Based on the reaction : Mg + Cl 2 -> Mg 2+ + 2Cl are the following statements TR

Question

    Based on the reaction : Mg + Cl2-> Mg2+ + 2Cl are the following statements TRUEor FALSE:

a.       Magnesium is oxidized andchlorine is reduced

b.      Chlorine is oxidized andmagnesium is reduced

Explanation / Answer

You can separate the reaction into two parts:     Mg --> Mg2+     Cl2 --> 2Cl- Then put in electrons to balance the charge:     Mg --> Mg2+ + 2e-     Cl2 + 2e- -->2Cl- Now we can see that Mg has lost electrons, and Clhas gained electrons. Remember 'OIL RIG'?(Oxidation IsLoss, ReductionIs Gain (of electrons)).Therefore magnesium has been oxidised, and chlorine has beenreduced = (a).

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