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Posted by on Tuesday, April 15, 2008 at 2:50pm.

In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water,
the oxidizing agent is____

is it hydrogen peroxide? cus its not water right?

  • chemistry - , Tuesday, April 15, 2008 at 3:11pm

    Look at the equation. The oxidizing agent is the one that is reduced. The one reduced gained electrons. Which one did that?

  • chemistry - , Tuesday, April 15, 2008 at 3:16pm

    so Fe did that... im getting confused because i to oxidize means to lose electrons that makes it more positive and then reduction is actually the addition of electrons

  • chemistry - , Tuesday, April 15, 2008 at 3:29pm

    ???? are u in my class

  • chemistry - , Tuesday, April 15, 2008 at 3:43pm

    No, you were right the first time. Don't get confused by it all. I remember just one of the definitions because it CAN get very confusing. Oxidation is the loss of electrons. That's the one I remember. The oxidizing agent must be reduced. Since oxidation is the loss of electrons, then reduction MUST be the gain of electrons.
    Fe^+2 ==> Fe^+3 + e had to lose electrons which makes that the oxidation. So H2O2 is the only one left to be the oxidizing agent. H2O2 + 2H^+ + 2e ==> 2H2O
    You see O2^-2 on the left goes to -4 on the right (for both oxygens) and it must lose electrons to do that.

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