28 Responses

1. theres a mistake you wrote Mn4O2 and referred to it as MnO2

2. you talk way too fast..I already know this stuff and still have a hard time
   keeping up. 

3. Today was the first day of AP chem and we went over everything in this and
   in the redox reaction video. Sometimes I just hate school (=.=)

4. i wonder how much poon this guy gets

5. Excuse me, I have to pick up the blown off pieces of my head…

6. How do you determine the direction of electrons in the wire?

7. Is there anyway you could add one more video to this series about
   electrostatics/dynamics? I know it’s not in AP chem and is almost (okay
   completely) physics, but it would be a huge help for those of us in college
   chem/ those using MIT OCW/edX 3.091, Also, it basically explains all of
   chem

8. You talk way too fast for me.

9. Matthew Altonte he gets a lot

10. Hello Sir..
    A more thorough explanation is required and appreciated.. Please explain
    the more difficult parts

11. I want to like a battery now.

12. WTF is the wrong with you , first off you’re not funny and to get what
    you’re saying I have to pause the damn video every fucking sec !!!!!!!!!!

13. love u man, thank u so much, u saved me today:)

14. He’s wrong, the positive end is te cathode and the negative end is the
    anode. The anode is oxidized (“An Ox”) and the cathode is reduced (“Red
    Cat”)

15. According to my professor and my college chem book, the outer layer in
    alkaline batteries is actually zinc, while the inner layer is a paste of
    KOH with manganese oxide.

16. In this episode; Hank licks a battery so you don’t have to.

17. I love you

18. was excellent, but where is the test, and why him speak too fast

19. in Electrochemistry: Crash Course Chemistry #36 shouldn’t manganese oxide
    be Mn2O4?

20. The reaction in 1:55 is wrong. It shouldn’t be 2Mn4O2, it should only be
    2MnO2…

21. Why are they always moving everything around, especially on those shelves
    in the back? That flask with the blue liquid in it was always my favourite
    and now it’s gone along with that cool Mario flower thing.
    Humph… Lovely videos, though. Very quick, informative, and clever.

22. Hey where the heck did all the Mns go at 2:00 ?

23. Two things.
    1. Isn’t the positive terminal cathode and the negative terminal anode?
    2. At 1:53, isn’t Manganese (IV) Oxide MnO2 and not Mn4O2?

24. anode (+) = anion (-)
    cathode (-) = cation (+)
    Why are they opposite?

25. Really thanks guys

26. wow what fricking windows is that?

27. RED CAT. AN OX. …..lol