Isomers | Properties of carbon | Biology | Khan Academy

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  • Опубликовано: 15 окт 2024
  • Structural isomers, stereoisomers, geometric isomers, cis-trans isomers, and enantiomers.
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Комментарии • 146

  • @thomasr1072
    @thomasr1072 9 лет назад +576

    funny how i paid $400 dollars for a textbook and $800 for a class that doesn't teach me jack, but you put it in a way where i can learn the topic in under 10 minutes for free... I LOVE THE INTERNET!

    • @taylorbarton8576
      @taylorbarton8576 6 лет назад +17

      literally just thought the same thing.... Definitely spent more time watching Khan than reading my textbook

    • @thomase9514
      @thomase9514 6 лет назад +12

      I've been having similar thoughts for quite some time. Makes me question the utility of university

    • @juliansthoughts5641
      @juliansthoughts5641 5 лет назад +2

      I've been looking for something that can adequately explain this and finally here I am

    • @Arhamkothari753
      @Arhamkothari753 4 года назад +2

      Me too.I've been watching Khan academy since this year for physics and this really makes my topics clear.

    • @apoorvashekhawat8619
      @apoorvashekhawat8619 4 года назад +5

      $400 for a textbook???

  • @timtam3730
    @timtam3730 4 года назад +361

    All the dislikes are from teachers who couldn't explain this as well as this guy.

  • @AyeWhyDubb
    @AyeWhyDubb 6 лет назад +143

    I love his voice, it's like he loves teaching

  • @neelimazadar997
    @neelimazadar997 6 лет назад +19

    Your voice is calming. I was tense before I started watching your video, but I'm completely relaxed now.

  • @bouchranourelhouda2415
    @bouchranourelhouda2415 3 года назад +18

    I'm happy I understand english ... I'm Arabic and I study in French yet the only videos I find helpful are these !! It just shows how much important it is to learn languages!

  • @NilimaTariq
    @NilimaTariq 2 года назад +17

    Sal Khan, thank you once again for making chemistry comprehensible and relatable to me for the last 12 years.

  • @dreamliner707
    @dreamliner707 6 лет назад +20

    I could not understand AP Bio textbook explanation but this video was so easy to understand.

  • @dracomalfoysimp8591
    @dracomalfoysimp8591 2 года назад +13

    I love this video. I clearly understood the concept. Thanks a zillion! This has got to be the best one out there on this topic!

  • @goldenotis9703
    @goldenotis9703 6 лет назад +144

    Does this guy know everything?

  • @deepamehra587
    @deepamehra587 2 года назад +9

    Am from India 🇮🇳 ...and the way you explain is totally like a magic ❤️ this topic very difficult before this video
    And now cristal clear ... honestly thankyou so much sir ...👍☺️.

  • @Лізавета-э1и
    @Лізавета-э1и 11 месяцев назад +3

    hey khan! thanks a lot for this video:) we are from eastern european country and we are future chemists. so our english teacher Natalia tries to help us with professional english vocabulary. all material was really interesting and useful besides that the theme was already well known for us.
    we are sending u much love!
    2-8bit group

  • @georgiacohoon1257
    @georgiacohoon1257 3 года назад +5

    You are getting me through my degree, after watching an hour long lecture on this I did not understand however a 7 min video on here explains it all. Thank you!!

  • @booofpaxk
    @booofpaxk 3 года назад +2

    i love this guy and how he repeats every word/phrase twice or thrice, you're a hero

  • @Fluttershy212
    @Fluttershy212 11 месяцев назад +1

    I'm a nursing student 1st year and this was so helpful thanks 🙏

  • @shafshafeen5220
    @shafshafeen5220 7 лет назад +43

    That last BIOLOGICALLY made me laugh hard!!!😂😂
    at 6:43

  • @xeztan
    @xeztan 7 лет назад +17

    This is cool and all but how do scientists figure out the shape of all these molecules? Are they visible under special microscopes?

    • @daD3ATHBR1NG3R
      @daD3ATHBR1NG3R 6 лет назад +6

      "World's Most Powerful Microscope- Lawrence Berkeley National Labs just turned on a $27 million electron microscope. Its ability to make images to a resolution of half the width of a hydrogen atom makes it the most powerful microscope in the world."

    • @juicebox18
      @juicebox18 5 лет назад

      these are all theories i assume.

  • @ilikesoccer5799
    @ilikesoccer5799 2 года назад +1

    this the smartest guy in the world

  • @mishka777-xc4yd
    @mishka777-xc4yd Год назад +1

    did a better job than my college professor

  • @kittikei
    @kittikei 9 лет назад +9

    you draw so neatly c:

  • @candacearvymanlangitlopez6914
    @candacearvymanlangitlopez6914 7 месяцев назад +1

    thank you, mwaaa ❤

  • @umiimodagbe6891
    @umiimodagbe6891 2 года назад +1

    This is very nice his voice is convincing

  • @kkevan4138
    @kkevan4138 4 года назад +2

    Are Enantiomers and "optical Isomers" the same thing?

  • @yoyobeastgaming8204
    @yoyobeastgaming8204 3 года назад +1

    Thank you ☺️ sir .....before your lecture I was unable to understand this things but by your teaching I am feeling good as a student...and I love your voice 💜

  • @timtam3730
    @timtam3730 4 года назад

    I'm a humanities student in highschool but I takw biology. In biology, trans and cis fats can have the same chemical symbol but are structurally different.

  • @shenghe5613
    @shenghe5613 2 года назад

    thank you for summarizing my two hour lecture

  • @treeofmrytle8448
    @treeofmrytle8448 3 года назад

    Thankyou very machiii!! you make organic chem easy..

  • @onefortrees
    @onefortrees 3 года назад +1

    I was never good at chemistry in high school but I somehow understood this at 27. 🤔

  • @noah8244
    @noah8244 2 года назад +1

    The voice tells me to learn

  • @AbdulHaseeb-od6ie
    @AbdulHaseeb-od6ie 2 года назад

    Now this is how things are simplified, I thought that I am about to learn only one thing but I learn 4, and one even put of my syllabus, 1000 times better than 40 to 60 minutes long time wasting lecture

  • @shrads9187
    @shrads9187 6 лет назад +2

    Thank you so much. You are a great teacher

  • @jesusitrustinyou275
    @jesusitrustinyou275 4 года назад +1

    Thank you Khan Academy

  • @younesdeghima2663
    @younesdeghima2663 3 года назад

    i just studied this at school and i wanted to learn more things so thanks bro

  • @BLOSSOMOSEBIQUINNE
    @BLOSSOMOSEBIQUINNE 10 месяцев назад

    Well understood

  • @sawdahassan135
    @sawdahassan135 Год назад +1

    thanks😊

  • @HassanIQ777
    @HassanIQ777 Год назад

    I have a chem final tommorow lol tysm Sal

  • @younesdeghima2663
    @younesdeghima2663 3 года назад

    Just why would you dislike a video it showes you knowledge

  • @farahjamal3257
    @farahjamal3257 6 лет назад +1

    Thank you very much you're always saving my life!!

  • @Anush_Sivakumar
    @Anush_Sivakumar 3 года назад +1

    All my teachers are perfect, am just here to revise

  • @samugindert3042
    @samugindert3042 4 года назад

    This is absolutely freaking awesome. I'm just learning it to pick up a girl, but now I know everything I want to about isomers. Thanks :)

  • @danielrieger9677
    @danielrieger9677 6 лет назад +1

    perfectly explained, but please also write the formula for the enantiomere example

  • @scienceguys871
    @scienceguys871 2 года назад

    What a good explanation

  • @lenaalsaleem3769
    @lenaalsaleem3769 7 лет назад +1

    Awesome!! That's simple! Thanks a lot!!

  • @MotionisHere
    @MotionisHere 5 месяцев назад

    thanku sir well explained

  • @dmurray2978
    @dmurray2978 Год назад +3

    Cis Trans means something....else nowadays

    • @Alex-d4z6e
      @Alex-d4z6e 7 месяцев назад

      Hahaha (im trans and i think this is funny)

  • @debarxasraw8380
    @debarxasraw8380 7 месяцев назад

    Thanks a lot❤

  • @aliotako1647
    @aliotako1647 3 года назад +1

    man i love you

  • @arushgupta386
    @arushgupta386 4 месяца назад

    3:16, Q-> how can a SINGLE bond allow rotation but a DOUBLE bond won't????

  • @panchovilla7355
    @panchovilla7355 8 лет назад +1

    thanks I've been trying to figure this out all day :)

  • @shatboiiiheywaddup4232
    @shatboiiiheywaddup4232 8 лет назад +30

    salman khan my man!

  • @melissarainchild
    @melissarainchild 6 лет назад +1

    I just keep liking! Thank you so much :)

  • @oshinlepcha6921
    @oshinlepcha6921 7 лет назад

    It really helped me to understand the topic.

  • @chancebutler6472
    @chancebutler6472 3 года назад

    tyvm

  • @ScottCastrophotography
    @ScottCastrophotography 4 года назад

    What about optical and structural isomers?

  • @Kvenkatasateeshbabu8510
    @Kvenkatasateeshbabu8510 3 года назад +2

    All lovers 😍 of his voics like here
    👇

  • @obadahkal4764
    @obadahkal4764 4 года назад

    Thnx

  • @samasayed8699
    @samasayed8699 3 года назад

    There are many types of chemical formula , molecular formula is one of them . it shows the number of atoms in a compound without displaying its structure such as: ch3h4 . isomers occupies the same molecular formula not the same chemical formula.

  • @adryancavar7515
    @adryancavar7515 6 месяцев назад

    What are alpha, beta, gamma, delta isomers?

  • @chhunkimly3732
    @chhunkimly3732 8 лет назад +3

    Why do we need to know about the isomers?

  • @dhruvagrawal3515
    @dhruvagrawal3515 4 года назад +1

    does enantiomers count for water images too???
    if anyone knows the answer please respond...

  • @JFR-ig2tx
    @JFR-ig2tx 4 года назад

    i just finished chem and calc and psychology and never looked at my textbooks period

  • @abdulsamiarab5506
    @abdulsamiarab5506 6 лет назад

    Can you specifically define what the word superimposeble means.

  • @zyadmekawy1397
    @zyadmekawy1397 3 года назад

    What about optical Isomers?
    +isn't this topic teached in chemistry?

    • @KlasseCaldiny
      @KlasseCaldiny 3 года назад +1

      'optical isomers' are enantiomers (and maybe also cis isomers, I'm still learning)

    • @zyadmekawy1397
      @zyadmekawy1397 3 года назад

      @@KlasseCaldiny optical Isomers is a Chiraly Isomers that change the direction of light when light go through its solution.
      But generally it's a stereoisomer.
      And I'm still learning.

  • @GanondorfSSBU
    @GanondorfSSBU 3 года назад

    My god this was so helpful. Many thanks 🙏🏻

  • @karacnewland93
    @karacnewland93 9 лет назад

    Made easy :) thank u

  • @himanshubhushan3927
    @himanshubhushan3927 7 лет назад

    indian academy? nice video. makes science easier.

    • @sabiayy9298
      @sabiayy9298 7 лет назад

      no, they're working in foreign country but the ceo is indian

    • @DK_75
      @DK_75 5 лет назад

      @@sabiayy9298 No the CEO is Bengali.

  • @overweightactor
    @overweightactor 9 лет назад +20

    Cis-trans? Triggered!

    • @tgdhsuk3589
      @tgdhsuk3589 7 лет назад

      please sal or someone, how to know if hetero or homolytic fission takes place

    • @tgdhsuk3589
      @tgdhsuk3589 7 лет назад

      nvm i figured it out heres how i remember it
      homo-you are born naturally like that- natural tendency to like - or +
      hetero- you are induced
      cos laws if this society is opposite of what logic dictates!

  • @chetanreddy8025
    @chetanreddy8025 7 лет назад

    thank u so much dude.....

  • @jessicaprice5922
    @jessicaprice5922 9 лет назад

    WOW! Thanks!!

  • @adityabhosale4626
    @adityabhosale4626 7 лет назад

    Great video sir!!!!

  • @asyrafebo4609
    @asyrafebo4609 6 лет назад

    does they share the same chemical properties?

  • @farooqkoul8351
    @farooqkoul8351 6 лет назад

    Excellent

  • @astroHits-ipleo
    @astroHits-ipleo 7 месяцев назад +5

    Who is watching this at 2024 ❓❔

  • @pashtoonhacker9402
    @pashtoonhacker9402 8 лет назад

    thanks !

  • @rahafalhalabi360
    @rahafalhalabi360 8 лет назад

    hello what about functional isomers for any type they are related

  • @3rdEarlRussell
    @3rdEarlRussell 11 месяцев назад

    Same cardinality, different relation type

  • @zulughost860
    @zulughost860 5 лет назад

    How about constitutional isomers?

  • @5injl
    @5injl 7 лет назад +5

    His voice reminds me of mark Jefferson from life is strange 😂 am I alone on this?

    • @husainmithaiwala351
      @husainmithaiwala351 6 лет назад +6

      yes........yes you are

    • @jkay5082
      @jkay5082 3 года назад +1

      omg i hear it

    • @jkay5082
      @jkay5082 3 года назад +1

      dont mind that im 3 years late..

    • @5injl
      @5injl 3 года назад +1

      @@jkay5082 haha its okay, at least I'm not the only one

  • @prasadnaik4014
    @prasadnaik4014 6 лет назад

    What is coal an allotrope or compound??

  • @stephenprice3357
    @stephenprice3357 7 лет назад

    good stuff!

  • @plabanbhattacharjee6436
    @plabanbhattacharjee6436 5 лет назад

    Sir why the rotation of OH and H group in the 3rd carbon of glucose is different.. Please answer me

  • @andrewtran3995
    @andrewtran3995 4 года назад

    love you

  • @g4vdero
    @g4vdero 4 года назад +1

    Ketamine

  • @lunardisease1436
    @lunardisease1436 2 года назад

    I have a Chem final in like 40 minutes

  • @zracklfr1693
    @zracklfr1693 9 лет назад

    my chemistry teacher pronounces it as iiizzzz...
    .ooommmeerrss

    • @timtam3730
      @timtam3730 4 года назад

      I'm a humanities student in highschool so I take History, Economics and Geography but I also take Biology as an extra subject. In biology, trans and cis fats are isomers.

  • @omarel-nemr6506
    @omarel-nemr6506 3 года назад +1

    5:12 i can just flip it and every thing well be fine

  • @shahed51247
    @shahed51247 11 месяцев назад

    يلي جاي من نوطةpre x تفضلو لهون🤣🤣🤣🤣🤣

  • @xaruntakasmokaal2221
    @xaruntakasmokaal2221 7 лет назад

    Asc

  • @Anush_Sivakumar
    @Anush_Sivakumar 3 года назад +1

    I wasted 50 pounds on a trash t.b lol

  • @lucentisgaming
    @lucentisgaming 9 лет назад

    :)

  • @shubhambhosale4723
    @shubhambhosale4723 7 лет назад

    plz improve your way of presentation

  • @snuggisthecute
    @snuggisthecute 7 лет назад

    But you don't have to say a word over and over as you write it... I can't complain too much because this is free though...

  • @bambammika2509
    @bambammika2509 5 месяцев назад

    Thank you

  • @alexisreal9507
    @alexisreal9507 7 лет назад

    thanks a lot