Problem: Complete and balance the equation for this reaction in acidic solution.ZnS + NO3- → Zn2+ + S + NO i) Which element got oxidized?ii) Which element got reduced?iii) Which species was the oxidizing agent?iv) Which species was the reducing agent?

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Balancing in acidic solution:

• no need to balance H+ that are left (leave as it is in the reaction)
• (when in basic solution: balance H+ by adding OH- to both sides)

Balancing the reaction:

97% (298 ratings)
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Problem Details

Complete and balance the equation for this reaction in acidic solution.

ZnS + NO3- → Zn2+ + S + NO 

i) Which element got oxidized?

ii) Which element got reduced?

iii) Which species was the oxidizing agent?

iv) Which species was the reducing agent?

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Based on our data, we think this problem is relevant for Professor Karlin's class at JHU.