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Shintaro89 ♂️ [12833885] [2010-01-27 19:07:09 +0000 UTC] (Germany)

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# Comments

Comments: 12

Zachary-A-Valerian [2023-11-11 13:09:51 +0000 UTC]

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Zachary-A-Valerian [2019-11-11 16:41:02 +0000 UTC]

Happy Birthday!

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Zachary-A-Valerian [2018-11-11 22:30:00 +0000 UTC]

Happy Birthday!

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Zachary-A-Valerian [2017-11-12 00:59:03 +0000 UTC]

Happy Birthday!

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TheInvertedTower [2014-02-01 18:39:08 +0000 UTC]

Say, I could use your advice. Does this sound right?

Oxidation: For example, Oxygen can be used to remove Electrons from Iron (Fe).
This is because Oxygen needs 2 Electrons to make itself stable, so it has an electric charge of -2.Iron oxide: Iron (Fe) has an oxidation state ranging from -2 to +6 (Although +2 and +3 are the most common).

Iron oxides are chemical compounds composed of Iron and oxygen. Rust is a form of Iron(III) oxide [00 ].

You cannot have an oxidation reaction without a corresponding reduction reaction [00 ].

Rrusting: (Fe) + -nH2O + O2 (e4-) → (Fe)2O3

The release of Electrons causes a small current to flow in the (Fe) [00 ].(Fe)2 + O24- → (e4-)Type 1: (Fe)2 + O2 (e4-) → [ (Fe)1O2+4 ] + [ (Fe)1 ]

Type 1: (Fe)2 + O2 (e4-) → [ (Fe)1O1+2 ] + [ (Fe)1O1+2 ]Reduction (Redox): Oxygen is reduced (gains e-)

(e4-) + 2 H2O + O22- → [ OH2- ] + [ OH2- ] + [ O22- ]Type 1: (e4-) + O24- + H4 → [ H2O ] + [ H2O ]

Type 2: (e4-) + O24- + H2 → [ H2O ] + [ O1 ]

Type 3: (e4-) + O24- + H2 + H2O → [ O22- ] + [ H2O ] + [ H2 ]

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Shintaro89 In reply to TheInvertedTower [2014-02-01 21:51:33 +0000 UTC]

Personally, I would start with a formal definition of oxidation since the present of oxygen isn't necessary: "a redox reaction is a reaction that changes the electron configuration of two ore more elements. The element that formally gaines electrons is reduced, the element that loses electrons is oxidated."
For the example I would suggest to use both arabic numbers for real charges (-2) and roman numbers for oxidation states (+II).

And last about your example: rust is a non-stoichiometric compound, I think it's best described as a mixture of Fe2O3, Fe2O2(OH)2 and Fe2O2(OH) - but that's too much detail. In the end your reaction formulas are quiet confusing.

I'd write the reaction like this:
4 Fe + 3 O2 --> 2 Fe2O3

Or, if you want to split it up:

oxidation: Fe --> Fe(3+) + 3 e(-)
reduction: O2 + 4 e(-) --> 2 O(2-)
---------------------------------------------
combined: 4 Fe + 3 O2 --> 2 Fe2O3

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TheInvertedTower In reply to Shintaro89 [2014-02-02 09:03:50 +0000 UTC]

Thank you. While I wasn't able to describe how (Fe) induces an electric current to create Rust, this still helps me clear up some details.

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inside420 [2014-01-13 12:59:22 +0000 UTC]