Potassium + Water

[THEOLDNEWKIDS]

wwwwwwwwwwaaaaaaaaayyyyyyyyy wwwwwwwwwwaaaaaaaaayyyyyyyyy (in slow mo) dafuq is way?

[marcusrosengren]

hydrogen gas has no color so it's impossible that the white gas is hydrogen.

[MrDevil0910]

2K + 2H2O ==> 2KOH + H2

THE THERMIC ENERGY GIVE THE SECOND REACTION

2H2 + O2 ==> 2H2O

[david1513]

is that potassium nitrate KNO3

[Harpmusicianx3]

HAHAHAHAHA

[SuckkerFree215]

This is like porn for nerds.

[Pendulumdude34]

lololol we did this in class, but on a much smaller scale..

grade 9 teachers are such wussies. i wanna see this for real

[ATLFalcons1208]

we did this in our class and my buddys hair caught on fire lolz it was so funny cuz he had to use the shower and shit too rofl!!

[mclein1097]

Does it created Potassium Oxide?

[zzrezz]

LOL the guy in the background going "wah hay! hah hah hay!"

sounds like that bear from banjo kazooie.. when u race him around the giant snowman..

[Jinjo402]

XD, as a BK fan, I approve of zzrezz's comment.

[xxKunfupandaxx]

wow thats stupid my science teacher put a screen up and didnt put as much in. That science teacher must have been stupid. It looks kl tho.

[LordFabs]

My teacher was new and female, and we convinced her to put by volume the equivilent of four sugar cubes of sodium into 0.1 mole HCl. Long story short, the ceiling was repainted, and the front desk was replaced. Epic.

[xxKunfupandaxx]

haha wen we did the potassium and water the potassium flew up and hit the ceiling making a hole in my mates tights. It was funny.

[LordFabs]

LOL Hilarious

These reactive metals sure are fun.

[SAMPMoviesTFS]

i wish my teacher is "stupid" as this

she is so greedy lol, always use small amount of chemicals

[KnotsNerd]

Not a very smart teacher.. doing it inside. It should at least be done under a fume hood, or with SAFETY GOGGLES.

[psychoducklin88]

touche

[thefifthlimb]

on the contrary, it is really awesome.

[LordFabs]

KnotsNerd, it's not as if it's particularly toxic in such a small ammount. However, I do agree with the safety goggles as a minimum level of protection.

[Azner2254]

Wheeeeee

[Procrastinator55]

Hilarious. That teacher is out of their damn mind. Mine only put a small amount in.

[Fiddlesticks411]

we done that in my science class, but our teacher was smart to put a little amount in. For that kind of reacting, that must've been a big piece

[MadnessTakesOver]

What they did here was extreemly dangerous and could be lethal, when the potassium recats with water it formas a gas, hydrogen. THe amount of this gas being produces catches fire. Because they added too much potassium to the water it exploded - they could of been seriously hurt because if anyone had the molten metal fall on them it would of give them severe burns and adding water to cool their skin down would of made it even worse by recting it even more.

Very Foolish.

[Weakdebater]

I 100% agree at the very least she should have had everyone (ESPECIALLY HERSELF) wear some goggles, and not be so damn close to the freaking explosion. That is extremely dangerous to handle potassium in such a foolhardy manner

[Arkteddy]

shuldve done it outside on the pavement or sumthing

[HotRockx]

This ones for my baby mack

[minicheah12]

we did this at skl very entertaining it burnt a hole in the teachers shirt

[KamagongTree]

how much and where can you get some potassium?

[3clGTX]

Ebay

[jbakid]

burn some sticks in a pot, collect the ash - called potash. Take this, and torch it using a propane burner until it turns from grey to white. Take this stuff, and melt it using a bunsen burner. Then take a 9v battery, clip it with alligator clips, and put the leads into the white hot liquid. When no more metal precipitates around the clips, let this cool down WITHOUT WATER. cover with kerosene to keep indefinitely. enjoy!

[Arkteddy]

bananas!

[000o000ooo]

your teacher is crazy i guess she hates yall that much and wants to burn you.... =( well thats what the "kkk" is for lol.. to kill her with her own postassium and take like 20 pounds and rap it around her and throw her in a pool=)

[nyashahove]

are you a rascist or do you just chat crap cause either way i dont like you nor does anyone else

[ElAurian]

where are her protective goggles? one tiny drop of molten potassium in her eyes and she will know what we mean....

[manns101101]

who made her a chemistry teacher?? No protective goggles, no gloves, and she just flung in the whole amount of K and watched it explode out of control - WTF??

[LukeVader77]

lol agree!!!!!!

[messedrocker]

What a blatant disregard for safety!

[unrealboot1]

yeah, that woman is stupid probably just wanna impress, when i was in school my teacher said there was always someone that says "put the whole lot in" but my teacher never does, but this teacher is a bit more stupid

[FlightSimXYZ]

waayyyyyy WAYYYYY!!!!!

wtf, way?

[Trying2ShowReason]

it gets even weirder in the slow mode

[Primosparazza289]

cool

[MrRocca]

we did this on friday and some kid got scared of the sparks and grabbed the fire extinguisher and went crazy with it

[rikoflishas]

why does potassium reacts so explosively with water? somebody tell me please =D

[albleh]

its got to do with the potassium heating the hydrogen gas released during hte reaction.

[wsmith68]

To acheive maximum electronic stability, potassium needs an electron. It seeks it from the oxygen in the water with products hydrogen and potassium hydroxide. This reaction gives off much heat. What you see depends on the size of the chunk. Heat ignites the liberated hydrogen. Larger chunks make enough heat to create a steam explosion from boiling the water around the metal. Even larger vaporizes some of the potassium which is available for more intense reaction with the air (both N2&O2).

[wsmith68]

Sorry, K needs to give up an e- !

[hellomate639]

Because 8 valence electrons make a stable octet, and perfect match ups generally react more violently, when there is only 1 electron to lose to go down to the stable octect, you end up with a faster reaction.

This reaction is very exothermic, meaning it releases heat due to energy being stored in chemical bonds, and reacts very quickly, and potassium is denser than sodium and lithium, it explodes.

[Doumagirl]

Classic demonstration. My one professor did the same thing but in a very old lecture hall and gassed the whole room and hallway. Beautiful. Then he did the same thing with sodium but this time used too much and caught a ceiling tile on fire.

[TheSonicGod]

Lithium, Potassium, Sodium, Cesium, they all react with water, each one more violent than the next.

If you're an idiot, you can try it with Francium, too. ;)

[BanoOnPiano]

if you can get ur hands on one of the rarest elements known to man that is...but i doubt that person wud b an idiot XD

[NitroTheRhino]

By the way SonicGod, Potassium is MUCH more reactive than sodium. Go look it up.

[darkowin93]

Francium wourld be the best, it would ignite all the air around you :D

[ingolifs]

You'd have to book a week at a supercollider to collect enough of the stuff.

[blufiji]

whoever put that potassium in there got some nice titties.

[jamesmads]

hehehe my science teacher done that once with pottasium and a glass bowl of ater like that but he put too much in(pottasium) smoked the place out and cracked the glass contaner full of water LOL

[shield121]

that guy is gay he keeps saying waay

[Tibbenham]

So how does lithium react with water? Less intensely than sodium?

[ntm4]

Yeah, It just sputters and moves around most of the time.

[Vahanb]

thats actually really dangerous. Thy hyrdogen gas can scratch your throat, if bad enough it could even lead to death.

[cyberstrike2027]

but the hydrogen is ignited by the heat of the reaction, hence the flame, and so is consumed, posing no danger to the nice students' throats :)

[3rdrockenterprise]

Ahhh.... richmond college... i love it. at the same time i hate it. but still, let the explosions keep on happening! Although she should've worn some protective clothing like goggles at least!

[Ayries]

Cool, sure, but damn, that's stupid =\ We never use more than a tiny sliver, and especially not without safety screens etc for that amount!!! Still, it is kinda cool to see the bigger reaction.

[SeikoPsycho]

is that a teacher doing that in a classroom? that stupid bitch should be fired.

[maiaalta]

our chem teacher would probably faint...

no goggles! no gown or protective clothing!!

[Grub04]

That was cool but francium or Rubidium would probably work better

[cycimian]

Grub04 i love your sense of humor, But better still lets nitrate some phenol and allow to natural crystalize an unlable the bottle,

[hanza93]

yh ma school done dat test lyk 3 days ago our room was filled wiv gas couldnt even breath properly pretty good explosion

[funkeemunkymaddy]

OMG !

AWESOME !

SCEINCE RULES :)

[acteon00]

Die Lehrerin hats wirklich drauf

[danoush]

I cant believe the instructor isnt wearing safety goggles

[tomtomj1990]

Ditto !

[talcorn1984]

another crazy expirment is when chromium trioxide (in powder form) is combined with ethanol [instant flame!!!]

[nivarion]

you know what would be really cool is if you threw a chunk of berrilum or francium that size in

[6x9equals42]

Francium:  there is an insufficient amount of francium on the planet to get a chunk that size. If there were, it would basically blow up the building. That and it's radioactive with a half-life of about 5 minutes.

Beryllium: Why? It's at the top of its column in the P.T. -- not very reactive.

[0vervoltage]

Way to spell 'potassium'

[haveNOuse4aNAME]

Now I know why my chemistry teacher won't do this in class anymore

[ashleyline3]

I did this in science today along with sodium and lithium. It was pretty cool. It wasn't as intense as this though

[3phwa]

soo.. this is potassium added to plain water?

[ohnapolean]

probally dogy water, lol acid rain or something. no way a ph 7 water cud do that.

[assassin4004]

dude are you stupid or something this reaction is exothermic (gives off heat) and so much that the solid will light theres nothin to do with the ph off the liquid as only water is ph7 whereas it would be an acid or alkaline liquid and not water if a differant ph

[ohnapolean]

im not a idiot i am good at science i was joking, basicly what i was saying is he must have used alot of potassium to get such a large explosion, now please dont reply i dont have time to check my emails and find waste spam like this. all respects.

[Blad0506]

I always steal chemicals from the laboratory, so when the teacher is looking for 'em...... LOL...

[Canusaymyname]

that happened in science today lol. something to fo with ionic bonding i think?

[jeromeyward]

Boom, I like things that go bang! Good teacher!

[atrioventricular]

Everyone likes a nice explosion to celebrate your last chemistry lesson ever!

[jeromeyward]

WE got a demo of Ammonium Triodide when Our teacher quit. He said he had nothing to loose.  That was fun!

[Periodicity]

Is i had anything to do with it, the teacher shoudl be struck off!

[AlterEgox5]

HAHA! Reminds me of my old chemistry teacher! Something could catch on fire and her response would be, "Oh dear, it's on fire."

[segarza]

Yes, the burning gas is excess Hydrogen which burns off pretty fast once a flame erupts, but the reaction with water will also create KOH in solution and in the white vapor cloud seen above. Cool vid.

[segarza]

Looks like she used a little too much Potassium. That vapor cloud is also very dangerous. It's KOH.

[atrioventricular]

I reckon a bit too much potassium was used, but then again it was our last chemistry lesson ever, so we went out with a bang lol. The gas is hydrogen though, mentioned when someone in the video sarcastically says 'we'll just get hydrogen poisoning'.

[Greenhorn82]

The smokey stuff isn't hydrogen, and neither is it water vapor. It's particles of potassium hydroxide and oxides of potassium. I guess you must not have inhaled any, because if you did you'd know it. Even the slightest amount, that you can barely see, will make your throat scratchy and make you cough in a short time.

[atrioventricular]

As much as I dislike chemistry, I know the potassium hydroxide formed is soluble, and the gas is hydrogen, trust.

[lookaduck66]

Actually we did the Sodium and water experiment in my AP Chem. class today and we were having the same discussion. You're both right. Though anything containing a Alkali Metal is soluble (i.e. NaOH, KOH) due to the explosive force produced in this experiment some particulates of KOH are blown away as smoke. The White gas is Hydrogen though I believe... Segarza seems to have the right idea.

[K136246]

@atrioventricular Oh please... aerosolized KOH, Ohhhhh Cough COugh COugh

[8Z8CrAzY8Z8]

Awsome

[Dnn87]

HOLY CRAP! that teacher knows nothing about safety. she could have burned some of you, or herself very bad, maybe causing blindness! But very cool. But insane!