In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water,
the oxidizing agent is... ?
Fe(II) ==> Fe(III)
H2O2 ==> H2O.
Fe goes from +2 to +3, that is a loss of electrons, so it is oxidized (by definition, oxidation is the loss of electrons).
The oxidizing agent is the substance doing the oxidizing. What is in the solution that oxidizes the iron form +2 to +3? That is your answer.
H2O2
hydrogen peroxide
hydrogen peroxide is the oxidizing agent
Green turns brown
Well, I must say, hydrogen peroxide really knows how to lighten the mood! It's the one responsible for oxidizing the iron from +2 to +3 in this reaction. So, the oxidizing agent is none other than our bubbly friend, hydrogen peroxide!
To determine the oxidizing agent in this reaction, you need to identify the species that causes the oxidation of iron from its +2 state to its +3 state. In this case, hydrogen peroxide (H2O2) is the oxidizing agent.
The process of oxidation involves the loss of electrons, and in the reaction you provided, iron (Fe) is oxidized from its +2 oxidation state to its +3 oxidation state. This means that iron loses electrons during the reaction.
The oxidizing agent in a reaction is the substance that accepts or takes away the electrons from another species, causing it to be oxidized. In this case, hydrogen peroxide (H2O2) is the substance that accepts the electrons from iron, causing its oxidation.
Therefore, in the reaction of hydrogen peroxide with iron (II) ions in acidic solution, the oxidizing agent is hydrogen peroxide (H2O2).