Redox Reactions: Crash Course Chemistry #10

All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they carry energy with them, and that transfer of energy is what makes all life on earth possible.

**Special Thanks to Matt Young at the University of Montana (Geosciences Department, Environmental Biogeochemistry Lab) who helped with the chemical demonstrations.**

Oxidation 1:42
Reduction 1:03
Oxidation Numbers 3:29
Redox Reactions 5:59
Oxidation Reactions 6:28
Balancing Oxidation Reactions 7:18

Also thank you to the following chemistry teachers for assistance:
James Sarbinoff
Rachel Wentz
Edi González
Lucas Moore
Chris Conley
Addie Clark
Julia Rosinski

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48 thoughts on “Redox Reactions: Crash Course Chemistry #10

  1. I know this video is old, but the typos are making it really hard to understand :/ like at 9:37, the oxidation numbers on Silver are wrong. They should be switched with the reactant as +1 and the product as +/-0

  2. Rule one
    Atoms, by definition, do not have a charge. If they had a charge they would be ions. And if they’re sharing with themselves, they share it[electrons] equally.
    Rule two
    For a monatomic ion, basically a charged atom, it’s simply the size or number of its charge.
    Example: So the iron (II) in Fe2+ has an oxidation state of plus two, while the chloride ion is minus one.
    Rule three
    Oxygen almost always has an oxidation state of negative two, unless it happens to be in a peroxide molecule like hydrogen peroxide.
    Rule four
    Hydrogen is plus one.
    Rule five
    Fluorine is negative one.

  3. If you can follow this guy you don't need to watch his videos. All he ever does is talk as fast as he can with no concern whatsoever if the student learns anything. If there were no students in his classroom he would still deliver the class to the wall because he just likes talking. Oh wait he's not a teacher.

  4. This is not actually how to get most people to really understand what's going on. This is a bullet list of classroom charts in case you're taking notes, but fails to connect with the real world. Not fun or revelatory to watch.

  5. IF Ag was reduced in your half reaction example towards the end of the video. It would go from 1+ to 0. Correct? I still noticed it displayed as 1+ in the products in the video

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