was neutral and the magnesium was the ion, no reaction would occur! The magnesium would already be the one oxidized so nothing would need to change!