Question #e06a0
1 Answer
Here's how to do it.
Explanation:
Start with the half-cell reactions.
Write the cell reaction
To construct the cell reaction, we must reverse the
Anode:
Cathode:
Write the cell diagram
The general form for a cell diagram is
#"RED|OX||OX|RED"#
The anode (oxidation) reaction goes on the left, and the cathode (reduction) reaction goes on the right.
The two vertical bars in the middle represent the salt bridge between the two half-cells.
A single vertical bar represents an interface (separation) between two phases.
For this cell, we get
#underbrace("Mg(s)|Mg"^"2+""(aq)")_color(red)("oxidation")"||"underbrace("Cd"^"2+""(aq)|Cd(s)")_color(red)("reduction")#
#color(white)(mmmmmmmll)uparrow#
#color(white)(mmmmmmll)stackrelcolor(blue)("salt bridge")("")#
Here's a cell diagram for a different cell.