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Polar & Non-Polar Molecules: Crash Course Chemistry #23

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*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! ***

Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and categorize them. One of the most important of those classifications is whether a molecule is polar or non-polar, which describes a kind of symmetry - not just of the molecule, but of the charge. In this edition of Crash Course Chemistry, Hank comes out for Team Polar, and describes why these molecules are so interesting to him.
You'll learn that molecules need to have both charge asymmetry and geometric asymmetry to be polar, and that charge asymmetry is caused by a difference in electronegativities. You'll also learn how to notate a dipole moment (or charge separation) of a molecule, the physical mechanism behind like dissolves like, and why water is so dang good at fostering life on Earth.

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Table of Contents
Charge Assymetry & Geometric Asymmetry 01:33
Difference in Electronegatives 01:49
Hank is Team Polar 00:33
Dipole Moment 03:49
Charge Separation of a Molecule 04:12
Like Dissolves Like 04:41
Water is Awesome 05:10

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50 Comments

    Popular Comments:

LifeUnder TheMicroscope . 2018-08-19
Dildo occultists like this are here to push nonsense one recommended video at a time. Nice logo, no symbolism of any fraternal orders there.
121 2 . Reply
Krish Tiwari . 2018-08-17
Tip: change the speed to 2x then 1.5x then back to normal.... you will feel that it is not too fast....lol
121 2 . Reply
Krish Tiwari . 2018-08-17
I could just understand the 1D PART
121 2 . Reply
Anonymous alien . 2018-08-16
121 2 . Reply
ElvenIvy07 . 2018-08-12
Lool that hipster analogy xD
121 2 . Reply
tupu siafausa . 2018-08-08
He talks to fast but good explanation
121 2 . Reply
Shabnam Sajida . 2018-08-07
Thanks :)
121 2 . Reply
Alex Wu . 2018-08-04
9:59 to be POLAR not nonpolar right?
121 2 . Reply
Alex Wu . 2018-08-04
Crash Course, y'all should create section quizzes, tests, and maybe an end of course exam (all practice or nonpractice)
121 2 . Reply
Alex Wu . 2018-08-04
2:09 is pure covalent nonpolar covalent?
121 2 . Reply
Nisal Kobbekaduwa . 2018-08-03
Speed of speaking is more confusing....god help us
121 2 . Reply
Kennedy Ejiofor . 2018-08-03
Please talk a little bit slower
121 2 . Reply
Everything Here . 2018-08-01
Thanks
121 2 . Reply
STARFEW . 2018-07-30
Hello I'm from 2018, the future is great
121 2 . Reply
Christopher T Ross J . 2018-07-28
"...the more protons you have, the more boys in the band." Lmfao genius analogy tho
121 2 . Reply
Zeke Kace . 2018-07-26
The greater the electronegativity difference, the more ionic the bond is. Bonds that are partly ionic are called polar covalent bonds.
Nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.
121 2 . Reply
Yuuki Yukihira . 2018-07-24
TEAM POLAR!!!
121 2 . Reply
Immortal Legends . 2018-07-20
does partial polar bond is formed only with hydrogen and other electronegative element?
121 2 . Reply
Janela Caranglan . 2018-07-13
You talk too fast! It makes it more uneasy to understand.
121 2 . Reply
Ganga Salwathura . 2018-07-12
I just realized why we use soap to wash our selves because it reacts with both polar and non polar molecules........
121 2 . Reply
Jason Barizo . 2018-07-11
Chill out man
121 2 . Reply
Shoba Jayakody . 2018-07-06
Ur talking too fast
121 2 . Reply
SillySimoleon . 2018-07-04
LOL
121 2 . Reply
Paloma Muñoz . 2018-07-03
"what the heck there´s less than 100 mils of liquid" hcbsdhhdsbch
121 2 . Reply
Victoria Clark . 2018-07-03
I’m in summer and literally just came here to stare at one direction. I don’t have a life really.
121 2 . Reply
Cherrie . 2018-07-02
water just likes itself more lmao
121 2 . Reply
CatchSnapCaught . 2018-06-26
So awesome, I needed to sub to ya (you keep popping up when I search)

Your videos helped me solidify when I'm trying to survive A&P class.

Thank you, sir!
121 2 . Reply
Ruth Bosquet . 2018-06-24
way too fast
121 2 . Reply
POON HONG JIN - . 2018-06-18
hi
121 2 . Reply
Katelyn Wooten . 2018-06-14
no one ever talks about niall!! god bless you hank
121 2 . Reply
noah gedult . 2018-06-12
I thought I was the only one hearing him to be so fast in speech
121 2 . Reply
aaliyah ahmadi . 2018-06-11
I love crash course but the plethora of inaccuracies in this video is actually insane!!
121 2 . Reply
protoplasmic inclusion . 2018-06-01
Warning: Zoning out in T-10 seconds.
121 2 . Reply
SuperSamMan2003 . 2018-05-27
It helps so much when the speed is at 0.75!
121 2 . Reply
Sibarian3 . 2018-05-25
Can you just do the exam for me
121 2 . Reply
kash stylinson . 2018-05-24
i love how hank mentions the boys in so many videos, you can try escaping but hank is the electron to the 1d atom that will attract u. SHOOK
121 2 . Reply
Christopher Sithole . 2018-05-18
gotta watch this at least 5 times to understand
121 2 . Reply
Sunset Glare . 2018-05-15
I can't seem to escape 1D nowadays. And it's 2018
121 2 . Reply
Sunset Glare . 2018-05-15
I just needed to finish my chem hw and finally tore myself out of the 1D videos and guess what? Niall is back. Jesus help me. WHyyyyyyyy all I wanTED Was to fiNish my HW.
121 2 . Reply
Varshita Kolipaka . 2018-05-13
NOW I FINALLY UNDERSTOOD THE DAMN CONCEPT.
121 2 . Reply
Varshita Kolipaka . 2018-05-13
Y’all calling this Fast, attend chemistry in our school. You’ll know what FAST is. Our teacher RUNS .
121 2 . Reply
Judy . 2018-05-12
Thank you so much!!!! I'm trying to study this part recently and this really helps > <
121 2 . Reply
Habiba Hany . 2018-05-10
🥇
121 2 . Reply
2 2 . 2018-05-08
WHAT??
121 2 . Reply
chocolate is sweet . 2018-05-07
i didn't understand much of it the first time had to slow it down, so much is taught in one video awesome.
121 2 . Reply
Nadia Estep . 2018-05-04
He speaks...WAY TO FAST! And I hate how he constantly adjusts his glasses! C'mon, dude!
121 2 . Reply
Leigh Hug . 2018-04-26
I think your content is exceptional, but you talk "way too fast." I agree with Mc Kenna, not a site that enables someone to digest the content when you are learning. Thank you.
121 2 . Reply
Tabetha Granelli . 2018-04-23
I promise I'm only a little upset that I can barely identify between Harry and Liam in that animation, and that I've checked the date and Liam should have different hair based on this time period okay thanks for listening bye
121 2 . Reply
jennifer alger . 2018-04-23
Dude slow down!!!!!
121 2 . Reply
Bindu Singh . 2018-04-21
Hey man slow down
121 2 . Reply