(a)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
In
In redox reactions, reducing agent is the one that gets oxidized by causing reduction. These agents can be ions, elements, or even compounds. In reduction, the oxidation number decreases due to gain of electrons.
(a)

Answer to Problem K.17E
Balanced chemical equation is
Explanation of Solution
The given reaction is written as follows;
The above chemical equation has the same number of atoms of elements equal on both sides. Hence, this itself is a balanced equation.
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of chlorine is increased from
The oxidation state of chlorine decreases from
(b)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
Refer part (a).
(b)

Answer to Problem K.17E
Balanced chemical equation is;
Oxidizing agent is
Explanation of Solution
The given reaction is written as follows;
Balancing Hydrogen atoms: In the left side of the equation there are two hydrogen atoms while on the product side only one hydrogen atom is present. Adding coefficient
Balancing Sodium atoms: In the left side of the equation there is one sodium atom while on the product side there are two sodium atoms. Adding coefficient
Balancing Chlorine atoms: In the left side of the equation there are two chlorine atoms while on the product side there is one chlorine atom. Adding coefficient
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of sulfur is increased from
The oxidation state of chlorine decreases from
(c)
Interpretation:
Given chemical equation has to be balanced and also the oxidizing agent and reducing agent has to be identified.
Concept Introduction:
Refer part (a).
(c)

Answer to Problem K.17E
Balanced chemical equation is
Explanation of Solution
The given reaction is written as follows;
Balancing iodine atom: In the reactant side, there is one iodine atom while on the product side, there are two iodine atoms. Adding coefficient
Balancing copper atom: In the reactant side, there are two copper atoms while on the product side, there is one copper atom. Adding coefficient
Oxidation number of the atoms present in the above equation is indicated as follows;
From the above equation, it is found that the oxidation state of iodine is increased from
The oxidation state of copper decreases from
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Chapter F Solutions
ACHIEVE/CHEMICAL PRINCIPLES ACCESS 2TERM
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