Using the following portion of the activity series for oxidation half reactions Mg(s)→ Mg²⁺(aq)+ 2e^- Co(s)→ Co²⁺(aq)+ 2e^- Cu(s)→ Cu²⁺(aq)+ 2e^- indicate which pairs of reactions will occur. A)Cu(s)with Co²⁺(aq)and Co(s)with Mg²⁺(aq) B)Mg(s)with Cu²⁺(aq)and Co²⁺(aq)with Mg²⁺(aq) C)Mg(s)with Cu(s)and Co(s)with Cu(s) D)Mg(s)with Co²⁺(aq)and Co(s)with Cu²⁺(aq)

Question

Quizplus · Accepted Answer

According to the activity series, magnesium can displace cobalt and copper from their sulfates. Hence, Mg(s) can react with Co²⁺(aq) and Co(s) can react with Cu²⁺(aq).

Using the Following Portion of the Activity Series for Oxidation