Oxidation and reduction | Redox reactions and electrochemistry | Chemistry | Khan Academy

[@carolinewalsh4569]

Like if your cramming for a chem test and this dude just saved you.

[@hassanjuzar4906]

Caroline Walsh haha yea

[@TasX]

My test is tomorrow and we literally learned nothing since we had one day to learn it and our class ran out of time doing test corrections during that day

[@ishacorner]

Caroline Walsh yeah so true

[@anthonykonior9773]

You’re😂

[@freezinganimenz7835]

That's what I'm doing xdxdxd

[@DashyMcDashDash]

I always remembered Redox as OIL RIG. OIL - Oxidation is loss. RIG - Reduction is gain.

[@haydenlewis3626]

I'm gay

[@jonathanowo7584]

It's okay to be gay *sang in a chorus

[@dominoscustomersupport4373]

I use LEO the lion goes GER LEO= Loss of Electrons is Oxidation GER= Gain of Electrons is Reduction

[@junsimons]

Why is everyone commenting this as if he didn't literally say OIL RIG right at the end of the video

[@dalsenov]

@@dominoscustomersupport4373 You have just to remember a strict mathematical rule. LOSS is Less or more negative.The trades are made in chemistry with electrons, particles that are negatively charged. So gaining electrons means becoming MORE negative that is in fact LESS.(-4 is less than -3 mathematically (-4 is a smaller number).

[@AceOfSpades7991]

That awkward moment when a guy on the internet does a better job of teaching you than you're actual teacher does....

[@RobertMertensPhD]

"your" not "you're" teacher

[@scottburlison4604]

You're 4 years late bud...

[@troupemember14]

Lmao your English teacher didn't do a great job either did they XD

[@RobertMertensPhD]

It's never too late to teach. Unless your student is dead. Hopefully, it wasn't your fault.

[@kimpossible1855]

Alan N MI

[@FrozenDubstep]

My Chemistry teacher wrote the fucking book we learn from and STILL doesn't teach as well as you. Thank you Khan Academy

[@amber_okaythen]

Same, is this Xander?

[@FrozenDubstep]

ismyneckonfire Yeah lol

[@iMusikkForeva]

Omg same here 😂

[@nikos4677]

​@@amber_okaythendamn

[@Zeveelyn]

It's a bit sad that a video from 6 years ago helps me more than my current instructor.

[@flashflexy]

I wish teachers taught this way..

[@MrAkshaya77]

Your explanation for determining the oxidized and reduced substances and oxidizing agent and reducing agent using concepts of electronegativity and oxidation state was on point. I also liked the whole color scheme that you used to explain the audience. Using Black background which is easy on the eyes, and different colors to represent different atoms/charges is very convenient and helpful. However, I just have one possible correction to make in the first few seconds of video: NaCl is an ionic compound. If you take a sample of table salt (or NaCl), it will not be composed of molecules but Na+ and Cl- ions bounded in a cubic crystal lattice. Ionic compound is the right term to be used for all type of salts.

[@merandahooker9646]

I doubt you will see this, but I just wanted top thank you for all that you do. I can use your videos for my math and science and they always help me tremendously. So thanks- you are my at home science teacher. :)

[@yavuznuriertas2808]

these guys are really good at teaching in a simple way.. i admired the oxidation-reduction explanations in this video. this is so cool!

[@8siandude72]

OIL RIG Oxidation is Losing, Reduction is gaining :)

[@chamomile3620]

This is more easy than LEO THE LION SAYS GER, lol.

[@zrhsquad728]

Is anyone gonna mention how good this guy is at drawing on pc with a mouse!!

[@zrhsquad728]

Fahd oh lol 😂

[@Gauss247]

Hhaahah awesome analogy about being Bernie Madoff'd

[@criticaltit4638]

Thank you Khan Academy! My textbook didn't explain why the term oxidization was being used even though no oxygen molecules were involved in a reaction. This explaination helped a lot!

[@chewyshoey]

Thank you for finally adding to the chemistry videos. The Gen. Chem. Videos on Khan Academy are severely lacking and aimed for middle school children. Please continue the hard work :). -Proud supporter-

[@shadanabashir2278]

I wish my chemistry teachers could explain like this!! Thank you so much Khan academy

[@AmandaBee]

Ah. It seems no matter what I do I will never understand chemistry and the harder I try the more stressed I get and the more my head hurts :)

[@bluelight2681]

Start with the basics and move up from there. Don't stress yourself with over complicated explanations. Try a book that is an easy start. The periodic table- a feild guide to the elements by Paul Parsons and Gail Dixon is a good book for beginners (it's kinda got a rainbow cover with all the element names on it) It mainly has tge uses and a nice little part at the top with the electronic structure on it and fancy stuff like that :)

[@bluelight2681]

+BlueLight The* Field* Sorry about that

[@unknownforeverrr]

same

[@angeloquimoyog6448]

Thank you! the way it is explained and how it is presented is easy to understand which also kept my concentration intact throughout the video.

[@soumyanag2328]

Cool!! To my chemistry professor now na I don't need you now I have Khan Academy😂😂😂😂

[@keysivalencia8105]

i love this page because it has saved me so many times, but this video just confused me even more.

[@zahramohamad1643]

Awk moment when you try to learn the whole spec of chem the night before your exam #notagoodidea

[@skyplayx3558]

6 years later, I'm doing the same thing

[@selvageetha2687]

Good explanation sir

[@ritvikupadhyay4677]

This guy is a legendI salute you

[@swastikbasu2270]

Mnemonics were really good... I think it will help me a lot in future

[@drbeeezz616]

your a grate teacher, thanks.

[@The0Almighty0Lord]

looks like you need a grammer teacher next lmao

[@drbeeezz616]

ha ha very funny, grramer no good in internet

[@AliRaza-bt6in]

guess u need a grammar* teacher too :P just for fun :P

[@kimpossible1855]

How about watching some english tutorials as well.

[@nemesis1uk]

Fantastic Video Sal! Much appreciated! This will definitely help me prepare for pre-med school exams - GAMSAT

[@vlogmohan4173]

i also wish as teacher taught in this way

[@Ahuja_Samir]

True bro. My teacher sucks so damn bad... And I have a test tomorrow and damn, Sal saved me today :P

[@chinemelumj5349]

wow I have learned so much from you in just few minutes..

[@josaphcj7199]

Thank u.best explanation of oxidation in utube

[@infinitesimotel]

an atom that makes you cry is an onion, and the more shells removed from it the more you cry.

[@chamomile3620]

lol, this is funny

[@miniasfour]

I LUV KHAN ACADEMY!!!!!

[@Zero-zz3rm]

I love you man

[@ipotatosenpai7002]

Haha gay

[@mrsextinct9728]

This is great indeed.

[@ayush.16]

good due to inquist teaching and queer explanation lovely to have a look at this presentation

[@itsReallyLou]

Might be helpful to mention that the activity is typically occuring in a solvent (e.g. water).

[@doriramohamed9117]

Thank you so much 👌👍

[@sandeepshah101]

I love it, it is very good

[@sangitapatil6592]

Nice ,easy to understand

[@samiislam2543]

Thnx Sal u just made Oxidation and Reduction easy for me!! :D :D :)

[@orhantokur7811]

Great explanation !

[@RebeccaAires]

well i would really like more chemistry videos, you are great, and your videos have helped me understand lots of thing, not just about chemistry.. but i'd really like more videos about it :) thanks for helping knowledge be easier for everyone, even for brasilians like me! :D

[@fairy-tale2269]

Thank you 😇😇

[@KowboyUSA]

Excellent video.

[@pankajverma4362]

Very Nice Thanks

[@pranalihabib]

You’ve done an amazing job 👏👏

[@مدرسهپزشکی]

thanks a lot

[@RobertMertensPhD]

Okay, that's the best and clearest explanation I've seen so far, and, finally, makes sense. Of course, electrons are negative, so a reduction is negative, so.... yeah. Cool. Thanks.

[@StbLexBoussole]

Nice !

[@kisho2679]

what's the difference between ionization and oxidation?

[@Rukaphuong]

thanks

[@ipotatosenpai7002]

10:44 stuff like that never helped me, but rather made things more hard and cringy to remember oof, I like to remember things in a visually real way

[@ssugd5789]

Are you guys learning this in high school too or...

[@jamesxu357]

yup

[@seanhe6948]

bernie madoff'd made me lol

[@NextgenBeast93]

How does he know that sodium has one valence electron? I was referred to this video from a page on the khan site

[@user-pp1bv7yr2n]

Atomic number of Sodium:- 11 Electronic configuration:- (2,8,1) Electrons in the last shell:- 1 (Valence Electron)

[@claremiller2312]

Losing Elections Oxidation (LEO) Gaining Electrons Reduction (GER) LEO says GER

[@user-pp1bv7yr2n]

OIL RIG is much better Oxidation is losing Reduction is gaining

[@saralee4011]

which of these substances oxidized or reduced F-1 --> F0

[@manpreetahir5076]

Reduction process

[@4544799]

"Bernie Madoffed" what a great new verb!

[@jackvalor6986]

thank you for explaining it so perfectly

[@nicolepadayachee1894]

Hydrogen is not covalently bonded to fluorine, they contain hydrogen bonds

[@FrozenDubstep]

+nicole padayachee They're covalently bonded inside the actual molecule, but have hydrogen bonds between molecules.

[@keeto9233]

SHOUTOUT KHAN

[@kisho2679]

how much Valence Electrons have groups (families) 8, 9, and 10?

[@serene9532]

I strongly feel Mr Khan should teach our teachers how to teach. I don't mean to be funny, this situation is actually quite pathetic >.

[@RoshanKumar-up7rs]

He sounds like Ross Geller

[@zannatul23]

how do you define Oxidation?

[@Elusive0101]

Loss of electrons.

[@goglamaa2164]

isnt anode postive? PANIC- postive anode negative is cathode

[@dalsenov]

There's another way worth remembering. OPPOSITE ATTRACTS! If there is an electrolysis let's say of solution of NaCl then NaCl molecule is decomposed in water. Cl- (negative ions) head to the anode so they are called because of this ANIONS and Na+ ions migrate to the negative electrode (the cathode) so because of this they are named CATIONS and bear the + (plus) sign.

[@subhadipbardhan9711]

LEO the lion says GER lose electrons oxidation, guess the other one

[@haneenasad]

Gain electrons reduction

[@naweedbabakarkhail5210]

wrong

[@kimpossible1855]

Hey u r indian

[@kimpossible1855]

Meee toooo

[@Correctrix]

"Pneumonic"? :p

[@kimpossible1855]

No . Correcttixphobic

[@scalpingheads]

i love you

[@simeonsond4given75]

I have certainly been "Bernie Madoffed".

[@shadow_of_thoth]

Well, Hydrogen has been Oxidized.

[@cloroxbleachsbae7936]

I still stalk

[@anoiracademy6413]

First

[@jamestorres8915]

The more he repeats words the crazier I get

[@junkstough6622]

I dont understand, this isnt related to food

[@pedromiranda5448]

O I L R I G

[@ZoFlux]

seems legit

[@ISLAMguidanceful]

lmaoo brilliant oxidation analogy XD

[@jsspinnacle778]

Chlorine is group 17. Lol

[@djoanztesla2693]

reduced should be called ionized!! :D

[@ipotatosenpai7002]

Reduced and oxidized both mean ionized

[@mesia2453]

Him explaining redox reaction and me: P1V1=P2V2

[@bilelbk1106]

i have understand nothing can you explain more

[@Stratogenic]

Really? You mess up your Chemistry vocabulary in the first 2 seconds? A molecule must be covalent, otherwise it is simply a compound. But who cares, I'm not really one to correct you.

[@tsvietochek]

Really?. Compound can be either covalent or ionic, didnt you know that?

[@crhuble]

Lol really? You had the nerve to call him out even though you're THAT wrong? How embarrassing..

[@Stratogenic]

My point was that a molecule is solely and entirely covalent, while an ion is only a compound, not a molecule. He incorrectly used the term 'molecule', is what I'm saying.

[@tsvietochek]

Stratogenic LOL. "Definition of Compound. A compound is a substance formed when two or more chemical elements are chemically bonded together. Two types of chemical bonds common in compounds are COVALENT BONDS AND IONIC BONDS. The elements in any compound are always present in fixed ratios"

[@Stratogenic]

Maracaibo He called an ionic compound a molecule. That's what I am saying, and that's what I was trying to correct. There's no need to point out the fact that you don't understand what I was saying any longer, alright?

[@suzy6499]

i dont understand uhhhh

[@MsDJ619]

this guy cant teach

[@eddy4083]

nonsense tutor

[@muhammedakbar7851]

thank u

[@sushrutbhadani3024]

Thankyou