If you came over to my house and asked me to name this molecule, I'd kick you out.

@navjotsingh2251

4 жыл бұрын

Lol what if someone stops you in the street with a gun to your head, and your only way out is to name the molecule!?

@skin_jeggings9420

4 жыл бұрын

Navjot Singh I would get shot

If you were to come over to my place asking me to name those stuff first thing i'd say is "wtf!" LOL

@MonkeyDLuffy-xr4fl

7 жыл бұрын

Ayyy Caesar >:)

@NFLDRAFT2018

5 жыл бұрын

nah I'm pretty sure that's Gangster Gastino

@jiren6637

4 жыл бұрын

GoOMMMuuuuu GOMomuuuu NOoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

@Ezrik2006

4 жыл бұрын

@@jiren6637 Zatling Zun!

Z zame zide

@ollydavis2495

8 жыл бұрын

TogeZer and Epart

@MsPerva

7 жыл бұрын

Olly Davis Nice 😉😊🌹

@ollydavis2495

7 жыл бұрын

MsPerva lol after i commented this I got an E in my AS exam so it's questionable how useful that is...😂

@MsPerva

7 жыл бұрын

Olly Davis But he explained it very clear ☺

@ollydavis2495

7 жыл бұрын

MsPerva yeah but me and chemistry, we don't bond

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

It is zusammen not zussamen and you made my day with your pronounciation. Thank You. You are awesome by the way

@Stagprince1000

2 жыл бұрын

he pronouced that ok-ish its the entgegen part which took me a bit of time to figure out. he pronouses it engigin but its pronouced more like ENT-GEA-GAN

I dunno what would I do without Khan Academy. Thank you so much...

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.

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

i prefer 2-butene

@TheOldirishfan3130

8 жыл бұрын

+Dovahkrab When I was learning this, the fact that profs never named molecules the same way frustrated me.

@juliakhamis6214

7 жыл бұрын

Hero...exactly, makes things simpler.

@MonkeyDLuffy-xr4fl

7 жыл бұрын

Not the best if the molecule is complex

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

Watching this 1 hour before my University exam and Khan you saved my ass! Keep up the good work!

Best way to find every topic relate to ur sub Chem. Good

if i pass my course this year , you'll be one of the strong reasons , so think you

short, precise. Always handy

thanks, i learned more than i should have!

Wow this was so helpful thank you!!!

I think this is my favorite video. I've watched it several times, and I think it's because of the opening. "If I were to come over to your place and said, "name this molecule." My place? For some casual conversation about nomenclature? Well, sure!

LMAO, that German is terrible :P

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.

It seems that 'cis' and 'trans'so only apply when you have one functional group between the carbons you are compairng because the terms are for comparing hydrogen placement. You'll notice in the video that when a molecule is 'cis' or 'trans' the hydrogens are also 'cis' or 'trans' relative to each other. Therefore you cannot call a molecule with two functional groups on it 'cis' or 'trans' because there are no hydrogens to compare--only functional groups. So while the E-Z system is more widely applicable, both systems are equally correct to use regardless of age.

Sal really enjoys saying these names.

Thank you for the clear explanation

Great video but the German pronunciation went so wrong 😂

@rahulbhardwaj2948

3 жыл бұрын

Wii be my friend

@nadjalovekari

3 жыл бұрын

Lol first I was like what's this word until he said it's German I understood it 😂😂

uploaded 12 years ago but still is useful

thank you so much, never going to forget that now :)

so simple, thanks!

entgegen means "against/contrary to"!! love the effort though.. love these videos even more!!!!

Awesome video! Just wanted to point out, there's a slight difference between cis/trans and (Z)/(E) : when you have two DIFFERENT funcional groups on one side, it's not cis anymore, but still (Z). I was kind of confused by this at first. But I guess you talk about this more in the other video you mentioned. Also, love all the germans commenting about “how bad your german is“. I just thought your pronounciation was cute.😁 We're not here for freaking german lessons anyways.

having difficulty visualizing tans cyclooctene...plz help with a detalied structure...models are highly appreciated(provide link please)

Thank U sir it help me alot

Thank you so much

thank you !!

holy crap thank you so much1!!

Zusammen, not zussamen. Great video!

Haha this video is awesome! As a german it's incredibly funny how you pronounce this words. I thank for you the video, just to correct you with the words it's: Entgeeeeegen (the pronounciation) and it's written "zusammen" the rest is absolutely fine thank you

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.

Sal is the best

the way i remember this is samzies... like the way a thirteen year old girl would say the word same. works for me

😊Thanx!

Can you please tell me how is the most stable z or E and why I need it please

Very good explanation

im not sure if thats technically still E or Z considering E/Z naming is only used when all 4 groups differ, thats just the way i learned so I could be wrong but i know cis/trans would be the names that are prefered

You are the best 👏👏🌹

i like the way you pronounce "entgegen" :D it´s completely wrong but it sounds so cute xD and thanks for the video

Perfect

At first I had trouble remembering them. Then I realized E and opposite both start with vowels. Then Z and same start with consonants.

So it's different from 2-butene? Or are they the same?

@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.

Thank uuuu

Khan academy is best..

haha oh my gosh how cute Sal pronounce the german words .. :D

corrections: -‘entgegen’ actually means ‘opposite’ and is pronounced “ent-gaeg-en” -it’s actually ‘zusammen’ (not zussamen) and is pronounced “tsoo-zamm-en”

@triplemgaming5103

2 жыл бұрын

This doesn’t clear anything up for non-Germans lol

How to give name if the other one of double bond is ethanol?

THANKYOUUUUUUUUUUUU

SAYED BROUGHT ME HERE!

Does But-2-ene is the same as 2-Butene since our chemistry teacher recognize it?

@iakshow

7 жыл бұрын

James Piji Bulactiar Ya

@jorgebaquerizovalladolid3247

3 жыл бұрын

@ᴀʟ☹ stop were struggling enough as it is

Hey sal! Thank you so much fr the video. But what is the difference between conformation and configuration??

@amal-ti2zz

Жыл бұрын

conformations are different shapes or orientations of the same molecule- configurations are different arrangements that require the breaking of bonds

thank you

Based on my study, E and Z are only applicable for such molecules that are trisubstituted. In this case, it's more comfortable to use the cis-trans naming, provided the two substituents are identical.

Hi I would like to say that you explained it very well, I totally understood everything . But I would like to add that I am German and the german word "entgegen" means "contrary to" or "opposite" . Bye

V nice.

1:06 "Hey Sal that's also but-2-ene!" :-)

Zussamen 😂😎 finally something is named in my mother tongue

Thanks a lot for the video, but it's "zusammen" for together

"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.

How do you know if the element attached to a Carbon is a branch? Is it only a branch if it's Carbon? Could you have Halogens, H or NH2 as a branch?

This guy is boss

i like this. niceeeeeee

when i see Z i read it in my head like "Zis" since it sounds like cis. theyre not always the same thing but it helps me remember what it is :p

Wow 💝💝💝

Please make a video on this in bangla.So that,this can be helpul for me.

wish you had videos regarding cis and trans position on chair confirmations

@waytoobiased

2 жыл бұрын

wish you had videos regarding cis and trans position on gender confirmations

Hence the statement "We will do examples on whether or not to label something E vs trans, or Z vs cis on the next video." He was just doing an introduction on what they mean.

E is for entgegen which is German for opposite, z is zusammen which is German for together

great explanation but wht is the use of german weird words

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

"Entgegen" means opposite of smt in this case

Are they structural isomers ?

The way you pronounced ''Zusammen'', it should be written like this ''Susamen''

Do you just have to mention cis and trans when you have an alkene?

love your German

Thank you for your videos- they are great! I have a question pertaining to this one though. If both the "CH3" were on the right side of the double bond and the both "H", would this still be a Cis-But-2-ene?

@SuperSaiyaman3

9 жыл бұрын

if they were on the same side, it would actually be 2-methylprop-1-ene or 2-methyl-1-propene

@triplemgaming5103

2 жыл бұрын

@@SuperSaiyaman3 wouldn’t it be 1-methylprop-2-ene?

@triplemgaming5103

2 жыл бұрын

@@SuperSaiyaman3in other words would you start the carbon main chain from the side with the double bond or the side with the methyl group?

@Badushaz sal can! cgp books are good too

suammen so cute

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

We were taught that it's called butene-2, but but-2-ene is really funny to say so I'm gonna use it in English.

@emsci

Жыл бұрын

The former method is wrong, but-2-ene is the new IUPAC name 2-butene is pre-revision IUPAC name.

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

Why does the isomers behave differently chemically

What foreign languages are taught in American secondary schools?

If you came over to my place and asked me what that molecule was, the first thing I'd say is probably something along the lines of "Who are you and how did you get into my house"

=) awesome

Both correct, however but-2-ene is currently the IUPAC standard.

I have one question If we have one chlorine atom instead of hydrogen atom in the same compound ,then how we assign priority?

@parv_k

Жыл бұрын

dichloro dimethyl ethene

He didn't name the methyl group? 4:05?

the correct translation would be "opposite site"

If you came over to my place and led with that question I'd shut the door in your face

your videos are really great and very helpful, but that german pronunciation was unrecognizably wrong. (and the "translations" both for latin and german are a bit loose.)

do we call them diastereomers?

If you were to come over to my place I would never let you leave.

hahaha nice video really...zusammen not zussamen haha this spelling thnx very much