Question

5. Balance the following reactions using either the oxidation number method or the half-reaction
method. Identify which element has been oxidized and which has been reduced. (2 marks
each)
a. NaClO + H2S → NaCl + H2SO4
b. Ce4+ + I– → Ce3+ + IO3
–
(in a basic solution)

Answer 1

The balanced reaction equations are;

a) 4 NaClO + H2S → 4 NaCl + H2SO4

b)6Ce^4+ + I^– + 6OH^– → 6 Ce^3+ + IO3^– + 3H2O

What is a balanced redox reaction?

A redox reaction is said to be balanced when the number of electrons gained is equal to the number of electrons lost.

Let us now write the balanced reaction equations one after the other. Thus;

a) 4 NaClO + H2S → 4 NaCl + H2SO4

b)6Ce^4+ + I^– + 6OH^– → 6 Ce^3+ + IO3^– + 3H2O

Learn more about redox reaction:https://brainly.com/question/13293425

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