Oxidation-Reduction Reactions (Section)Which element is

Chapter 4, Problem 51E

(choose chapter or problem)

Problem 51E

Oxidation-Reduction Reactions (Section)

Which element is oxidized and which is reduced in the following reactions?blockquote>

(a) N2(g) + 3 H2(g)→2 NH3(g)

(b) 3 Fe(NO3)2(aq) + 2 Al(s)→ 3 Fe(s) + 2 Al9NO3)3(aq)

(c) Cl2(aq) + 2 NaI(aq)→I2(aq) + 2 NaCl(aq)

(d) PbS(s) + 4 H2O2(aq)→PbSO4(s) + 4 H2O(l)

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