Answer to Question #145550 in General Chemistry for Melissa Damestoir

Question

hg+Ni2+->Hg2+ Ni In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. name of the element oxidized: name of the élement reduced: formula of the oxidizing agent: formula the reducing agent:

Answer 1

Overall reaction

$Hg + Ni^{2+} \to Hg^{2+} + Ni$

Reduction half reaction

$Ni^{2+} + 2e^- \to Ni$

Oxidation half reaction

$Hg \to Hg^{2+} + 2e^-$

$Hg$ (Mercury) is oxidized

$Ni^{2+}$(Nickel ion) is reduced

$Hg$ is the reducing agent

$Ni^{2+}$is the oxidizing agent.