Question #27e55

1 Answer
yumean1119
Oct 10, 2017

I'm afraid that more information is needed to answer the question. Here is just a brief example.

Explanation:

A half cell is a virtual concept to explain the principle of a chemical cell.

[Example] In a Daniel cell, you can think of the two isolated half cells.
(Anode) #Zn -> Zn^(2+) + 2e^-# (1)
(Cathode) # Cu^(2+) + 2e^-# # -> Cu# (2)

[How to connect?]
If you mean valancing the electron, just treat the equations like a simultaneous equation and erase #e^-#.

In the example shown above, just add (1) and (2) and you acquire
# Zn + Cu^(2+)# #-> Zn^(2+) + Cu#.

If you mean connecting the half cell physically, you need salt bridge. See the figure cited from https://en.wikipedia.org/wiki/Salt_bridge
**enter image source here

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