BatteryHalfRxns01

Multiple choice question
The two half-reactions for the LeClanché dry cell battery are shown below. Identify the oxidizing and reducing agents in this cell.

Zn(s) Zn2+(aq) + 2e-
2NH4+(aq) + 2e- 2NH3(g) + H2(g)
wrongZn - oxidizing / Zn2+ - reducing
wrongNH4+ - oxidizing / NH3 - reducing
wrongZn -oxidizing / NH3 - reducing
correctNH4+ - oxidizing / Zn - reducing
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