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Redox

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De Wikipedia, le encyclopedia libere
Pro formar sodium fluoruro (Na+ F-, le atomo de sodium cede un electron externe al fluor. Le sodium atomo es oxydate in Na+; le fluor atomo es reducite in F-.

Un reaction redox o de oxydoreduction es un reaction chimic ubi occurre un transferimento de electron, producente al vice un oxydation e un reduction. Le specie chimic captivante electron es le oxydante e illo qui le cede es le reductor. Le reaction es characterisate per un variation del oxydation stato de cade specie implicate.

Redox reactiones pote occurer con un transferimento de atomo:

  • durante le oxydation de un metallo, oxygeno atomos prende electron ab metal e lor oxydation stato diminue;
  • durante un hydrogenation, C=C ligamines son reducite per le acceptation de electron ab hydrogeno.

Redox reactiones redox pote liberar energia (reaction exergonic o exothermic) o absorber le (reaction endergonic ou endothermic).









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