Redox reaction Definition and 50 Threads

Redox (reduction–oxidation, pronunciation: RED-oks or REE-doks) is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal transfer of electrons between chemical species, most often with one species (the reducing agent) undergoing oxidation (losing electrons) while another species (the oxidizing agent) undergoes reduction (gains electrons). The chemical species from which the electron is removed is said to have been oxidized, while the chemical species to which the electron is added is said to have been reduced. In other words:

Oxidation is the loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule.
Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of certain atoms in a molecule (a reduction in oxidation state).Many reactions in organic chemistry are redox reactions due to changes in oxidation states but without distinct electron transfer. For example, during the combustion of wood with molecular oxygen, the oxidation state of carbon atoms in the wood increases and that of oxygen atoms decreases as carbon dioxide and water are formed. The oxygen atoms undergo reduction, formally gaining electrons, while the carbon atoms undergo oxidation, losing electrons. Thus oxygen is the oxidizing agent and carbon is the reducing agent in this reaction.Although oxidation reactions are commonly associated with the formation of oxides from oxygen molecules, oxygen is not necessarily included in such reactions, as other chemical species can serve the same function.Redox reactions can occur relatively slowly, as in the formation of rust, or much more rapidly, as in the case of burning fuel. There are simple redox processes, such as the oxidation of carbon to yield carbon dioxide (CO2) or the reduction of carbon by hydrogen to yield methane (CH4), and more complex processes such as the oxidation of glucose (C6H12O6) in the human body. Analysis of bond energies and ionization energies in water allow calculation of the redox potentials.

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  1. M

    Normality of (COONa)2 - KMNO4 titration (redox reaction)

    We used 14ml of a KMNO4 solution of 0.01 Normality, to find the Normality of a (COONa)2 solution. If we took 10ml of the (COONa)2 solution, what should its Normality be? I thought about using the following equation: N1V1=N2V2 Does the stoichiometry of the redox reaction affect the equation...
  2. somasimple

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  3. il postino

    Chemistry Calculate the potential at the equivalence point

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  4. I

    Chemistry Redox Reaction when a compound is both oxidized and reduced

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  5. P

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  6. D

    Chemistry Balancing Redox Reaction: FeS2+Na2O2→Na2FeO4+Na2SO4+Na2O"

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  7. cianfa72

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  8. somasimple

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  9. S

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  10. alphaj

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  11. Wrichik Basu

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  12. Wrichik Basu

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  13. A

    Questions about Redox Reactions

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  14. D

    Can Methane and Citric Acid be Balanced in a Redox Reaction?

    Hi there: I'm trying to balance a reaction in which methane is oxidized by citric acid in solution. Both methane and citric acid will be transformed into carbon dioxide. To begin, I checked that the reaction is indeed a redox reaction. C6H8O7→CO2 So, I calculated the oxidation number for...
  15. E

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  16. R

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  17. terryds

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  18. Elvis 123456789

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  19. Feodalherren

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  20. WaterMelllon3

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  21. G

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  22. Mandelbroth

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  23. B

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  24. L

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  25. agnibho

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  26. M

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  27. H

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  28. S

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  29. A

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  30. A

    What Does a Muddy Precipitate Indicate in a Redox Reaction?

    Homework Statement "State what you would infer from each of the following observations and suggest experiments you would carry out to test the validity of your inferences: When an unpleasant smelling gas was bubbled into an orange solution of a substance 'A', a solid was formed and the mixture...
  31. I

    Determination of iron purity by redox reaction

    Hi just wondering if you could help, I've stumbled across an example question where the iron purity is meant to be above 80% when 8H+ + 5Fe2+ + MnO4- → 5Fe3+ + Mn2+ + 4H2O 15cm3 is titrated and concentration of potassium permanganate used is 0.02M So far I have worked out Number...
  32. D

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  33. R

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    For a reaction where the electric potential is positive, does there need to be something to provide voltage for the reaction to occur? Let's say E= 1.34V for the reaction. Do I need to connect the electrode terminals to a battery to provide 1.34V?
  34. A

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  35. C

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  36. C

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  37. N

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  38. A

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  39. V

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  40. S

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  41. B

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  42. C

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  43. K

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  44. S

    What Is the Molarity of the Oxalic Acid Solution in This RedOx Reaction?

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  45. E

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  46. P

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  47. D

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  48. F

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  49. L

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  50. E

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