Redox Reactions

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Last updated 4:08 PM on 5/18/26
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5 Terms

1
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what is redox?

  • reduction-oxidation reactions

  • oxidation: losing electrons

  • reduction: gaining electrons

  • electrons are reactants

  • transfer of electrons

  • total electrons lost by one substance = total electrons gained by other substance

  • OIL RIG

<ul><li><p>reduction-oxidation reactions</p></li><li><p>oxidation: losing electrons</p></li><li><p>reduction: gaining electrons</p></li><li><p>electrons are reactants</p></li><li><p>transfer of electrons</p></li><li><p>total electrons lost by one substance = total electrons gained by other substance </p></li><li><p>OIL RIG</p></li></ul><p></p>
2
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what is oxidation?

  • loss of electron

  • oxidation number is increasing

  • increase in oxygen (high EN, pulls electrons away from other element)

3
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what is reduction?

  • gaining electrons

  • oxidation number decreasing

  • hydrogen is increasing (not as EN, electrons pulled towards other atom)

4
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oxidation and reduction agents

  • oxidizing agent is reduced, accepts electrons

  • reducing agent is oxidized, gives electrons

5
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rule of half reactions

electrons of the oxidation half reaction and reduction half reaction must cancel each other out