Concept explainers
Interpretation:
The term species is to be defined in terms of redox reaction.
Concept introduction:
Redox reaction is combination of

Answer to Problem 55A
Species is a substance or ion which takes part in redox reaction.
Explanation of Solution
Species is a substance or ion which takes part in redox reaction.
Let’s take example:
2Au3++6I−→2Au+3I2
+3Au3++−1I−→0Au+0I2
The oxidation numbers of atoms shows that
I− is oxidized and Au3+ is reduced.
Thus I− and Au3+ are species in the given redox reaction.
Thus the ions involved in redox reactions are species.
Chapter 19 Solutions
Chemistry: Matter and Change
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