1 / 8

Redox Reactions

Redox Reactions. Redox Reactions. Redox is a term used for reduction – oxidation . Redox reactions result from the competition for electrons between reacting particles !

sebastian-hickman
Télécharger la présentation

Redox Reactions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Redox Reactions

  2. Redox Reactions • Redox is a term used for reduction – oxidation. • Redox reactions result from the competition for electrons between reacting particles! • Reduction and oxidation are reactions that are not independent from each other. These two reactions must occur simultaneously. • If one reactant is losing electrons then those electrons must be gained by the other reactant! Hence the term Redox! “LEO the lion says GER”

  3. Redox Reactions • Oxidation represents a loss (or an apparent loss) of electrons. • Thus, oxidation is a reaction in which species lose electrons and gain oxidation number! “leo” lose electrons oxidation! “gon” gain oxidation number! leo gon RA

  4. 0 Zn -2 O Redox Reactions Ex.1) What species is being oxidized in the reaction? _____ Zn + H2SO4 → ZnSO4 + H2 Ex.2) What species is being oxidized in the reaction? _____ 2 KClO3 → 2 KCl + 3 O2 0 +1 +6 -2 +2 +6 -2 0 leo gon RA +1 +5 -2 +1 -1 0 leo gon RA

  5. 0 Cu -3 N Redox Reactions Ex.3) What species is being oxidized in the reaction? _____ 2 AgNO3 + Cu → 2 Ag + Cu(NO3)2 Ex.4) What species is being oxidized in the reaction? _____ 2 NH3 → N2 + 3H2 -1 +1 +5 -2 0 0 +2 +5 -2 leo gon RA -3 +1 0 0 leo gon RA

  6. Redox Reactions • Reduction represents a gain (or an apparent gain) of electrons. • Thus, reduction is a reaction in which species gain electrons and lose oxidation number! “ger” gain electrons reduction! “lon” lose oxidation number! ger lon OA

  7. 0 0 F2 Br2 Redox Reactions Ex.1) What species is being reduced in the reaction? _____ 2 K + F2 → 2 KF Ex.2) What species is being reduced in the reaction? _____ 2 KI + Br2 → 2 KBr + I2 0 0 +1 -1 ger lon OA +1 -1 0 +1 -1 0 ger lon OA

  8. +2 +1 Cu Na Redox Reactions Ex.3) What species is being reduced in the reaction? _____ Pb + CuSO4 → PbSO4 + Cu Ex.4) What species is being reduced in the reaction? _____ 2 NaCl → 2 Na + Cl2 -2 -2 0 +2 +6 -2 +2 +6 -2 0 ger lon OA +1 -1 0 0 ger lon OA

More Related