How can 18 minutes of explanation be more helpful and clear than one entire semester of my teacher explanation? Thanks for this lesson Dave.

*Throws tuition at screen*

hey man, to be honest in this whole chapter organic chemistry, i have learned and understood more than in a whole semester of university :) thank you so much, you're saving alot of asses in germany

very simple explanations of how to narrow it down thinking like a student! Thanks professor dave, the cute girl in my class will be so impressed!. P.S. good way to remember which temperature favors the substitutions or eliminations....if it is a low temperature and you are cold you would want to SUBSTITUTE your wardrobe for something better...if it is too hot and you will want to ELIMINATE clothing to cool off.

"Mom, why is my sister's name Rose?" "Because your father loves roses" "Thanks mom" "No problem, Professor Dave"

Math, chem, astronomy, Italian, bio, and anatomy among other things. You've got a helluva melon on your shoulders. Thank you so much for saving my grades, especially during a time when in-person classes aren't a thing!

I thought of killing my teachers but your videos spared their life. So you saved several lives man. thanks for the lecture

A memory trick for the temperatures: Think of "sub-zero temperatures" to remember that substitution occurs at cold temperatures

Watching this after 9 years and i cannot believe how crisp and crystal clear youve made it gah damn

I literally watched this video right before my organic chemistry exam and it saved my life, thank you Dave!!

My friend i dont know how to explain this to you, but you're the manliest man of science

I can't even begin to tell you how much you have cleared up my concepts.thank you so much

twenty minutes and i am an expert in sn1 sn2 e1 e2 amazing hats off to you keep up the good work thank you very much!!!!!!!!!

I've watched several of these series now on YT, and I must say that this one has been the most helpful in understanding these mechanisms! Thank you, professor Dave! You rock!

man this is so comfortable to watch. It´s like smoking pot but instead of smoking you study and instead of pot it´s chemistry.

This is good. To the point and not too long. A more challenging subject in chemistry, yet tackled in a pleasant setting. Keep up the good work.

i saw several videos about this but yours was the easisest to understand , thanks!

You are such a great teacher. I understood more in these 18 mins than in 3 hours lecture in my classes. Thank you so much!!!

This video was the perfect thing for me to touch up on the night before my Organic test! Thankyou!!!

your videos are better to understand than the videos in native language (german). Thanks for your help!

I have one of those rare professors that made me understand these mechanism, but it's always to good have supplemental videos for further concrete understanding. You sir are saving thousands of GPA's :) Thx man!!

hey there! I'm brazilian and I'm studying for ITA's (Instituto Tecnológico de Aeronáutica) exam. This week I discovered your KZfaq channel and since then I watch many of yours "Explains". I just wanna thank you for your initiative, you are helping a lot of people! (sorry for my English, I'm learning yet)

I completely understand this topic now and I gave the answers before you even gave the answers to the questions after the lectures. I'm so grateful.

THANK YOU FOR THIS VIDEO! All my friends are so confused on how to chose between these reactions, and after watching this video, I've become so good at it that they always come ask me to help. Can't believe that an american teacher has such amazing videos of indian competitive exam topics.

The intro and outro somehow make me feel like I'm in kindergarten again although I'm at university. I'm so confused. I'm not so confused about these mechanisms anymore, the video was very helpful, thank you!

Awesome video man! You've helped me tremendously this semester with all your videos. Thank you

16:48 Question 5 was interesting and Sir the way you explained everything is just extremely admirable! Very Rare such teachers I have seen in my life...

8yrs but the lectures are still worth

You're amazing man. If our university prof would just have 1% of your explanation skills..

This is the best science page I've encountered yet!

Thanks Professor Dave!!!! I took organic Chemistry I over the first summer session. You undoubted raised me a letter grade atleast through all the videos I watched. You are both concise and precise. Please continue to make videos!!!!!

Finally...a video that is concise and simple enough to make everything clear! Thanks!

You have no idea how thankful I am for people like you to take your precious time and make such helpful videos for dummies like us. Thank you!!

This video was better then the 1hour video of my university. Thank you, now i am able make the difference between the mecanismes

Thank you soooo freaking much, I'm a chemistry student from Vienna (Austria) and I've got my organic chemistry exam tomorrow and I still had not compleatly understood the matter until you explained it. This was great and soooooooo helpful!

Congratulations Professor Dave!!!! Clear and eassy.

Thank you so much, appreciated this video and others. Every department needs a teacher like you :D

The Best explanation I've ever heard about this subject! Thank you, professor.

This video has saved me so many hours of forcing myself to study and understand and its over 6yrs old.... Thanks so much Professor Dave!

you sir, are a hero!

thank you a lot ! i live in Germany and i have to watch your Videos because you explain it better than germanvideos

I'm from Indonesian, waching this video with 0,9 speed and using subtitle is a very good way to learn chemistry!! Thankyou Prof!

This video is a gem. I am definitely sharing this with all my confused organic chemistry classmates.

you are amazing sir.. your lectures are excellent and take least amount of time... my teacher took 1 hr lecture to pass this all above our head.😂😂

This is all on a very basic level, but nicely explained! always good to come back and solidify the basis of organic chemistry :)

Prof Dave, I cannot put into words just how helpful this has been. Thank you so much!

best video for explanation of Sn1,Sn2,E1 and E2 reaction!!!!! other video are just messy and unable to teach us properly.... thank very much professor Dave :)

Hi Professor Dave! :) You have no idea how much help these videos bring.You explain everything in such an amazing easy understandable way.Thanks so much and keep up the good work . Pharmacy Student from Austria

OMGOSH YOU SAVE LIVES!!! I LEARNED SO MUCH IN 18 MINTUES YOU NO IDEA WHAT THIS MEANS

a big thank you from Belgium, I learned absolutely nothing with my teacher. I found your videos 3 days before my exam, you're my savior

you rock- legit our lifesaver. our school does two semesters of orgo in one and we learned all of this in two weeks with a test tomorrow.

This has helped me thanks! Orgo exam tomorrow!

Great video! Only video that actually helped! P.S. Great camera work & angles!

Dave you da real MVP I love you man. Im from Germany and frequently watching your videos for my OC1 University course! Thanks Buddy!

Bless you, your videos will likely save my semester. I particularly appreciate this video (especially the first 7 ish minutes). It so painlessly cleared up things I have been confused about all semester. Brilliant. A++.

I failed ochem the first time around because of this shit. After two different professors, this is the first time this topic has clicked. THANK YOU FOR SAVING ME

thank you soooo much!! you are a life saver!!!

This is saving me 7 years later Thank you so much 🥺🙏🏼

I've been (helplessly) studying this for a few weeks using lectures and the dumb ass expensive online software we are required to have. But now I may ACTUALLY have a chance at my exam tomorrow morning. Thanks Dave! Wish I had discovered your channel about 3 months ago...

The intro just made me laugh hard enough that I forgot about my ochem final for a few moments

Sir I just love your piano playing ...you're a drumist too! OMG! This all made me go crazy about you. All The Best ! 😇😊😊😊

Thanx, prof. Dave...u have made this chapter easier to understand by explaining it from basic!!!

I just wanted to thank you for helping me with topics like this! I've been studying all weekend for my ACS final and your videos have saved my hide. :)

Commendable! Sir, i watched the entire video very shrewdly and i am not sure but i guess if you look back at the instant 8:55, it should be in an increasing order...right. ??

Nice theme song!

I'm italian but i'm looking your videos because they are the best and the more complete in the entire net, i think

THANK YOU SO MUCH!! u literally saved me after what seems like a whole semester of pure OC chaos in my head..

but in 2:03 min you msaid the 1 degree carbocation is unstable but it can rearrange itself.:)

love the chest hair

I've been reading my textbook, reading 'organic chemistry as a second language', going to study groups, reading my notes, and reading my professor's notes for 2 weeks trying to understand this. In your 19 minute video, you made it clear to me finally. My exam is tomorrow. THANK YOU SO MUCH!

i watched your videos to help me refresh while teaching gen chem discussion. now time to watch organic chem videos for the next class

Lord Jesus came to our rescue

You like.... Killed it. Bravo! You taught me organic haha

Maaaaan I've spent a week grinding through this chapter trying to understand it and this dude just bulldozed it in like 20 mins

You explained this so clearly and so well. Definitely saving this video to study later. Nice job, Dave!

Thanks, this helped a lot!

Im pretty sure my grade just went from an F to an A because of you. lol

You’re fantastic thank you for your channel. Really helps to watch these before I go to sleep

Amazing no clutter explanation. A complete revision before solving questions.

Prof Dave, you are saving my ass. I have a chemistry exam in 80 minutes XD

anyone else google what a parsec was....

Professor Dave, just when I thought all hope was lost, you came to my rescue. Thank you a million times.

Thank you so much Prof. Dave! I watched this video over and over until I "think" dot some of it down. Hopefully I can apply this in many different situations!

Any Indian over here Hit the like button Great job professor

14:40 "that is WEAK"

dude. what a boss. he just lays it down. slam dunking over other teachers. and he's just like "yep"

Wow ! ... So when heat is increased, entropy which is basically disorder is increased. With 2 products we get 3 products. That explanation of disorder or entropy was Awesome ! Very easy to understand now. Thanks !!

this dude looks fucking ripped

E1cb: *Am I a joke to you?* Jokes aside but this really helped me a lot :-)

Subscribing after just the first video i needed to watch. This helped me out better than the book and lecture combined. Thank you and please keep it up!

Man, he just showed me a clever way of deciding the mechanisms. We ow u for that.

I didn't know that Jesus taught org chem so well.

Dave Grohl?

thank you so much! what a well done video. especially enjoyed the part about temperature as mechanism determining factor.

Thank you so much. You combined thermodynamics, inorganic chemistry and organic chemistry so clearly. Lectures leave these things in isolation.

Hairy mozart

hottie with a brain :D

Thank you so much! I still can't believe how good you can explain 😱 My mother tongue is German but since there are no German videos for this topic I decided to try this one. Before I watched this I was really desperate because tomorrow I have a test in organic chemistry and I didn't understand any of this. It's amazing that I understood it better when you explained it in English than when my teacher explained it in German 😄 Thank you so so much! 😊💚 I instantly had to subscribe to your channel 😜

Exams in lest than two weeks and I am stuck with organic 🧪 but you seems to explain it effortlessly. The short videos help a great deal longer videos with young people we get lost along the way..... Thanks a lot man

I´m from Germany and my english is not very well. But I was able to understand this Mechanism, after I watched your video. Thank you very much. Especially for the exercises at the end. That helped a lot!