A galvanic cell has the overall reaction: Zn(s) + 2Eu(NO 3 ) 3 (aq) $\rarr$ Zn(NO 3 ) 2 (aq) + 2Eu(NO 3 ) 2 (aq) Which is the half reaction occurring at the anode

The anode is where oxidation occurs, and option C correctly shows the oxidation of solid zinc (Zn) to zinc ions (Zn^2+) with the release of two electrons, which is consistent with the overall reaction given.

A galvanic cell has the overall reaction: Zn(s) + 2Eu(NO 3 ) 3 (aq) $\rarr$ Zn(NO 3 ) 2 (aq) + 2Eu(NO 3 ) 2 (aq) Which is the half reaction occurring at the anode

The anode is where oxidation occurs, and option C correctly shows the oxidation of solid zinc (Zn) to zinc ions (Zn^2+) with the release of two electrons, which is consistent with the overall reaction given.

Solved

A Galvanic Cell Has the Overall Reaction:
Zn(s) $\rarr$ Zn(NO₃)₂(aq) + 2Eu(NO₃)₂(aq)
Which Is the Half Reaction Occurring at 2Eu(NO₃)₃(aq)

Question 38

Multiple Choice

A galvanic cell has the overall reaction:
Zn(s) + 2Eu(NO₃) ₃(aq) $\rarr$ Zn(NO₃) ₂(aq) + 2Eu(NO₃) ₂(aq)
Which is the half reaction occurring at the anode

A) NO₃^-(aq) + 4H⁺(aq) + 3e^- $\rarr$ NO(g) + 2H₂O(l)
B) NO₂(g) + H₂O(l) $\rarr$ NO₃^-(aq) + 2H⁺(aq) + e^-
C) Zn(s) $\rarr$ Zn²⁺(aq) + 2e^-
D) Eu³⁺(aq) + e^- $\rarr$ Eu²⁺
E) Zn(s) + 2e^- $\rarr$ Zn²⁺(aq) ^-