
Interpretation:
Given
Concept Introduction:
Redox reaction is the one where oxidation and reduction takes place simultaneously. In order to

Explanation of Solution
Given reaction is shown below.
Balancing first half reaction:
The first half reaction is given below.
The charge has to be balanced in the above equation. Therefore, two electrons are added to the right side of the equation. This balances out the first half reaction. The balanced equation for half reaction is shown below.
Balancing second half reaction:
The second half reaction is given below.
The number of oxygen atom is not same on both sides of the equation. Therefore, in order to balance oxygen atom, a molecule of water is added on the right side of the equation. This can be given as shown below.
In order to balance the hydrogen atom on both sides of the above equation, two
Now all the atoms on both sides are balanced. The charge on both sides of the equation has to be balanced. Therefore, adding one electron to the left side of the equation balances the half reaction. Balanced equation for the second half reaction can be given as shown below.
Multiplying the equation (6) by 2, the equation is obtained as shown.
Adding equation (2) and (7), the balanced redox equation can be obtained as shown.
The balanced redox equation is obtained as above because the atoms and charges are equal on both sides of the equation.
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Chapter 20 Solutions
Chemistry: The Molecular Science
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