
Oxidation and Reduction
What is the oxidizing agent of this reaction?
3Mg + N2−−−−> Mg3N2
Which species undergoes a loss of electrons?
Fe(s) + Cl2(g)−−−>Fe2+(aq) + Cl- (aq)
Which species undergoes a gain of electrons?
Zn(s) + Mg2+(aq) −−−> Zn2+(aq) + Mg (s)
What is the oxidation number of O in elemental O2 ?