In a Battery, the Following Two Oxidation-Reduction Reactions Are Taking

question 138

Multiple Choice

In a battery, the following two oxidation-reduction reactions are taking place: rxn A: Zn → Zn+2 + 2e-
Rxn B: 2 NH₄+ + 2e- → 2 NH₃ + H₂
Which reaction is taking place at the anode?

• A)rxn A
• B)rxn B
• C)Both reactions are happening at both the anode and cathode.
• D)Both reactions are happening at the electrode.
• E)The reaction takes place at the electrode, not the anode.

---

Definitions:

Continental Drift

The gradual movement of continents across the earth's surface over geological time, driven by plate tectonics.

Biological Species

A group of organisms capable of interbreeding and producing fertile offspring, sharing common characteristics.

South Pacific

A broad expanse of the Pacific Ocean, south of the equator, known for its many islands and diverse marine life.

Phyletic Gradualism

The idea that evolution occurs by a slow, steady accumulation of genetic changes over time; also called gradualism. Compare with punctuated equilibrium.