Asked Nov 21, 2019

a. Balance the following equations. b. Identify oxidizing and reducing agents. c. Determine the oxidation numbers of the elements involved in the redox reaction.

Zn(s) + CuSO4(aq) ----> 


I2(s) + S2O32-(aq) -----> I-(aq) + S4O62-(aq)


Expert Answer

Step 1

The balanced chemical equation is given as


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Zn (s)CuSO4 (aq) Cu (s) ZnSO4 (aq)

Step 2

Oxidising agents are those which gets reduced i.e. their oxidation state decreases as the reaction progresses where as reducing agents are those which gets oxidised i.e. their oxidation state increases in the reaction.

Here, the oxidation states of the elements are given as,


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Oxidation State (Reactant side) 0 Oxidation State (Product side) Element Zn +2 Cu +2 0

Step 3

Hence, Zn is reducing agent and ...

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Redox Reactions

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