?For each of the following balanced oxidation-reduction reactions, (i) identify the oxidation numbers for all the elements in the reactants a

Chapter 20, Problem 20.17

(choose chapter or problem)

For each of the following balanced oxidation-reduction reactions,

(i) identify the oxidation numbers for all the elements in the reactants and products and

(ii) state the total number of electrons transferred in each reaction.

(a) \(\mathrm{I}_{2} \mathrm{O}_{5}(s)+5 \mathrm{CO}(g) \longrightarrow \mathrm{I}_{2}(s)+5 \mathrm{CO}_{2}(g)\)

(b) \(2 \mathrm{Hg}^{2+}(a q)+\mathrm{N}_{2} \mathrm{H}_{4}(a q) \longrightarrow 2 \mathrm{Hg}(l)+\mathrm{N}_{2}(g)+4 \mathrm{H}^{+}(a q)\)

(c) \(3 \mathrm{H}_{2} \mathrm{~S}(a q)+2 \mathrm{H}^{+}(a q)+2 \mathrm{NO}_{3}^{-}(a q) \longrightarrow 3 \mathrm{~S}(s)+ 2 \mathrm{NO}(g)+4 \mathrm{H}_{2} \mathrm{O}(l)\)

Text Transcription:

I2O5(s) + 5 CO(g) \longrightarrow I2(s) + 5 CO(1g)

2 Hg2+(aq) + N2H4(aq) \longrightarrow 2 Hg(l) + N2(g)+ 4 H+(aq)

3 H2S(aq) + 2 H+(aq) + 2 NO3 -(aq) \longrightarrow 3 S(s) + 2 NO(g) + 4 H2O(l)

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