The oxidation number of Nitrogen in HNO3 is:
Correct answer: D. +5
- A. +4
- B. +2
- C. +6
- D. +5
- E. +7
Explanation
Oxide ion has a charge of -2. Three oxide ions will thus have a charge of -6 H has a charge of +1. N is HNO3 will thus be: -6+1+x=0 x=+5.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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