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Hearing Aid Batteries Utilize a Zinc/air Electrochemical Cell         ~~~~~~~~ -1249 V         ~~~~~~~~

Question 66

Multiple Choice

Hearing aid batteries utilize a zinc/air electrochemical cell. The reduction half-reactions and standard reduction potentials for this cell are given below. What species are oxidized and reduced in the cell reaction?  Hearing aid batteries utilize a zinc/air electrochemical cell. The reduction half-reactions and standard reduction potentials for this cell are given below. What species are oxidized and reduced in the cell reaction?    ~~~~~~~~ -1.249 V   ~~~~~~~~ +0.401 V A) Oxygen is reduced and zinc is oxidized. B) Zinc is reduced and oxygen is oxidized. C) Zinc hydroxide is reduced and oxygen is oxidized. D) Zinc hydroxide is reduced and hydroxide is oxidized. E) Water is reduced and zinc is oxidized.         ~~~~~~~~ -1.249 V  Hearing aid batteries utilize a zinc/air electrochemical cell. The reduction half-reactions and standard reduction potentials for this cell are given below. What species are oxidized and reduced in the cell reaction?    ~~~~~~~~ -1.249 V   ~~~~~~~~ +0.401 V A) Oxygen is reduced and zinc is oxidized. B) Zinc is reduced and oxygen is oxidized. C) Zinc hydroxide is reduced and oxygen is oxidized. D) Zinc hydroxide is reduced and hydroxide is oxidized. E) Water is reduced and zinc is oxidized.         ~~~~~~~~ +0.401 V


A) Oxygen is reduced and zinc is oxidized.
B) Zinc is reduced and oxygen is oxidized.
C) Zinc hydroxide is reduced and oxygen is oxidized.
D) Zinc hydroxide is reduced and hydroxide is oxidized.
E) Water is reduced and zinc is oxidized.

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