Chemical reactions introduction | Chemistry of life | Biology | Khan Academy

Reactants and products in reversible and irreversible chemical reactions.

Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

[ianfox]

Anyone else notice that he is a great artist?

[Healingson]

Who else is here cause they're about to get finessed by chem tomorrow👀

[ararararagi-kun]

Every time I watch his videos, I wonder “how can he write and draw so well using a mouse?!”

[aniyer]

0:17 "without chemical reactions, we would have no life". 🔥🔥🔥🔥🔥🔥🔥🔥

[natashastarsss]

Your videos are so good and I'm learning new things by the second as I am only in year 7

[shhhadoww]

What a great chemistry teacher! Let’s just hope he doesn’t get lung cancer when he turns 50!




Please tell me y’all understand

[chawkzero]

One correction to make here: those bright orange thrust plumes are coming from the white solid fuel rocket boosters on either side, not the liquid H2/O2 thrusters on the Space Shuttle itself.  Those are dubbed the SSME's (Space Shuttle Main Engine) and burn with a nice blue flame that isn't very long.

[louisececiliafabria]

I love the way you teach ^^, thank you, God bless you.

[angelh]

I feel like Walter White watching this

[musataz]

Sal sounds like friends' ross(david schwimmer)!!!

[AubreyAllen-udnv]

Very good real world application to that in our bodies there are countless chemical reactions taking place.

[yt]

I have a test tomorrow and I didn’t study anything yay good luck me :)

[nyxsicario]

why did he put the two's for? and how does he know to do this?

[trevorx]

point: the big white rocket fire stuff that comes out of the side boosters is actually not power by burning oxygen and hydrogen. those are solid-fuel boosters. The oxygen and hydrogen actually power those tiny little blue flames at the bottom of the main space shuttle

[thomashampson]

sub to pyrocynical. He is
an amazing science too. Hes not as known but he makes amazing and mindblowning science videos

[arson]

please tell me. . .


how do u have so good handwriting?


i hear the mouse clicks and i can barily write with a pen so pls tell me

[stupidwomancrafts]

what is the program you use for drawing that

[GovernmentNon-TerrestrialTechR]

so how iis it still 2H2? shouldnt it be separate?

[Darkplayr]

Probably a year late, but yeah those large plumes of fire you see are not produced by Liquid Hydrogen, or Liquid Oxygen. That is actually produced by the SRB (Solid Rocket Boosters).