Precipitation Reactions: Crash Course Chemistry #9

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  • Опубліковано 3 чер 2024
  • A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other and form an insoluble compound, they suddenly fall out of the solution in what's called a precipitation reaction. In this episode of Crash Course Chemistry, we learn about precipitation, precipitates, anions, cations, and how to describe and discuss ionic reactions.
    Watch this video in Spanish on our Crash Course en Español channel: • Reacciones de precipit...
    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
    Table of Contents
    Precipitate Reactions 0:34
    Determining Precipitates 1:35
    Writing Precipitate Reactions 6:31
    Calculating Molar Mass Equation 8:52
    Crash Course is on Patreon! You can support us directly by signing up at / crashcourse
    Want to find Crash Course elsewhere on the internet?
    Facebook - / youtubecrashcourse
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    Instagram - / thecrashcourse
    CC Kids: / crashcoursekids

КОМЕНТАРІ • 1 тис.

  • @crashcourse
    @crashcourse  4 роки тому +85

    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

    • @Inbbnbb
      @Inbbnbb 4 роки тому +1

      Ok hank and co

    • @ainbrisk545
      @ainbrisk545 4 роки тому +4

      Woah, recent. Only one week ago on a 7 year old video?!

    • @veraemmanuel8221
      @veraemmanuel8221 4 роки тому +4

      Yes! That's awesome. TYSM

  • @MichaelTebeleMusic
    @MichaelTebeleMusic 9 років тому +2491

    Crash Course is really amazing. I love learning here, but I find that only so much of the content can be absorbed and remembered... It would be even more amazing if there was an attachment with notes for each episode so that it can be reviewed afterward... Just a suggestion... If anyone agrees please thumbs up this comment, and maybe we can get the CrashCourse team to see this!

    • @Richard-kz1ee
      @Richard-kz1ee 9 років тому +29

      MichaelTebeleMusic Good video ! I really do appreciate all the points that were emphasized . Yet, I would also like to support your suggestion concerning the attachment of notes for every episode that we can view after watching the video for learning purposes . Thanks .

    • @cjsparks02
      @cjsparks02 8 років тому +16

      +MichaelTebeleMusic I totally agree with this! There is so much information that it is difficult to retain, and it would take many watch-throughs to make sufficient notes.

    • @Richard-kz1ee
      @Richard-kz1ee 8 років тому +1

      SURE

    • @cic22
      @cic22 8 років тому +4

      +MichaelTebeleMusic agreed! A revision/summary component at the end of the video would be great!

    • @johnmcgoffers
      @johnmcgoffers 8 років тому +8

      +MichaelTebeleMusic I watch it once then watch it again and take my own notes....seems to work for me!

  • @Greenlord075
    @Greenlord075 11 років тому +80

    No matter how confusing chemistry might seem, there's always a silver lining!

  • @misstalentlovesyou
    @misstalentlovesyou 10 років тому +705

    CATions are always PAWsitive

    • @TheSupo123
      @TheSupo123 9 років тому +46

      or pussytive

    • @FraserSouris
      @FraserSouris 9 років тому +45

      Anion= A Negative ION

    • @skates3540
      @skates3540 9 років тому +20

      And y'know, it's cool to be a cat, which is a plus.

    • @thaliavinyaya3025
      @thaliavinyaya3025 9 років тому +11

      or purrsitive

    • @izzyGO52
      @izzyGO52 9 років тому +10

      Skates 35 Yeh, 'cause a cat's the only cat that knows where it's at, that's why everybody wants to be a cat :3

  • @maygun4030
    @maygun4030 9 років тому +342

    I wish Hank was my chemistry teacher

  • @TeamIcarus1
    @TeamIcarus1 9 років тому +59

    all chemistry teachers should be like him

  • @Spectre92ITA
    @Spectre92ITA 11 місяців тому +4

    Just want to say, that Metal Gear Solid reference you snuck in there was *chef's kiss*

  • @rebekahnunes8480
    @rebekahnunes8480 6 років тому +163

    My brain may be made by chemistry but it sure wasn't made for it '~'

  • @jfking01
    @jfking01 11 років тому +30

    Hank, I know you addressed the difference in an earlier episode, but you might want to tell the animators to use "mol" in stoichiometirc equations instead of "M," as that is the symbol commonly used for molarity. It's all semantics, but if you have viewers who are taking chemistry in school it could cost them on a test or assignment

  • @araeside6979
    @araeside6979 8 років тому +113

    "Because science." is literally the answer to probably every question. "Why are you late for school?" "Because science" Why are you limping?" "Because science"

    • @blu_dot_exe7476
      @blu_dot_exe7476 8 років тому +31

      "why did the fire nation attack??"
      "Because science..."

    • @ndulin1234
      @ndulin1234 8 років тому +5

      +awesomeaoife :3 also, "Because Words" is another good one.

    • @araeside6979
      @araeside6979 8 років тому +3

      xxXTITAN HAWKXxx Might use that one

    • @blu_dot_exe7476
      @blu_dot_exe7476 8 років тому +2

      +abdur rahman oH GOD THAT WOULD BE AMAZING

    • @adrianagarzon496
      @adrianagarzon496 5 років тому

      BluFuri ants Canada

  • @ninboy01
    @ninboy01 9 років тому +135

    Only 1:40 in, and we are given a Metal Gear reference. That is why I love Crash Course.

    • @coolpumas1000000
      @coolpumas1000000 9 років тому +2

      Ohhhhhhhhhhhhh yes.

    • @andreistephen4965
      @andreistephen4965 9 років тому +5

      dude i noticed that too and i love you profile picture

    • @AugustusCaesar9464
      @AugustusCaesar9464 8 років тому +9

      ***** It was SOLID snake, important. For whoever didnt get the pun, Hank is taking about solids falling out of soulutions.

    • @CrazycruxGaming
      @CrazycruxGaming 8 років тому

      +king fireslayer HAHAHAHA! THANK YOU!

    • @Yahriel
      @Yahriel 8 років тому +1

      +NINmann01wiiU I paused and rewatched that part several times.
      I LOVE finding MGS in random places. XD
      Thanks for snapping me out of the "I've been studying this for too long tonight" stupor, Crash Course!

  • @davids4250
    @davids4250 11 років тому +8

    Hank, I have not studied chemistry since high school in the 60s, and I almost failed that. You are making things much easier to understand. Thank you.

  • @writbanalim2715
    @writbanalim2715 7 років тому +57

    "Now you want that silver even more don't you?"
    10/10

  • @TheRatSquid
    @TheRatSquid 11 років тому +6

    I was great at math and English, but I struggled a lot with history and science because my GED textbook didn't contain a lot of information, so I decided to watch your videos to help me out, then the time came to take my GED. I always regretted dropping out of highschool, but what's done is done. I went into the GED test and realized a lot of what was on the exam was what you guys taught me. Thanks to you guys, I passed my GED. Thank you CC for giving me a shot at a future.

  • @carolineo21
    @carolineo21 7 років тому +61

    why didn't I find this channel earlier I have no idea what's happening in ap chem lol

    • @mymyxtran
      @mymyxtran 7 років тому +1

      Caroline O. What grade are you in?

    • @carolineo21
      @carolineo21 7 років тому +3

      i'm a freshman lol yikes

    • @watzittooya7644
      @watzittooya7644 6 років тому +7

      Nobody in highschool does, welcome to hell.

  • @theBlaBlaBlaster
    @theBlaBlaBlaster 9 років тому +31

    Error at 6:49. NOT a REDOX REACTION. You need to change the heading to DOUBLE REPLACEMENT REACTION (or PRECIPITATION REACTION will work also since double replacement has not been mentioned at all in the video).

  • @pro-methean4121
    @pro-methean4121 8 років тому +1019

    Donald Trump reference 2 years before he started running for president, nice

    • @sassytela
      @sassytela 8 років тому +10

      exactly what I was gonna comment

    • @puppetactor2515
      @puppetactor2515 8 років тому +6

      +sassytela haven't I see you in almost every one of these?

    • @sassytela
      @sassytela 8 років тому +12

      +EnsonTheVile lol yh I love crash couse vids. It helps me with my college work :)

    • @puppetactor2515
      @puppetactor2515 8 років тому +7

      +sassytela I always saw your comments when Donald trump is in the vids

    • @sassytela
      @sassytela 8 років тому +13

      +EnsonTheVile I hate the guy even tho he ain't running for president in my countru

  • @pabloramos1022
    @pabloramos1022 8 років тому +42

    "Chemists have to dictate what they say to they moms due to their terrible writting skills." Did anybody noticed the Bohr reference?

    • @peerlessanaconda2337
      @peerlessanaconda2337 8 років тому +4

      He specifically mentioned is when he introduced Bohr a few episodes ago.

  • @sanguineel
    @sanguineel 11 років тому +13

    Please keep these coming and expand into advanced concepts! I love chemistry more than anything.

  • @tnttiger3079
    @tnttiger3079 7 років тому +378

    Crash course: making Donald Trump jokes before it was cool.

  • @queergeologist8207
    @queergeologist8207 10 років тому +147

    This man threw some sodium chloride at me the other day it was a salt.

    • @forhandle111
      @forhandle111 6 років тому +19

      Andromeda Florine came over to hydrogen and said "Hey, I'm going to steal your electron. Why? Because I'm feeling a little negative today..."

    • @meghnaeducation5476
      @meghnaeducation5476 5 років тому +1

      @L Vamanara hydrogen peroxide :)

    • @senorslap4613
      @senorslap4613 4 роки тому

      @L Vamanara I might be 4 years late, but epic joke

  • @rvnurse2b
    @rvnurse2b 9 років тому +12

    OMG I LOVE the little periodic table guys! they're so cute! Squee! ( and thanks for the help with my chemistry class)

  • @vaarsuviusprime
    @vaarsuviusprime 11 років тому +3

    I'm a Physics major working on a biophysics PhD and I find these videos a nice review of my high school chem that helps my be better comprehend the chemistry-based portions of research. Thanks!

  • @hawks1ish
    @hawks1ish 9 років тому +64

    Precipitation reactions are the reason why there's a permanent vomit stain on my toilet from when I didn't flush it until the next day because I passed out.

  • @drblueddad
    @drblueddad 4 роки тому +6

    I'm real glad your channel is here. I'm way behind in science class, and your channel helps me understand everything better

  • @richellemcconville4332
    @richellemcconville4332 6 років тому +20

    the part where he talks about the mountains made of silver in the beginning was a reference to how Argentina was named, Lol.

  • @vxious1
    @vxious1 7 років тому +1

    The first time I came across Crash Course was six month ago when I was doing research about the first world war, since then I have been hooked to Vlogbrothers, SciShow and ofcourse Crash Course. So thank you Hank, John and Michael for making me smarter and happier person with your knowledge and witty humour.

  • @notwatermelon2522
    @notwatermelon2522 4 роки тому +1

    Is anyone else absolutely living for the adorable little element drawings that are put up when he talks about each element? Just me? Okay.

  • @colinprevatt9439
    @colinprevatt9439 11 років тому +3

    Am I the only one who gets super excited when I see a new CrashCourse chemistry video? I love these videos, Hank!

  • @palindromekid101
    @palindromekid101 11 років тому +7

    I'm in college Chemistry now and these are awesome for reinforcing everything I'm learning, even teaching stuff I didn't cover in class! Thanks so much Crash Course!

  • @CarpeMetus
    @CarpeMetus 11 років тому +1

    I was so happy to see the conversion equations. I could do those all day every day they are so much fun. Same with balancing reactions.

  • @ryannisthebomb
    @ryannisthebomb 10 років тому

    This has helped me so much in every class!!!! Thank you. I really enjoy chemistry and I never thought I would.

  • @dsagent
    @dsagent 8 років тому +98

    I came here for Chem 101.
    Then upvoted for Snake.

  • @harripersadramrattan8624
    @harripersadramrattan8624 8 років тому +15

    Crash course is awesome can u guys do a course on physics

  • @forgetmenot783
    @forgetmenot783 11 років тому +2

    You have no idea how useful this is for GCSE Chemistry! Thank you :)

  • @MrSidhu3
    @MrSidhu3 11 років тому

    i really appreciate this series, the guys at scishow have no idea how
    helfull these videos are for chem class!!!

  • @Scerttle
    @Scerttle 9 років тому +27

    "Montana, where I live..." may the stalking commence!

    • @cassidynoble77
      @cassidynoble77 8 років тому +4

      +EssThree Most likely Bozeman, MT. Start there then try Butte if still no luck Billings.

  • @PikaPetey
    @PikaPetey 7 років тому +265

    1:04 OMG I CANNOT ESCAPE TRUMP!

    • @ben9820
      @ben9820 6 років тому +19

      You cannot escape meme magic, good sir

    • @ABC-rb5uf
      @ABC-rb5uf 6 років тому +4

      Maybe harden up abit.

    • @ijusterik5384
      @ijusterik5384 5 років тому +15

      @@ABC-rb5uf that's what she said?

  • @Haley0Grace0Love
    @Haley0Grace0Love 11 років тому

    I love when this has to do with things I'm doing in class. I don't pay attention to my teachers but I could listen to the Green Brothers for hours on end

  • @thatmalu
    @thatmalu 11 років тому +1

    I love that these videos let me learn chemistry while I procrastinate doing chemistry lab reports.

  • @mariachristina97
    @mariachristina97 11 років тому +3

    If only this series could be complete before my Chemistry regents :( Great videos. Way more interesting than my actual Chem class.

  • @TheJayBarcelona
    @TheJayBarcelona 10 років тому +44

    cations: displays cat. anion : displays anne hathaway catwoman.hmmm

    • @TheJayBarcelona
      @TheJayBarcelona 10 років тому

      lol, yes !!! i messed up.

    • @AIdanWiederhold
      @AIdanWiederhold 10 років тому +1

      Anovia WikiAnswers Yes, but a cat was displayed.

    • @Cara.314
      @Cara.314 10 років тому +3

      Anovia WikiAnswers Pikachu is a "pika"(google it, it's actually more closely related to a rabit than a mouse), gg

    • @Shadow91507
      @Shadow91507 10 років тому +3

      Pikachu is more closely related to a rabbit as a Mouse Pokémon. gg

    • @SuperNumber420
      @SuperNumber420 10 років тому +2

      ***** My childhood was based on pokemon, and you just blew my mind.

  • @trinawiggins162
    @trinawiggins162 8 років тому

    Thank you guys so much!! i have a massive science test coming up and this saved my butt! thank you so much!

  • @dianagibbs3550
    @dianagibbs3550 4 роки тому

    I'm really enjoying Chemistry. It's great to review chemistry, a) to refresh my neural pathways, and b) to make sure I catch all the new stuff that got discovered since I last took inorganic chemistry...in 199...5? I think?

  • @foxybingo1112
    @foxybingo1112 7 років тому +4

    Thank you so much. You are about the only revision channel with any kind of personality.

  • @BIGREDDOG09
    @BIGREDDOG09 8 років тому +6

    this would be a great refresher for an exam...but for someone trying to learn from scratch, it's slightly fast...

    • @lelem1052
      @lelem1052 5 років тому

      That's because it's a crash course

  • @jamesturner5406
    @jamesturner5406 8 років тому +2

    Watched this today in class and subscribed!

  • @cathlenejenkins8122
    @cathlenejenkins8122 8 років тому

    I AM SO GRATEFUL FOR THIS VIDEO BC MY CHEM TEACHER KNOWS NOTHING AND I HAVE LEARNED NOTHING BU THIS VIDEO HAS TAUGHT ME SO MUCH, THANKS FOR EXISTING HANK

  • @davidcerny1501
    @davidcerny1501 7 років тому +13

    Did you know that Francium was almost named Catium because it is the most powerful Cation, but Marguerite's colleague suggested that she name it something else because it sounded like "Cat", so she named it Francium

    • @robertandersson1128
      @robertandersson1128 7 років тому +2

      Cation
      Caution
      Spelled similarly, sounds differently (sorry for bothering you, it just came to my mind).

    • @davidcerny1501
      @davidcerny1501 7 років тому

      Lol

    • @starrysky1588
      @starrysky1588 6 років тому

      Ohhh didn’t know that earlier before

    • @HilbertXVI
      @HilbertXVI 6 років тому

      ender cow :/

  • @manars7499
    @manars7499 10 років тому +48

    Why the hell are all elements so dang CUTE!!?? (^.^)

    • @manars7499
      @manars7499 10 років тому +1

      watch the vedio...u'll know...oh, and i didn't really mean to share it on google+...

  • @AlexIsAwesomez
    @AlexIsAwesomez 11 років тому +1

    thank you hank green for helping me pass my GCSE Chemistry, it makes more sense than my teacher.

  • @Lilylol
    @Lilylol 11 років тому

    The cation pikachu comparison is the best thing!!! I could never which ones were positive and which ones were negative!

  • @demi-femme4821
    @demi-femme4821 5 років тому +4

    1:41 "This is Snake, I've reached the entry point."

  • @joshuadippie211
    @joshuadippie211 7 років тому +7

    On a (possibly already mentioned) separate note, at time 6:50, a reaction is put up with states for each of the salts. This equation is titled a "REDOX REACTION" which is incorrect. It is a precipitation reaction. Or more precisely a "double displacement" precipitation reaction.

  • @GamerCainey
    @GamerCainey 11 років тому +1

    thankyou very much for this, you are only a little slower than my introductory chem course at uni but im sure by the exams you will have helped a lot!

  • @yorujin_1121
    @yorujin_1121 5 років тому

    An informative chemistry video made me chuckle now that is something!

  • @robair9911
    @robair9911 10 років тому +4

    Mr. Burns extracted gold from the ocean in Little Lisa Recylcing Plant

  • @ddimpl
    @ddimpl 8 років тому +25

    Precipitit

  • @Tazxtehz
    @Tazxtehz Рік тому

    This guy is the only entertainment I need everyday

  • @ubberJakerz
    @ubberJakerz 8 років тому

    So well taught. I love it!

  • @EddyScbr
    @EddyScbr 11 років тому +3

    "Solids falling out of solutions" *Solid Snake falling*
    That was GENIUS!

  • @lilyparker6611
    @lilyparker6611 4 роки тому +5

    I hate when my friend turns into a werewolf

  • @annaedwards1363
    @annaedwards1363 6 років тому

    honestly these videos help me so much

  • @hishamal-balushi1266
    @hishamal-balushi1266 4 роки тому

    loved your energy and the way of presenting ^^

  • @vintagescorpio49
    @vintagescorpio49 7 років тому +4

    At 6:49, did you mean precipitate reaction or redox reaction?

  • @cobitoor721
    @cobitoor721 8 років тому +88

    my father gave me a small loan of a million dollars

  • @joedi
    @joedi 11 років тому

    seriously, is it possible to like a whole channel, because I SURE do. Good stuff bro. As always rocking!

  • @igniii3348
    @igniii3348 10 років тому +1

    this is actually pretty helpful thx alot

  • @sedrickalcantara9588
    @sedrickalcantara9588 8 років тому +210

    1:05 Is that donald trump?

    • @storycat6822
      @storycat6822 8 років тому +7

      +Sedrick Alcantara he even says "to get rich

    • @adammehdi9205
      @adammehdi9205 8 років тому +7

      +Sedrick Alcantara The hair(:

    • @rynsawyer4185
      @rynsawyer4185 8 років тому +1

      +Sedrick Alcantara I think so

    • @queensaharaice7376
      @queensaharaice7376 8 років тому +2

      Lol yes it is! 😐😐😨😐😆😅😄

    • @Paprikaa81
      @Paprikaa81 7 років тому

      Sedrick Alcantara Why not he loves to roast Donnie

  • @jackdouglas5670
    @jackdouglas5670 8 років тому +6

    Really like these videos. Haven't found many videos on physics though. Just saying it would be better if there was a physics section on crash course. Really good otherwise though.

    • @evanknowles4780
      @evanknowles4780 8 років тому

      +Jack Douglas Later this month your dilemma will be solved!

  • @TARDISgirl97
    @TARDISgirl97 11 років тому

    I just, I love you so much, i have a test on this next week. Thank you CrashCourse!!!!!!

  • @christophertrudeau2338
    @christophertrudeau2338 7 років тому

    figured out what i needed in the first minute, thanks

  • @ns6926
    @ns6926 8 років тому +8

    At 10:09, it should be m NaCl not m Cl.

  • @adamvbass93
    @adamvbass93 11 років тому +3

    Reminds me of standard grade chemistry. Being 15 was so simple...

  • @MrCamjiku
    @MrCamjiku 11 років тому

    Thank you, I'm a chemistry graduent and it gave me a good resume of general chemestry :) !

  • @jcloman07
    @jcloman07 8 років тому

    Sir, you may have just saved my Spring Semester. 🤘🏽🤘🏽🤘🏽

  • @SilentGameplayz
    @SilentGameplayz 9 років тому +4

    METAL GEAR SOLID 1:40 I LOVE YOU :D

  • @needsmoreboosters4264
    @needsmoreboosters4264 5 років тому +53

    "What is this white stuff down here?"
    Thaaaaaaaat's what she said.

  • @melissa_channel236
    @melissa_channel236 10 років тому

    Thank you Crash Course!
    This video has helped me a lot!

  • @laurajb28
    @laurajb28 11 років тому +1

    These videos are great for studying for exams! And considering how truly terrible I am at anything remotely science related, they are extremely helpful. Oh and I like your jacket. :)

  • @leo-hao
    @leo-hao 4 роки тому +5

    █▀▀ ▄▀█ ▀█▀   █ █▀█ █▄░█ █▀
    █▄▄ █▀█ ░█░   █ █▄█ █░▀█ ▄█

  • @A.R.T.C.R.E.W
    @A.R.T.C.R.E.W 9 років тому +5

    Am I wrong, or is 6:49 improperly labeled as a redox reaction? I don't think it classifies as a redox reaction because there is no change in oxidation numbers and no electrons are transferred. Or am I just confused?

    • @UnforsakenXII
      @UnforsakenXII 9 років тому

      Noticed that too, might be wrong.

    • @Seraliena
      @Seraliena 9 років тому

      You're absolutely correct - it's not a redox reaction. To be nit-picky, one of the 'O's in the nitrate compound was not capitaliazed :/
      Regardless, I still love Crash Course.

  • @delrayrhodes4491
    @delrayrhodes4491 9 років тому

    These classes are the best!!

  • @younessbagachoul5896
    @younessbagachoul5896 8 років тому +1

    Wow!! Amazing explanation.

  • @avibenshtein8718
    @avibenshtein8718 8 років тому +15

    !!!!your the best! but please talk slower!!!!!!!!!!!

    • @AbigailGibbons
      @AbigailGibbons 6 років тому

      or slow down the video

    • @tahasilat7394
      @tahasilat7394 6 років тому

      You can adjust the speed by pressing the gear button. I personally think that 0.75 is ideal

    • @nickcameron4107
      @nickcameron4107 6 років тому

      I feel that this is him talking slower than normal

  • @CrazycruxGaming
    @CrazycruxGaming 8 років тому +9

    who does this guy's art style?! IT'S SO FREAKIN SLEEK AND SEXY!

    • @Thrillsz
      @Thrillsz 8 років тому +5

      +Crazycrux Gaming
      Graphics Team used in crash course is, Thought Cafe, look them up on youtube.

  • @MrBardache
    @MrBardache 11 років тому +1

    I'm sure someone has asked before but I do it anyhow. I love the way you guys present material in a way that anyone can understand and absorb the material which makes me wonder. Did you or your brother ever think of becoming a school teacher? If so or not why?

  • @Yeosh
    @Yeosh 5 років тому

    Thank yyo so much for adding closed caption

  • @JunSian1001
    @JunSian1001 7 років тому +3

    6:55 This particular precipitation reaction is NOT a redox reaction!!
    There are NO changes in oxidation states for Ag, Cl, Na, NO3 !!

  • @sw309
    @sw309 6 років тому +3

    They recycled that silver mountain illustration from a crash course history on the spanish empire

  • @charliekennedy7139
    @charliekennedy7139 6 років тому

    Thanks mate, this was really helpful.

  • @CrochetWithLuv
    @CrochetWithLuv 9 років тому +1

    Eh,I miss chemistry,haven't studied it for the past 2 years. This course helps me refresh my memory!!

  • @deliciousbutter6077
    @deliciousbutter6077 10 років тому +44

    Wait did you really say, "What is this white stuff"?

    • @RyanSyn
      @RyanSyn 9 років тому +11

      Must be milk. *"Milk"*

  • @tmcowley
    @tmcowley 9 років тому +7

    yeah!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    things i

  • @Bodyknock
    @Bodyknock 11 років тому

    I agree, he's speaking quite clearly. Yes the video is a little fast paced but then again it is a UA-cam video so it's pretty easy to pause and rewind if you don't understand something he just said. All in all I find these videos pretty darn interesting. :)

  • @robertandersson1128
    @robertandersson1128 7 років тому +2

    Thank you for making this video, Kim Krieger, John Green, Heiko Lagner and all the others at _Crash Course_ Chemistry! I actually think this information is going to help me on my next chemistry exam, in 2 weeks. Unfortunatly, we have not been taught atomic masses, moles or molar masses yet so I am afraid that I will not be given any values to count with. Anyway, thank you!
    Also, why didn’t you write your script yourself this time, John? Why did Kim Krieger have to write it for you?

  • @Chowmein222
    @Chowmein222 10 років тому +4

    some nintendo references in this video

  • @kevinhsieh5527
    @kevinhsieh5527 6 років тому +7

    4:30 THAT'S WHAT SHE SAID XDDDDD

  • @acidbubbles419
    @acidbubbles419 11 років тому

    These videos are so helpful!

  • @only20frickinletters
    @only20frickinletters 11 років тому

    I'm loving the blobified elements.