Question

Write the two half-reactions that occur in this electroplating process. Be sure to include the states of the elements or ions.

Answer 1

Step-by-step explanation:

As the cell has a copper strip like the anode and a coin or nail (we can consider this like it is nickel) like the cathode, we can write both half-reactions:

• Copper half-reaction,:

`Cu_((s))\leftrightarrows Cu_((aq))^(2+)+2e^-`

In the copper anode, the oxidation reaction takes place. This is the positive terminal.

• Nickel half-reaction,:

`Ni_((aq))^(2+)+2e^-\leftrightarrows Ni_((s))`

In the nickel cathode, the reduction reaction takes place. This is the negative terminal.

The direction of the electron flow always go from the anode to the cathode.