Answer:
Mad science
Step-by-step explanation:
In the balanced redox equation:
Co + 3Ag+ → Co3+ + 3Ag
The number of electrons being exchanged can be determined by examining the change in oxidation states of the elements involved.
On the left side of the equation, the oxidation state of cobalt (Co) is 0, while the oxidation state of silver (Ag) is +1.
On the right side of the equation, the oxidation state of cobalt is +3, and the oxidation state of silver remains +1.
To balance the equation, cobalt gains 3 electrons (from an oxidation state of 0 to +3), while each silver ion loses 1 electron (from an oxidation state of +1 to 0). Since there are 3 silver ions involved, a total of 3 electrons are being exchanged.
Therefore, in the balanced redox equation, 3 electrons are being exchanged.