Posted by Sushmitha on Saturday, January 19, 2013 at 11:42am.
In the redox reaction:
2FeS + 4.5 O(subscript 2)+ 2H(subscript 2)O > Fe(subscript 2)O(subscript 3) +
2H(subscript 2)SO(subscript 4)
Fe is oxidized or reduced (select one) from ___ to ___.
S is oxidized or reduced (select one) from ___ to ___.

chemistry  Please help  DrBob222, Saturday, January 19, 2013 at 2:56pm
You only need to know the definitions.
Oxidation is the loss of electrons; reduction is the gain of electrons.
To do loss and gain of electrons you use the oxidation states. Fe is +2 in FeS and +3 in Fe2O3. S is 2 in FeS and +6 in H2SO4.

chemistry  Please help  Sushmitha, Sunday, January 20, 2013 at 2:26pm
DrBob222,
I understand that oxidation is a loss, but appears as an increase. I still have two questions.
1) Fe goes from +2 to +3, and S goes from 2 to +6. They both appear to be oxidized because they increased.
Please explain.
2)I think my problem is that I don't understand how you got the +2, +3, 2 and +6. I have looked at problems on the internet and see how they are oxidized or reduced when they write the numbers in the answers. I can follow that, but I don't see how they get the numbers in the first place. Please help me.

chemistry  Please help  Sushmitha, Monday, January 21, 2013 at 12:33am
Dr. Bob222,
Ok, I'm starting to see how to get the oxidation numbers. However, since S goes from 2 to+6, does it also oxidize?
is it possible that both can oxidize? I thought one oxidized while the other reduced.
Answer This Question
Related Questions
 CHEMISTRY  I am having trouble balancing this equation: Ca(OH){subscript 2} + (...
 Chemistry  I am having trouble balancing this equation: Ca(OH){subscript 2} + (...
 Chemistry  Here's one last equation I can't balance: Al{subscript 2}(SO{...
 Chemistry  Calculate the amount (g) of each of the following salts that need to...
 CHEMISTRY  Here's one last equation I can't balance: Al{subscript 2}(SO{...
 CHEMISTRY  Here's one last equation I can't balance: Al{subscript 2}(SO{...
 science  How many grams of water, H(subscript 2)O, and propene, C(subscript 3)H...
 Math Proof  Prove that for all integers n > or = 1 and all real numbers x ...
 physics  A particle of mass m starts from x subscript o = 0 m with V subscript ...
 physics  A particle of mass m starts from x subscript o = 0 m with V subscript ...
More Related Questions