Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22

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  • เผยแพร่เมื่อ 27 ก.ย. 2024

ความคิดเห็น • 1.5K

  • @crashcourse
    @crashcourse  4 ปีที่แล้ว +269

    Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
    Download it here for Apple Devices: apple.co/3d4eyZo
    Download it here for Android Devices: bit.ly/2SrDulJ

  • @Madirlblue
    @Madirlblue 8 ปีที่แล้ว +1252

    Other people are complaining that you talk to fast in comments but I personally am incredibly grateful- there are so many ancient professors this website and in my lectures droning on for hours on these subjects. Thank you. The way you structure things keeps me entertained and safe from failing midterms

    • @rox8516
      @rox8516 6 ปีที่แล้ว

      Madirlblue i

    • @dominoscustomersupport4373
      @dominoscustomersupport4373 5 ปีที่แล้ว +17

      That's so true!!! I love that he talks fast because this way he can teach tons of lessons of info into a maximum of 10-15 minutes. Way better than sitting through hours of college courses and weeks of school.

    • @isabelbourke851
      @isabelbourke851 5 ปีที่แล้ว +17

      Am I the only one who loves watching on x2 speed 😆

  • @generic_flower
    @generic_flower 8 ปีที่แล้ว +2623

    Ive decided to take AP Chem.
    I've signed up for death.
    I've decided to take AP Comp Sci at the same time.
    I've signed up for a very painful death

    • @ricb.7067
      @ricb.7067 5 ปีที่แล้ว +44

      I will pray for you😢😂

    • @daiyaanhasan2235
      @daiyaanhasan2235 5 ปีที่แล้ว +2

      Which uni?

    • @erictm8144
      @erictm8144 5 ปีที่แล้ว +10

      Actually doing the same thing this year, watching this whole series the day before the mock exam for Chemistry, already took my Comp Sci mock exam and got a 4 so I'm hoping I can get a 3 or 4 on this one

    • @Wooktent
      @Wooktent 5 ปีที่แล้ว +21

      I'm gonna bomb this AP Chem exam tomorrow. Hope you are doing well, 2-years-older version of you.

    • @ultraviolet6989
      @ultraviolet6989 5 ปีที่แล้ว

      😂

  • @zetlaux
    @zetlaux 8 ปีที่แล้ว +187

    To those saying he is too fast: some people actually think and operate at that rhythm, and finding something that delivers at their is a rare find. You can always hit replay and watch it again. Plus, the amount of chemistry he covers in under 10 minutes is super impressive. This should feel intense. This is weeks or months of college in a few minutes.

    • @zetlaux
      @zetlaux 8 ปีที่แล้ว +2

      *that delivers at their pace

  • @KasraChehrazi
    @KasraChehrazi 9 ปีที่แล้ว +3154

    Everyone please stop saying talk slower... it is called crash course it is supposed to go fast, if you want it to be slow click the gear icon then hit speed and press .5, not .25. (WARNING: He will sound drunk.)

    • @KasraChehrazi
      @KasraChehrazi 8 ปีที่แล้ว +42

      That's what I should've said XD

    • @alinarodriguez9395
      @alinarodriguez9395 8 ปีที่แล้ว +18

      +Kasra Chehrazi lol he does

    • @sophiemiller5195
      @sophiemiller5195 8 ปีที่แล้ว +9

      +Kasra Chehrazi hahahaha I needed this

    • @Oddpistachio1
      @Oddpistachio1 8 ปีที่แล้ว +12

      +Kasra Chehrazi It's more fun to listen to it slowed down anyway, because of this reason. haha

    • @Oddpistachio1
      @Oddpistachio1 8 ปีที่แล้ว +6

      +Kasra Chehrazi Try listening to it on the 2 speed.

  • @cassandratodd6732
    @cassandratodd6732 8 ปีที่แล้ว +3145

    I have finals tomorrow, so I'm watching as many as I can
    I'm still screwed

    • @H4nn4hL
      @H4nn4hL 8 ปีที่แล้ว +58

      Me too.. *loud sobbing*

    • @evarazia9714
      @evarazia9714 8 ปีที่แล้ว +9

      Same here😢

    • @ayem4542
      @ayem4542 8 ปีที่แล้ว +5

      did your results come out yet?

    • @912sonic
      @912sonic 8 ปีที่แล้ว +10

      Did ya pass ya goof?

    • @cassandratodd6732
      @cassandratodd6732 8 ปีที่แล้ว +44

      912sonic I got at least a C

  • @EnderAnimals4
    @EnderAnimals4 4 ปีที่แล้ว +575

    everyone else: "he talks to fast"
    me, speed studying: *watching on 1.75 speed, with CC, losing my mind but its working*

  • @MikaThakkar
    @MikaThakkar 11 ปีที่แล้ว +327

    This is how I study...

    • @ryanoconnor8381
      @ryanoconnor8381 5 ปีที่แล้ว +11

      I just got a 100% on my chem test because of this. Thank you so much!

    • @aryanshrivastava8312
      @aryanshrivastava8312 5 ปีที่แล้ว +4

      From India? Cause it is pretty rare

    • @venerablexcutioner1113
      @venerablexcutioner1113 5 ปีที่แล้ว +1

      Did it work because I plan on using this method when I resume.... (My Dad made me study)😢😢😢😢😢

    • @winny6167
      @winny6167 4 ปีที่แล้ว +4

      @@aryanshrivastava8312 from India 🇮🇳🇮🇳🇮🇳

    • @diyapudota
      @diyapudota 4 ปีที่แล้ว

      @@winny6167 ayyyyyy india

  • @esmeraldagonzalez3795
    @esmeraldagonzalez3795 9 ปีที่แล้ว +826

    When hank said "atoms are a lot like us" I thought "atoms are us"

    • @lindseymiller8805
      @lindseymiller8805 9 ปีที่แล้ว +3

      +Esmeralda Gonzalez because we are toys! :) ...Oh I guess sometimes advertising still works better than education.

    • @jorgepadua5802
      @jorgepadua5802 9 ปีที่แล้ว +10

      +Esmeralda Gonzalez We are atoms.

    • @ismailmajed5555
      @ismailmajed5555 9 ปีที่แล้ว +1

      +Esmeralda Gonzalez He meant act like us but you got a point

    • @skategarbage
      @skategarbage 9 ปีที่แล้ว +3

      +Esmeralda Gonzalez This is the way I see it: atoms can exist without us, we can not exist without atoms... so we are atoms but atoms aren't us. He meant that atoms behave like us.

    • @ismailmajed5555
      @ismailmajed5555 9 ปีที่แล้ว +2

      How will we live if the universe is not made up of atom

  • @Tionaintown876
    @Tionaintown876 10 ปีที่แล้ว +377

    I'm here because I didn't pay attention in chemistry class.
    And my exam is tomorrow.

    • @themagnoliainnbedbreakfast6418
      @themagnoliainnbedbreakfast6418 10 ปีที่แล้ว +6

      Me too
      I'm trying to cram everything in my head for now

    • @thepersonnooneknows
      @thepersonnooneknows 5 ปีที่แล้ว +8

      How'd it go (I'm so late but still)

    • @blakebauman6374
      @blakebauman6374 4 ปีที่แล้ว +8

      @@thepersonnooneknows Hey, your name. Tell me about yourself so I can get to know you. Apparently no one knows you, and that would suck (for many people at least). My name is Blake, I like pretty much every field of science, synthwave music, exploring nature, philosophy, working out: what about yourself?

    • @wgb920
      @wgb920 4 ปีที่แล้ว +1

      i would give you a like but u r at 100 and i dont want to be the one to break it:)

  • @kaiyatiwari7233
    @kaiyatiwari7233 4 ปีที่แล้ว +130

    crash course rlly said gay rights with Bert and Ernie

  • @shanewilliams7627
    @shanewilliams7627 8 ปีที่แล้ว +498

    Hot nerdy vampire girl in your chemistry class, it gets intense *shows picture of Marceline*😂😂😂😂😂👏🏽

    • @rangarolls6018
      @rangarolls6018 8 ปีที่แล้ว +11

      Hot cannot be in the same sentence as "nerdy vampire girl" I think what u meant was "eye cancer"

    • @AngelSamael
      @AngelSamael 8 ปีที่แล้ว +18

      +Shane Williams not very nerdy though.
      Her girlfriend on the other hand...

    • @sethwhittle3137
      @sethwhittle3137 4 ปีที่แล้ว

      Adventure Time is awesome!

  • @classiseverything2me
    @classiseverything2me 8 ปีที่แล้ว +41

    Awww thank you....this Crash Course truly saved my grade after struggling for WEEKS. You've fully explained this concept very effectively and I soooo appreciate it. AND you're HILARIOUS!!!

  • @ladyrage7849
    @ladyrage7849 9 ปีที่แล้ว +313

    reading through the comments like "none of you know what 'crash course' means, do you?"

    • @arch2044
      @arch2044 5 ปีที่แล้ว

      I do

    • @coloraturaElise
      @coloraturaElise 4 ปีที่แล้ว +1

      You know that people don't actually read, don't you?

  • @guitaro5000
    @guitaro5000 10 ปีที่แล้ว +742

    This is actually more complicated than a lecture from school.

    • @oliverwalter2850
      @oliverwalter2850 10 ปีที่แล้ว +7

      agree

    • @jamessobieski6841
      @jamessobieski6841 10 ปีที่แล้ว +201

      because he's putting all the info you might learn in a week into 9 minutes

    • @jacobburger2057
      @jacobburger2057 10 ปีที่แล้ว +21

      James Sobieski *week
      Trololololol

    • @justbunnybro7363
      @justbunnybro7363 10 ปีที่แล้ว +55

      if you want to retain and understand the information from his videos then you may want to have the Pause button ready and some notes
      you may ultimately be spending 30 minutes on a 10 minute video but you'll have truly learned something and have notes to look back to. at this point in CrashCourse Chemistry it's not covering standard HS Chemistry or CHEM 101

    • @Lisagb3
      @Lisagb3 10 ปีที่แล้ว +21

      JustBunnyBro this is stuff you learn in college in the premed/for majors courses
      -someone who is taking those courses

  • @haydnsorenson1741
    @haydnsorenson1741 8 ปีที่แล้ว +49

    Who else is here for finals?

  • @3rkid
    @3rkid 4 ปีที่แล้ว +48

    At 0:13 they had Bert get married to Ernie on June 26th which is funny since that's the day in 2015 that the Supreme Court legalized same-sex marriage in the US but this video animated years before.

  • @sameersheikh5301
    @sameersheikh5301 8 ปีที่แล้ว +215

    BROOOOOOOO they even included a Bert loves Ernie joke. Wow. XD.

    • @assmane999
      @assmane999 8 ปีที่แล้ว +14

      +Golam, In Brackets Yeah, they got married. Who didn't see that coming?

    • @SomesingVague
      @SomesingVague 6 ปีที่แล้ว +2

      I ship it

  • @maymiscalculate7859
    @maymiscalculate7859 7 ปีที่แล้ว +60

    Thanks for getting me an A! because my teacher can't teach...

  • @joeey2162
    @joeey2162 8 ปีที่แล้ว +56

    And that was a very discreet TFIOS reference I saw there...

    • @tnttiger3079
      @tnttiger3079 8 ปีที่แล้ว +22

      his brother wrote the book, if you didnt know.

    • @carlalvares9218
      @carlalvares9218 7 ปีที่แล้ว +5

      I thought you were joking and then i looked it up

    • @asitas
      @asitas 7 ปีที่แล้ว +9

      I love it when people realise in the comments that the crash course John Green and the author John Green are same 😂😂

  • @emmiethedoodle14
    @emmiethedoodle14 9 ปีที่แล้ว +20

    If he's talking too fast turn on the subtitles it's so much better! And if you're taking notes, turn on the subtitles and pause when something important pops up!

  • @majorgeek8135
    @majorgeek8135 9 ปีที่แล้ว +101

    Can you guys make math videos?

    • @sm_r-ig4mi
      @sm_r-ig4mi 6 ปีที่แล้ว +5

      watch Big Shaq - Man's Not Hot. Theres lots of *quick* maths for u

    • @youre_totally_right_but_
      @youre_totally_right_but_ 6 ปีที่แล้ว

      They have statistics now

  • @jengeorge9001
    @jengeorge9001 10 ปีที่แล้ว +36

    THANK YOU THANK YOU THANK YOU!!!! You have such an amazing way of explaining things! I am currently working my way through the Biology crash course but headed over here to get better understanding of the different types of bonds... you make it so easy to understand! so again... THANK YOU!!

  • @XPimKossibleX
    @XPimKossibleX 9 ปีที่แล้ว +21

    6:13 that sneaky annotation though. good job editor.

  • @TheFireflyGrave
    @TheFireflyGrave 10 ปีที่แล้ว +171

    Coming in 2016: Crash Course Relationships.

    • @sudhamshusuri1844
      @sudhamshusuri1844 6 ปีที่แล้ว +8

      2018 mate still waiting for it

    • @collegepenetration1968
      @collegepenetration1968 5 ปีที่แล้ว +7

      2019 is on its way. What gives?

    • @baozelin245
      @baozelin245 5 ปีที่แล้ว +5

      @@collegepenetration1968 2019 is here, 2020 is our best hope now

    • @beshoybahaa150
      @beshoybahaa150 5 ปีที่แล้ว +4

      @@baozelin245 lol

    • @szbbhc
      @szbbhc 4 ปีที่แล้ว +4

      2019 is nrly gone, surely ill stop being lonely in 2020

  • @TheAmethystStar101
    @TheAmethystStar101 10 ปีที่แล้ว +56

    "Augustus is in a relationship with Hazel." 3:45 pm, Jan. 10th, 2012 (xD hahahha Hank) 0:12

  • @cindyqin4762
    @cindyqin4762 ปีที่แล้ว +6

    me hitting the replay button for the 2 millionth time:

  • @POTATOCHOCOLATE13
    @POTATOCHOCOLATE13 11 ปีที่แล้ว +5

    I am tired just listening to you!!!! I have an exam tomorrow and I am so glad we only covered the minimum on ionic and covalent bonds!

  • @Zoe-ye6dy
    @Zoe-ye6dy 8 ปีที่แล้ว +56

    I'm crying. We had a sub in Chemistry today and she put this on and I literally screamed and she looked at me like I was crazy. I was on the verge of tears I was so excited omg

    • @omarpinon2973
      @omarpinon2973 6 ปีที่แล้ว +7

      Zoe I would too wtf

    • @rajeshzambani3678
      @rajeshzambani3678 6 ปีที่แล้ว +4

      Zoe wht made u excited

    • @jamesecroyd
      @jamesecroyd 5 ปีที่แล้ว +4

      Zoe Jesus Chris you sound insufferable

  • @zpolygon95
    @zpolygon95 11 ปีที่แล้ว +4

    I wish I had this when I took chem... Hank explains EVERY topic so much more comprehensively than my chem teacher (who may have never actually learned the subject herself)

  • @usernamechoosed8
    @usernamechoosed8 8 ปีที่แล้ว +9

    Chemistry is so much more interesting than Physics! 🙆‍♂️

  • @panizsalehi1968
    @panizsalehi1968 5 ปีที่แล้ว +3

    Another reason why we call “Love” chemistry :) it’s just fascinating!

  • @AGuywho_MakesGames
    @AGuywho_MakesGames 8 หลายเดือนก่อน +1

    you are a life saver and i now devote my subscription to you

  • @michaeltank1587
    @michaeltank1587 9 ปีที่แล้ว +3

    You and John are this AP Students Life Saver!

  • @robertmoore107
    @robertmoore107 9 ปีที่แล้ว +1

    CrashCourse is my favorite youtube channel. So many videos on so many different subjects!!

  • @madhureshminoshi4272
    @madhureshminoshi4272 5 ปีที่แล้ว +3

    trash talk ends and the real video starts at 1:43

  • @dominique7784
    @dominique7784 6 ปีที่แล้ว +3

    Honestly enjoyed this video and understood more after i was done watching. I watched this in my chemistry class and i'm re watching it for my final. I would recommend taking notes on the video for a quick and easy summary. I put the subtitles on which made it easier, changing the speed to something slower may also help others who think the video is to fast.

  • @kenil3469
    @kenil3469 10 ปีที่แล้ว +3

    These videos are getting me through high school, thank you!

  • @iudexmortem1139
    @iudexmortem1139 10 ปีที่แล้ว

    @ Becky Laprevote
    Ionic bonding is where they give and take ions and occurs between metals and non metals
    Covalent is where they share ions and it occurs between non metals
    Mettalic is where the outer electrons become delocalised and it occurs between metals

  • @MegaFittie
    @MegaFittie 10 ปีที่แล้ว +17

    I SAW THAT GUS AND HAZEL REFERENCE AT THE START HANK ;_;

  • @MakeMeThinkAgain
    @MakeMeThinkAgain 8 ปีที่แล้ว +75

    The metallic bond didn't get any love here.

    • @milanstevic8424
      @milanstevic8424 6 ปีที่แล้ว

      that's an ionic bond made up with metal ions

    • @MK-fo3ec
      @MK-fo3ec 5 ปีที่แล้ว

      @@milanstevic8424 im so confused please explain 🙏

    • @MK-fo3ec
      @MK-fo3ec 5 ปีที่แล้ว

      @@milanstevic8424 im so confused please explain

    • @milanstevic8424
      @milanstevic8424 5 ปีที่แล้ว +3

      @@MK-fo3ec metallic bond = ionic bond made up with metal ions
      in other words, all metallic bonds are ionic bonds. not every ionic bond is a metallic one.
      nothing to be confused about.

    • @Noor-bk1on
      @Noor-bk1on 5 ปีที่แล้ว

      @@milanstevic8424 Someone can be confused about something, if they don't have the right understanding of the material.

  • @Shipoopi1234
    @Shipoopi1234 11 ปีที่แล้ว

    Coulomb's Law describes the force on a charged particle. Here they are showing the potential energy of the particle, which is in fact proportional to 1/r

  • @huntertheprotogen
    @huntertheprotogen 4 ปีที่แล้ว +12

    "Augustus is in a relationship with Hazel." 0:12
    You thought you could just reference your brother's book and not have me notice Hank??

  • @chadbierman8058
    @chadbierman8058 5 ปีที่แล้ว +2

    I remember watching this a year ago when I was taking biology realizing it was for chemistry, and now here I am in chemistry watching it again!

  • @hiarchie
    @hiarchie 4 ปีที่แล้ว +16

    Hank: *"atoms are a lot like us"*
    Me, an intellectual: *"atoms ARE us"*

  • @sparkyblossom
    @sparkyblossom 10 ปีที่แล้ว +1

    Could you possibly start a CrashCourse Physics series? :)

  • @ethankurtzvideos
    @ethankurtzvideos 7 ปีที่แล้ว +12

    At 5:57 seconds you can see an iron man falling columbs tuber

  • @arctic_desert
    @arctic_desert 8 หลายเดือนก่อน +2

    I am watching this in my 30s in the year 2024, wild

  • @knobtwista
    @knobtwista 10 ปีที่แล้ว +2

    Thank you for existing, Hank & Co! This helped me study fore a test I have soon!

  • @milliebysh526
    @milliebysh526 10 ปีที่แล้ว +10

    Wow...... TFIOS and Twilight references AND complicated Chemistry??? This is what I call GCSE revision :D

  • @lexihenderson135
    @lexihenderson135 9 ปีที่แล้ว +7

    I do not study for my Chem tests, I watch crash course 😍

  • @Annika9517
    @Annika9517 8 ปีที่แล้ว +2

    Thanks for these Videos. I'm not sure if they'll help me with university biochemistry but I hope !!

  • @WiseWik
    @WiseWik 11 ปีที่แล้ว +2

    Thank you so much Hank and whole CC team! I finally start to like and respect chemistry which I use to hate in school.

  • @AranelAlassiel
    @AranelAlassiel 11 ปีที่แล้ว

    Hey, that's an awesome fundamental question! If you go back and watch the CC episode on electrons, Hank explains how electrons reside in different energy states--shells contain subshells, which contain orbitals. Most atoms abide by either the octet or the duet rule. The principle for each remains the same: in order to gain maximum stability (lowest energetic state), an electron may be gained or lost to fill up or diminish the overflow of a shell. This is why the electrons don't re-transfer. :)

  • @appocalypse2806
    @appocalypse2806 10 ปีที่แล้ว +29

    2:25 Marceline the vampire queen from adventure time?

    • @MasterGamer2853
      @MasterGamer2853 6 ปีที่แล้ว +3

      YESSS SOMEONE NOTICED

    • @dominoscustomersupport4373
      @dominoscustomersupport4373 5 ปีที่แล้ว +1

      Yay it wasn’t just me that got hyped

    • @applebone3254
      @applebone3254 5 ปีที่แล้ว +1

      amazing world of gumball better

    • @coldestsun2095
      @coldestsun2095 5 ปีที่แล้ว +1

      @@dominoscustomersupport4373 no

    • @diyapudota
      @diyapudota 4 ปีที่แล้ว

      JAKE THE DOG AND FINN THE HUMAN LIVE TOGETHER AS ONE ADVENTURE TIME

  • @yutaoc
    @yutaoc 11 ปีที่แล้ว +2

    What about Metallic Bonds? And which bond type is the strongest?

  • @ElBounch
    @ElBounch 9 ปีที่แล้ว +14

    minute 4:00
    CHILDHOOD TRAUMA ALERT!!!

  • @NitKop
    @NitKop 11 ปีที่แล้ว

    A co-ordinate covalent bond or a dative bond is a type of covalent bond in which both the electrons of the shared electron pair are donated by the same radical. For example, the co-ordinate bond between hydrogen ion and water in hydronium ion. And yes, acids like HCL are polar covalent. You can tell this by the large difference in electronegativity of H and Cl.

  • @okkh4985
    @okkh4985 4 ปีที่แล้ว +32

    Me: struggling with Honors chemistry and doesn’t know how to study

  • @strawberryiesful
    @strawberryiesful 9 ปีที่แล้ว +1

    "That hot nerdy vampire girl in your chemistry class." Hank just talked about the new Twilight book 2 years in advanced, wow. :D

  • @ninaklaser7162
    @ninaklaser7162 10 ปีที่แล้ว +3

    Can you do a video on hybridization and valence bond theory?

  • @clairekim3959
    @clairekim3959 8 ปีที่แล้ว +3

    0:12... The Fault in Our Stars...
    *Goes into a corner*

  • @1901180108
    @1901180108 11 ปีที่แล้ว +4

    If your textbook doesn't talk about bond length, you probably don't have to worry about it for the test. I wish you the best of luck with your class! :)

  • @cbpsd
    @cbpsd 11 ปีที่แล้ว

    Thanks for acknowledging the viewers and lovers of Crash Course

  • @warri7948
    @warri7948 7 ปีที่แล้ว +5

    7:25 "The NaCl bond is, in fact, quite strong"
    places NaCl into water
    instantly dissolves, bond breaks XD

  • @TheAshbashwins
    @TheAshbashwins 7 ปีที่แล้ว

    Dear Hank Green,
    Your brother might have been more charismatic but you helped me on my chemistry test. And in the end, isn't that the only thing that matters.
    Cheers

  • @kraziiass
    @kraziiass 10 ปีที่แล้ว +11

    O.o I kinda got lost and spaced out while he was talking yet I understand what he is trying to say at the same time. cool video XD

    • @gol.drodger5261
      @gol.drodger5261 10 ปีที่แล้ว +1

      No you didn't why lie.

    • @kraziiass
      @kraziiass 10 ปีที่แล้ว

      -_- how would you know?

    • @gol.drodger5261
      @gol.drodger5261 10 ปีที่แล้ว

      Nah am playing just wanted to get your attention
      You on Instagram?

    • @kraziiass
      @kraziiass 10 ปีที่แล้ว

      o: No.............lol

    • @gol.drodger5261
      @gol.drodger5261 10 ปีที่แล้ว

      I'm in need of a way to contact you tho 😩😩😩

  • @JoffesThoughts
    @JoffesThoughts 11 ปีที่แล้ว +2

    "Augustus is in a relationship with Hazel."
    Brilliant.

  • @dianasalles0
    @dianasalles0 9 ปีที่แล้ว

    I can't stop watching these.

  • @Abominatrix650
    @Abominatrix650 9 ปีที่แล้ว +10

    Dear Crash Course, can you please put subtitles in your chemistry videos? Or at least, Hank, could you slow down the narration a bit maybe? Either of these changes will be very appreciated

    • @Orikron
      @Orikron 9 ปีที่แล้ว +3

      It's perfectly fine for me.

    • @MsJovi102
      @MsJovi102 7 ปีที่แล้ว

      Check out Khan Academy...I used them and come here for a concise review. :)

    • @krysantemumma
      @krysantemumma 6 ปีที่แล้ว

      Play it at a slower speed

  • @rehmansoomro772
    @rehmansoomro772 6 ปีที่แล้ว

    thanks HANK ur lectures make chemistry easy to understand and if anyone of u is getting stuck to understand u can also see subtitles and i dont think that he talk too fast HANK has no need to slow his speed instead u guys need to enhance ur listening power

  • @Hi-wb6fh
    @Hi-wb6fh 5 ปีที่แล้ว +4

    Omg i saw MARCILYN!
    Adventure time's the best

  • @6thHorseMan
    @6thHorseMan 8 ปีที่แล้ว

    I think you are mixing up the different ways to look at Coulomb's Law.
    For Coulomb's Law:
    F= (ke*q1*q2)/(r^2)
    this is simliar to the gravitational force equation
    F = (G*m1*m2)/(r^2)
    Force is in Newtons.
    When we walk over into chemistry land...
    Modified Coulomb's Law for lattice energy:
    E= (k*Q1*Q2)/(r)
    Energy in joules.
    I hope this helps.
    Up and Atom!

  • @kdavies1565
    @kdavies1565 11 ปีที่แล้ว

    I really like the checklist/summary at the end of these videos, it's a well needed checkup to make sure i haven't forgotten anything (i tend to daydream, nothing against the videos, just me)

  • @claudekennedy7855
    @claudekennedy7855 8 ปีที่แล้ว

    These videos are SO helpful, you dont understand. We cannot thank you enough.

  • @TeebinJones
    @TeebinJones 9 ปีที่แล้ว

    shoutout to this guy for helping me pass chemistry

  • @BirdsOnPowerLines
    @BirdsOnPowerLines 5 ปีที่แล้ว

    I was using this video in my Chemistry class to help my students visualize the bonds. I had set up the link in my lecture slides a few month ago. BUT I ended up watching the piece that Sunday Morning did on John from 2014 on TH-cam the night before actually giving the lecture. Cue in 'just like the neighborhood kids.... part' - I laughed out loud. Sorry Hank.... Not good when your class sees their professor (me) start to laugh in the middle of a teaching spot. LOL. Don't forget to be awesome.

  • @thomasjacquet3449
    @thomasjacquet3449 9 ปีที่แล้ว +4

    Hello ! Thank you for your work, it helps me a lot even if I'm french I manage to follow. Even if you are all speedy ^^
    Could you make a video on the complexation reactions ? Thanks, keep up the good work =D !

  • @tomledge1
    @tomledge1 11 ปีที่แล้ว

    What about weirder bonds like pi bonds?
    Also, is that OH functional group on alcohols the reason for them being so good at dissolving stuff?

  • @noahjinmama
    @noahjinmama 4 ปีที่แล้ว +3

    I literally had to put him on slowmo to hear

    • @GP-eh1rd
      @GP-eh1rd 4 ปีที่แล้ว

      yeah me too

  • @mickeyg.c.1654
    @mickeyg.c.1654 5 ปีที่แล้ว

    Wow. I figure if I watch it enough of times it will start to sink in

  • @urjakohli3715
    @urjakohli3715 9 ปีที่แล้ว +15

    u shud be my reg chem teacher

    • @ExpiredCartonOfEggNogg
      @ExpiredCartonOfEggNogg 9 ปีที่แล้ว +6

      Said EVERYONE THAT HAS DONE CHEMISTRY ... Ever

    • @9999rats
      @9999rats 9 ปีที่แล้ว +2

      Urja Kohli You need a new english teacher...

    • @urjakohli3715
      @urjakohli3715 9 ปีที่แล้ว +2

      don't you understand that I was writing that in short form? Is this better for you, grammar cop? By the way, you should learn how to spell your own name before you go judging other people's English.

    • @9999rats
      @9999rats 9 ปีที่แล้ว

      Urja Kohli What did I spell wrong?

    • @9999rats
      @9999rats 9 ปีที่แล้ว +1

      Urja Kohli and I could understand what you said, it just looked like shit.

  • @Trunks47r786
    @Trunks47r786 7 ปีที่แล้ว

    6:17 to 6:37, the energy changed from being inversely proportional to the square of the distance to being inversely proportional.

  • @VSPG_SIVANI
    @VSPG_SIVANI 9 ปีที่แล้ว

    We are bonded the strongest with CC, Hank. Hats off for you and your videos.

  • @frankeinowalters8800
    @frankeinowalters8800 9 ปีที่แล้ว +4

    That Coulombs Law equation is very similar to the equation for the gravitational force between two bodies, hell its basically the same thing..substituting Q for m, E for F and the constant fr the universal gravitational constant..shit...

    • @frankeinowalters8800
      @frankeinowalters8800 9 ปีที่แล้ว +5

      hory fuck I just pressed enter
      this is to me as cake and sweets are to you so hush up woman =3=

    • @WaheedRahman1
      @WaheedRahman1 9 ปีที่แล้ว

      ***** I'm happy to see, at least someone here shares my enthusiasm. hahaha, lol, Chemistry is mind-boggling for a newbie like me. I'm confused and frustrated, but all I can say I'm almost there. this guy - without a doubt - makes great videos, but he literally speaks too fast. I'll have to watch this video several times before I completely understand the purpose of this video.

  • @COSASQUEHACERviernes
    @COSASQUEHACERviernes 5 ปีที่แล้ว

    If you don't get all the info because of the speed, then go back and listen that part again. I can understand everything and english is not my first language. His work is amazing

  • @user-rv6py8cd6p
    @user-rv6py8cd6p 8 ปีที่แล้ว

    that was the best 14 seconds in crash course history

  • @nicowalls5738
    @nicowalls5738 5 ปีที่แล้ว +7

    Who else is watching this before a test?

  • @taylorx7573
    @taylorx7573 5 ปีที่แล้ว

    I’m reaaallly trying to like chemistry, but it’s really difficult and it makes me want to cry.

  • @sakurasraven
    @sakurasraven 9 ปีที่แล้ว +1

    I love these so much! They're a great help when studying for exams!!!

  • @supermassivekathole
    @supermassivekathole 8 ปีที่แล้ว

    Crikey. I'm tryna revise for gcse additional chemistry rn but this video makes it look like a walk in the park

  • @SUFYAN_QU
    @SUFYAN_QU 4 ปีที่แล้ว +3

    Who is watch that at quarantine times🤓

  • @trimangehdu4485
    @trimangehdu4485 4 ปีที่แล้ว +1

    The relationship I had with my textbook certainly got better after that advice. No kidding

  • @bananacanada25
    @bananacanada25 10 ปีที่แล้ว

    THANKS HANK GREEN THESE VIDEOS REALLY HELPED ME A LOT FOR MY AP BIO CLASS!!!

  • @teehee3322
    @teehee3322 7 ปีที่แล้ว +127

    No offense, just some feedback. I got so confused after watching this video because you talked so fast and it sounded kind of like gibberish to me. I feel like there was just so much that you said but didn't provide enough information. That made everything so much more confusing to me. Please don't take this as hate, I totally love and appreciate your hard work. Just some feedback so you can be the greatest you can be.

    • @pipsta
      @pipsta 7 ปีที่แล้ว +16

      yehet exo Play it on 0.5 and keep Rewatching it. I know all the first episode after watching it 10 times.

    • @yanalangellier9244
      @yanalangellier9244 7 ปีที่แล้ว +26

      yehet exo It's not meant to teach you things from scratch, it's more of a refresher, hence the name. That's why it leaves you confused if you didn't already learn the info.

    • @brando3424
      @brando3424 7 ปีที่แล้ว +1

      You do realize that you can slow the rate of the video down. Use the tools that are given to you.

    • @peytontankersley4309
      @peytontankersley4309 7 ปีที่แล้ว +3

      You should use the tools given to you. The op was posted 10 months ago. I doubt they care now.

    • @milesl.2467
      @milesl.2467 6 ปีที่แล้ว +2

      So you could slow it down OR you could turn on this little thing called captions :)

  • @yourfuturexstepdad
    @yourfuturexstepdad 2 ปีที่แล้ว +1

    I love this guy, he and John his older brother are both hilarious and very efficient teachers.

    • @cvwxk
      @cvwxk ปีที่แล้ว

      For real! I love his teaching

  • @Aldo_raines
    @Aldo_raines 11 ปีที่แล้ว

    John gives out relationship advice all the time on Crash Course humanities.

  • @ghazal3340
    @ghazal3340 11 ปีที่แล้ว +6

    you talk way to fast but the info was good.

  • @Stoneman66666
    @Stoneman66666 11 ปีที่แล้ว

    I was wondering if that was the case, but I just finished learning the level that he's teaching at and we still learned them as such. I thought he'd at least touch upon them but say they're more complicated than that.

  • @adityakaul4890
    @adityakaul4890 8 ปีที่แล้ว +5

    *Free Advice -*
    If anyone want to sleep, click on the gear button, speed, and then put x2...........**GOOD NIGHT** ~_~