In the reaction for which you assigned oxidation numbers  (Question 4), identify which substance was oxidized and which substance was reduced 3H2S  +  2HNO3 = 3S  + NO  + 4H2O   (a)  substance oxidized (b) substance reduced

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In the reaction for which you assigned oxidation numbers  (Question 4), identify which substance was oxidized and which substance was reduced

3H2S  +  2HNO3 = 3S  + NO  + 4H2O

 

(a)  substance oxidized

(b) substance reduced

Expert Solution
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The oxidation number or oxidation state of an element explains the transfer of electrons on the formation of chemical bonds. The increase in oxidation number represents the oxidation of an element whereas the decrease in oxidation number represents the reduction of an element.

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