Cis-Trans and E-Z Naming Scheme for Alkenes

[MXMGamer]

Before: Blablablablablabla

After watching this video: you don't say! scumbag teacher

[baby00040007]

the sound of ur voice comforts me that i will do well in chem <3

[Badushaz]

I'm so poor in chemistry... Can anybody help me?

[dedly13]

@Badushaz sal can! cgp books are good too

[goldensilverstar]

Yes plz salman Khan, come to my house and teach me stuff

[DakineActionBastard]

"If I were to come over to your place and say, "name this molecule", the first thing you would do is say; What the f**k is Salman Khan doing at my house?"

[nichtmuttersprachler]

Excellent video! But being a German speaker, I can't help but correct your pronunciation. "entgegen" is pronounced ent-GAY-gehn and is probably better translated as "against." "zusammen" is pronounced tsoo-SAH-mehn.

[dirtypritithings]

why is it not 2-butene

[RossM96]

@dirtypritithings Same thing, some people write them in different ways.

[RahmaaDk]

as I have learned you have to use E/Z configuration when there are 3 or 4 substituents bonded to the carbon with double bond??

[cursed4living]

I believe the E and Z naming convention is only used when there 3 or 4 substituents on the two double doubled carbons. If there are only one or two, then you would name the molecule cis or trans.

[alskdj19]

you are absolutely helping me not fail. or not as bad as i would have. amazing how easy things are if things are explained well.

[sullivanseven]

Please do more organic chemistry Khan :) you're great

[ameneteid]

@sullivanseven he has like 71 organic videos-

[billyt4515]

'im not a latin scholar' just an everything-else-in-life scholar. lol love your videos

[nourish0]

I'd love having Sal at home asking me questions like these.

[mostwanted092]

"If i were to come over to your place..." O_O love the introduction

[Hibbicon]

susammen

[itachicrasian2]

great video. i know this isn't related to the video, but i love going to these more scholarly videos and not seeing immature tolls comments everywhere. 

[jmarr123]

I thought he meant, easy Naming schemes.. but he actually meant E and Z.

[junior1984able]

so the single based hydrongen atached to the main chain is ignored

[NKindianhobo]

You spelled "Zusammen" wrong in the video!!!! Still love ya tho :)

[fongg2]

thanks, i learned more than i should have!

[Rgvfan12]

E - Epposite

Z - Zame Zide

[kourosh89]

@Rgvfan12 Thanks for the mnemonic. I'm going to start using Entgegen-Zusammen instead of cis-trans because it's EZer to remember.

[ksingh945]

great!!!!

[R2SweetTooth]

Hmm I didn't really get why the trans-form could rotate but the cis-form couldn't?

btw, "trans"=across, as in "transatlantic" or "transmit"

[Ratman9339]

@R2SweetTooth Rotate around the central bound? Both have double bonds, the pi bond between 2nd and 3rd C do not allow the rotation, so, trans or cis, it will not rotate, in this case.

[rushianokun]

=) awesome

[norwayte]

"entgegen" maybe is better translated as "in opposition to". And right - "together" is written "zusammen" in german.. Keep on going.

[espen180]

"Together" is German is actually written "zusammen", not "zussamen" as you wrote in the video. :)

Otherwise very nice video. Looking forward to the next one.