What are Reduction and Oxidation?

Oxidation occurs when an atom LOSES electrons. Reduction occurs when an atom GAINS electrons. You can figure out which atoms have gained/lost electrons by looking at "oxidation numbers", which are kind of like charges.

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Thank you so much for this video and the one on oxidation numbers! I have a chem test tomorrow and had absolutely no idea what the teacher meant when she explained this. Gotta love midnight youtube studying.

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I finally understand oxidation and reduction. I feel ready for my final today. Thanks

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I'm so glad you used oil rig because my teacher uses it too! I was just freshening up my skills for a quiz tomorrow :)

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My teacher uses LEO the lion goes GER !!! LEO- Loss of Electrons is Oxidised GER- Gain of Electrons is Reduced :))

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Another way to remember "Oil Rig" is. LEO the Lion goes GER. LEO = Loss of Electron is Oxidation GER = Gain of Electron is Reduction. My textbook taught me that :)

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nice video. remember though at the end, the thing that is oxidized is the reducing agent. And the thing that is reduced is the oxidizing agent. he already mentioned it but not at the end.

[@JKgraphicsz]

Thank you c: this topic is kinda weird because its kinda a double negative when you look at it from a beginner point of view, you'd think "REDUCTION" is something to do with an element "LOSING" something... because Reducing something is taking something away from it... but yh, thank for this awesome video :) Helped alot!

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U covered extremely important points there fr redox chapter gd job

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Thank you so much, this video helped soooo much to prepare and understand for Oxidation and Reduction in Gen Chem

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[@adrianfigueroa7824]

In the first Redox Reaction, the Br is reduced by 2e. It gains 1e per Br atom. There are 2 Br atoms. So 2*1 gives you 2. Therefore the Br atom gains 2e. Simple mathematic mistake but you should fix it to clear up any confusion that your viewers may experience.

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Now I get it. Thanks a lot! I need to work on finding the charges for each atom.

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thanks for sharing your video. in 4:02, i couldn't catch. I think, Br should be Oxidation and Cu will be Reduction. for instance, Br loses from 0 to -1. I am looking forward to replying.

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