
To find:
a) Assign oxidation numbers to the elements in each compound and
b) Write a net ionic equation describing the formation of chlorine
c) Balance the equation for conversion of

Answer to Problem 8.114QA
Solution:
a) The balanced
The oxidation numbers (O.N.) of the elements in each compound are as follows:
Compound | Element | O.N. |
b) The net ionic equation for the formation of chlorine is
c) The balanced equation for conversion of
Explanation of Solution
We are asked to assign oxidation numbers to all the elements in the given balanced equation. Oxidation number of an atom in a molecule or ion is a measure of the number of electrons it has as compared to the number it would have if it were a free atom. The O.N. values of monoatomic ions are the same as their charges. In molecules and polyatomic ions, atoms have O.N values that are related to the number of covalent bonds they form.
For balancing redox reactions, first, the change in oxidation numbers (
a) The reaction to be balanced is as follows:
We first adjust the
To adjust the number of
Lastly, in order to adjust the
This is the balanced form of the equation.
b) In order to write the net ionic equation, we split the aqueous compounds into their corresponding ions:
We now cancel the
c) Chlorine gas reacts with water to form hydrochloric acid and hypochlorous acid. The balanced reaction is as follows:
It can be seen that the reaction is already balanced.
Conclusion:
The redox reactions are balanced using the rules for balancing redox reactions in acidic and basic medium.
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Chapter 8 Solutions
Chemistry: An Atoms-Focused Approach
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