Respuesta :
Answer : [tex]AgNO_3[/tex] act as oxidizing agent and Cu act as an reducing agent.
Explanation :
Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.
Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.
Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.
Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.
Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.
The given chemical reaction is,
[tex]Cu(s)+2AgNO_3(aq)\rightarrow Ag(s)+Cu(NO_3)_2(aq)[/tex]
In this reaction, Cu shows oxidation reaction because oxidation state changes from (0) to (+2) and Ag shows reduction reaction because oxidation state changes from (+2) to (0).
The oxidation-reduction half reaction will be :
Oxidation : [tex]Cu\rightarrow Cu^{2+}[/tex]
Reduction : [tex]Ag^{+1}\rightarrow Ag[/tex]
In this reaction, [tex]AgNO_3[/tex] act as oxidizing agent and Cu act as an reducing agent.
