Consider an Electrochemical Cell Constructed from the Following Half Cells $\to$

question 61

Multiple Choice

Consider an electrochemical cell constructed from the following half cells, linked by an external circuit and by a KCl salt bridge. • an Al(s) electrode in 1.0 M Al(NO₃) ₃ solution
• a Pb(s) electrode in 1.0 M Pb(NO₃) ₂ solution
The balanced overall (net) cell reaction is

• A)Pb(s)+ Al³⁺(aq)\(\to\) Pb²⁺(aq)+ Al(s.)
• B)3Pb(s)+ 2Al³⁺(aq)\(\to\) 3Pb²⁺(aq)+ 2Al(s).
• C)3Pb²⁺(aq)+ 2Al(s)\(\to\) 3Pb(s)+ 2Al³⁺(aq).
• D)Pb²⁺(aq)+ Al(s)\(\to\) Pb(s)+ Al³⁺(aq).

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Definitions:

Synaptic Cleft

The tiny gap between two neurons, across which neurotransmitters travel to transmit nerve impulses.

Voltage-Gated Channel

A type of ion channel that opens or closes in response to changes in the electrical potential across a cell membrane.

Synaptic Vesicle

Synaptic vesicles are small sacs found in neurons that store various neurotransmitters released at the synapse during neurotransmission.

Presynaptic Terminal

The end of a nerve fiber that releases neurotransmitters to send a signal across a synapse to another nerve, muscle cell, or gland.