CSEC Chemistry · January 2014 · Paper 2 · Question 2(c)
Two experiments were set up as shown in Figure 3. Experiment 1: A zinc rod is immersed in magnesium(II) sulfate solution. Experiment 2: A zinc rod is immersed in copper(II) sulfate solution. In Experiment 1, no visible change was observed, while in Experiment 2, a brown solid settled to the bottom.
Explain the observations from BOTH experiments.
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