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Redox

Redox. A reaction in which electrons are transferred from one atom to another is called an oxidation-reduction reaction, or “ redox ” for short. Redox. Originally, the word “oxidation” referred to reactions with oxygen. In combustion reactions, oxygen steals electrons from other atoms.

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Redox

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  1. Redox A reaction in which electrons are transferred from one atom to another is called an oxidation-reduction reaction, or “redox” for short.

  2. Redox Originally, the word “oxidation” referred to reactions with oxygen. In combustion reactions, oxygen steals electrons from other atoms.

  3. Redox Today, “oxidation” refers to any kind of atom stealing electrons from another.

  4. Redox Ger…

  5. Redox Ger… Loss of Electrons is Oxidation Gain of Electrons is Reduction

  6. Oxidation Number The oxidation number of an atom in an ionic compound is thenumber of electrons lost or gained when it forms an ion.

  7. Oxidation Number Ca + Br2 → CaBr2

  8. Oxidation Number Ca + Br2 → CaBr2 Ca + Br2 → Ca2+ + 2Br-

  9. Oxidation Number Ca + Br2 → Ca2+ + 2Br-

  10. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Ca2+ charge = 2+ Br-charge = 1-

  11. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Ca2+ charge = +2 oxidation number = +2 Br-charge = -1 oxidation number = -1

  12. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Calcium is oxidized by bromine.

  13. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Calcium is oxidized by bromine. Bromine is reduced by calcium.

  14. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Calcium is oxidized by bromine. Bromine is reduced by calcium. An oxidizing agent takes electrons.

  15. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Calcium is oxidized by bromine. Bromine is reduced by calcium. An oxidizing agent takes electrons. A reducing agent gives electrons.

  16. Oxidation Number Ca + Br2 → Ca2+ + 2Br- Calcium is oxidized by bromine. Bromine is reduced by calcium. An oxidizing agent takes electrons. A reducing agent gives electrons. (LEO says GER)

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