there's a huge difference between your teacher rushing through the material telling u that certain things "just happen" and actually explaining the steps and demonstrating why electrons behave this way. Thank you.
Okay sal, it isnt like H-Br will go into water to dissociate into into H+ and Br- and then it attacks the c=c double bond so that an electron pair is transfered on one carbon. which gives one carbon a negative charge and another a positive charge. The H+ will be attracted to negative carbon and Br- to postive carbon. electron pair will shift on terminal carbon since alkyl grp has a repelling effect.........
@goldensilverstar it means it attracts the shared electron in a covalent bond towards it self ( since nuclear charge on BR >> nuclear charge on H+)... thats what he means by hogging!!!
quick question about regioselectivity, why would the h attach to the left side of the double bond preceeding the bromide step, would they be able to be arranged vice versa?
@icemanbto see electron pair will be transferred on the left side...means h will be attached on the left side since its positive and attracted 2wards negative carbon... Why is electron pair shifted to left not right..... it suffers repulsion from electrons of alkyl grp (CH2-CH2-CH3) on the right side.........
hey dudes...how can I make 3D reaction mechanisms??that with stiks and balls...where we can see how links get broken and new ones are made??plz help a link or a name??plz
@khanacademy Thank u very much , the best vid. ever , but do you have vids about ( dieens, and allyl systems) and (conjugation and aromaticity) (substitution reactions of aromatic compounds) ?
Thank u very much , the best vid. ever , but do you have vids about ( dieens, and allyl systems) and (conjugation and aromaticity) (substitution reactions of aromatic compounds) ?
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A couple of people accidentally clicked the unlike button!!
Alwingeorge2020 1 week ago
How do you know about EVERYTHING!!Thx man genious
MrNura96 2 weeks ago
there's a huge difference between your teacher rushing through the material telling u that certain things "just happen" and actually explaining the steps and demonstrating why electrons behave this way. Thank you.
apples220022 3 weeks ago
= O I actually learned.
apples220022 3 weeks ago
Okay sal, it isnt like H-Br will go into water to dissociate into into H+ and Br- and then it attacks the c=c double bond so that an electron pair is transfered on one carbon. which gives one carbon a negative charge and another a positive charge. The H+ will be attracted to negative carbon and Br- to postive carbon. electron pair will shift on terminal carbon since alkyl grp has a repelling effect.........
Ayoosh101 1 month ago
what does he mean by hogging electrons
goldensilverstar 2 months ago in playlist Khan Academy Organic Chemistry
@goldensilverstar it means it attracts the shared electron in a covalent bond towards it self ( since nuclear charge on BR >> nuclear charge on H+)... thats what he means by hogging!!!
Ayoosh101 1 month ago
Nevermind i just watched the markovnikov video, #khanisgod
icemanbto 2 months ago
quick question about regioselectivity, why would the h attach to the left side of the double bond preceeding the bromide step, would they be able to be arranged vice versa?
icemanbto 2 months ago
@icemanbto see electron pair will be transferred on the left side...means h will be attached on the left side since its positive and attracted 2wards negative carbon... Why is electron pair shifted to left not right..... it suffers repulsion from electrons of alkyl grp (CH2-CH2-CH3) on the right side.........
Ayoosh101 1 month ago
"So now everyone is happy again" hahaha. Epic line :) btw, i really don't understand my chem teacher but his video rocks \m/ thank you so muuuch :3
bollozosh 3 months ago 2
how do you know so much abotu so many topics...ur amazing
lolahoneyforyou 7 months ago
You are the best Sal Khan!!!
japanezeboi 8 months ago
Seriously love your work, please keep going, you're the best teacher I've ever come across! Thanks a lot!
bfmvshinigami 8 months ago
hey dudes...how can I make 3D reaction mechanisms??that with stiks and balls...where we can see how links get broken and new ones are made??plz help a link or a name??plz
ghigaful 9 months ago
haha 10:25 so now everyone is happy again!
samcth54 10 months ago 3
you are just awesome with your concepts and at the same time you can explain them
like a true genius. man u r just too good. keep up your good work. it really helps.
ameer2300 11 months ago 18
This has been flagged as spam show
@khanacademy Thank u very much , the best vid. ever , but do you have vids about ( dieens, and allyl systems) and (conjugation and aromaticity) (substitution reactions of aromatic compounds) ?
lamvutran 1 year ago
Thank u very much , the best vid. ever , but do you have vids about ( dieens, and allyl systems) and (conjugation and aromaticity) (substitution reactions of aromatic compounds) ?
lamvutran 1 year ago
how much does an atom like to hug electrons!? HAHAHA
thanks!
milkiorange 1 year ago
@milkiorange "hog" not hug
tirus909 4 months ago
Better than my chemistry teacher explains to me!!
fongg2 1 year ago 15
Quite unusual how the name of the mechanism isn't noted though. For anyone wondering its electrophilic addition
SuperSonic44 1 year ago
Thank you, truly.
ShahoftheShahs 1 year ago
great you're the best
reygun30012 1 year ago
Twice the same video, Sal?
norwayte 1 year ago