States of matter | States of matter and intermolecular forces | Chemistry | Khan Academy

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Introduction to the states or phases of matter.
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Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.
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Опубликовано:

29 авг 2009

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Комментарии : 217

@dt384795 3 года назад

I was 8 when he made this, and now I'm 19 watching this in hopes of passing my chem exam tmrw

@houdiniaesco3272 3 года назад

How was it

@dt384795 3 года назад

@@houdiniaesco3272 passed it 🤓

@ownitervi241 Год назад

I was 4 when he made it, im 17 now😭

@axyan_1077 Год назад

I wasn't even born

@enzokice Год назад

I was literally wasn't born yet when he posted this

@chadsta05 7 лет назад

I wish this guy was my chem teacher...

@vwlz8637 7 лет назад

Everyone does

@whohead9144 7 лет назад

me to

@leslienash1029 6 лет назад

chadsta05 my too

@payelchakraborty8404 6 лет назад

chadsta05 I wish the same too

@suntop420 4 года назад

Same

@malaikaswm 13 лет назад

"Enthalpy is a word that was introduced to confuse chemistry student", I totally agree Sal :D Why can't people just use simple words we are all know instead of making things seem so complicated?

@AmanTV_TechStar 4 года назад

True

@aidenwolf3558 3 года назад

it has to do with the gatekeeping of science lmao

@angelaugustine8463 3 года назад

🤣 So true

@AayushChitnis 3 года назад

Who else is watching this in quarantine cause their science teacher just quits

@asiaadgaf.. 3 года назад

@emilyrichmond4748 3 года назад

honestly my science teacher hasn't quite. though he is quite funny though and everyone likes him. i mean what other person teaches 9t grade science and not make it fun. My answer: NO ONE!

@AayushChitnis 3 года назад

How am I getting 30 likes on some educational video?

@nyrvannigelsiew4602 3 года назад

Yeah me

@pooj_ashok 10 лет назад

I watch all your biology videos for my exams and stuff. I don't know why, but i never thought of checking out your chemistry playlist. I just did my chem exam yesterday and today i look at this playlist. Every single thing that i needed was here. My exam would've been sooooo much easier if I'd just bothered to look at this. So pissed with myself! :( You're awesome Sal! Lemme just go have a look at physics...

@leahcan8760 11 лет назад

im loving chem because of this...

@moulimohan2065 3 года назад

It's a request to Khan Academy to make videos for IITJEE exams . It's much needed !!

@TyReWi 14 лет назад

i don't know what you do, or how you say it, but it just makes sense :) everytime. Thankyou!

@hug01239 9 лет назад

"...a bunch of falling Sals moving a turbine..." =_= Sal you genius, new renewable energy XD

@cboisandlin9601 3 года назад

this video is old. I was 5 when it was made

@abbienovoaruiz6986 Год назад

Amazing deep thought into the matter states, Thnaks!

@JamesVestal-dz5qm Год назад

I enjoyed teaching enthalpy of reaction and enthalpy of fusion because most students made the connection between energy and observation.

@kora_rblx 3 года назад

I feeeeel like he is the only person on Earth that knows “EVERYTHINGG”!!!!

@iwh7523 2 года назад

And Neil DeGrass Tyson

@astralchan 7 лет назад

1:47 Both pairs of electrons are actually on top... that's why the hydrogen are angled like that, they're not top and bottom. The only way that would happen is if you were looking at it in a weird way (since it is in 3D space), but the most common way to represent the dot structure is to put both pairs on top.

@sriyagayatri2162 6 лет назад

Amazing explanation

@dandudes98 12 лет назад

Good grammar. Didn't misspell a at all. Good job.

@pseudonym8762 3 года назад

Welcome to episode 254 of 'where quarantine has led me to'

@173.supharatkingminghae3 5 лет назад

Thank you so much After tomorrow I must test 🤗

@sony-.-7642 Год назад

How did it go?

@skylee6767 3 года назад

Great video!

@naveenjoshi4979 7 лет назад

nice explained

@usnscc830 12 лет назад

this man is a genius. thank you so much, youre the reason why im actually doing well in my honors chem class.

@isaacherskovitz3276 2 года назад

are you a chemist now

@benedict3965 6 лет назад

Wow nice, this video is worth 4 states of matter videos =)

@bobbypederson 5 лет назад

There's more than 4 states of matter

@tmpsadface8246 5 лет назад

This is soo old😂

@ziaurrahman9022 3 года назад

How we gonna learn from this

@cboisandlin9601 3 года назад

was RU-vid even around then? was this like the first RU-vid video lol

@rajveersingh8253 3 года назад

old is gold bro

@Eshti153 3 года назад

@@cboisandlin9601 the first youtube video was made in 2005

@mandaragodagama495 3 года назад

@@cboisandlin9601 RU-vid was created in 2005.

@JamesVestal-dz5qm Год назад

Draw connection between temperature and kinetic energy of the molecules more clearly.

@97shantanu 13 лет назад

#1 Between HF and HCl, which would be a stronger acid and why? #2 Wouldn't the Bose-Einstein condensate be classified as a 5th state of matter?

@hussam023 11 лет назад

All of ur videos r great. They help me in understanding chemistry so easily and deeply.:-D

@zeeshanahmed1536 7 лет назад

Great

@subscriber101able 12 лет назад

thank u 4 the download!!!!! now i can pass my science subject

@andrewlau7521 3 года назад

How did your science class go

@latewire 14 лет назад

in the first 10 seconds he specifically says "at very high temperatures you get a 4th"

@chukhu4669 3 года назад

Hey I'm from the future

@Kaze956 3 года назад

@@chukhu4669 lol

@princysingh1624 3 года назад

Thank you sir

@crqzy8 3 года назад

احب دروسه

@mani245rocks 14 лет назад

absolutely fantastic !!!!! Can you please upload videos on pi bonds ??

@samehum 13 лет назад

You can find it in the chemistry playlist, on his website

@MarylandDevin 11 лет назад

Same

@joaquinquinamague4058 2 года назад

Thank you so much you're my hero

@lilbombdope3809 5 лет назад

what is in between the liquid water particels?

@frr 14 лет назад

Yayyyyyyyyyy. I Love you!!!!!!!!!

@phuongcao291 4 года назад

Ur my science teacher Mr.Conrad.

@shivamPandey-ko5lc 4 года назад

Hey message me on instagram shivasingh315212018

@foodiholic6043 6 лет назад

Nice****

@NeedsEvidence 9 лет назад

Differently from what Sal says in 1:10, steam is actually *not* a gas in physics and chemistry, though people equate both in common language. *Steam is a mixture of tiny liquid water droplets with air.*

@niazzzz2139 9 лет назад

Steam is an invisible gas that's generated by heating water to a temperature that brings it to the boiling point. When this happens, water changes its physical state and vaporizes, turning from a liquid into a gas.

@gachamemes9104 3 года назад

Sal: A bunch of falling Sal’s moving a turbine Me at 1 AM: OMG HAHAHAHAHHAHA 😂 😆 My mom: SHUT UP LET ME SLEEP 😴

@emilyrichmond4748 3 года назад

LOL

@curtpiazza1688 9 месяцев назад

I finally understand this! Thank you! 😂

@ANGRYBEAST592 11 лет назад

really

@SaleemAnsari-fz5ro 5 лет назад

Thnx

@rameshbhagat8924 5 лет назад

oh nice video

@IBMua 13 лет назад

You should have made dH/q in different angles. But thanks anyway. ;)

@dandudes98 12 лет назад

"So you could have aa bunch of Falling Sals power a turbine." IT'S RAINING MEN!

@polymerofnucleotides 9 лет назад

What state is a cellular membrane or a polymer of nucleotides?

@CallofDutyNOOB1 11 лет назад

What is the difference vapor and steam? Since english is not my mother tongue and my dictionary says it's the same I was wondering what the exact difference is.

@KateKongummibears 3 года назад

I'm 7 years late lol but for anyone else, I think vapor is used for the gaseous states of substances that do not exist as gases at standard temperature and pressure.

@aimanaman3198 11 лет назад

This is amazinh

@Lawrencesantacruz 14 лет назад

Awesome, thanks, a very good reminder for me and it will come in very handy for my teaching assignment :-)

@safwan754 3 года назад

Aired g

@Bdrokinbridger Год назад

Well, I’m 8th grade, and I tell about solid, liquid, and gas are nurtured onto the surface.

@diidierdrogba 11 лет назад

The 4th state of matter is plasma. You can make it in a Microwave

@sony-.-7642 Год назад

You sure?

@JamesVestal-dz5qm Год назад

Keep p chem and o chem separate! If I start lecturing on energy and reaction in the same day they have to focus better to understand. Two variables instead of 1 for them to solve.

@sciencenerd7639 2 года назад

an oldie but a goodie!

@Sparklemagic 3 года назад

have my exam tomorrow, thanks sal!

@sony-.-7642 Год назад

How did it go?

@Sparklemagic Год назад

@@sony-.-7642 really well!

@shivkumargsajjan7681 4 года назад

supe sir

@tcmzueck 14 лет назад

Could you add subtitles so I can just watch these videos in class? Thank you.

@smallbeanmusic2187 4 года назад

They have subtitles in 14 languages Also your not in school anymore are

@Kaze956 3 года назад

@@smallbeanmusic2187 looooooool

@gachamemes9104 3 года назад

Oof get wrecked

@anonymousperson1135 2 года назад

lol , the comment is 11 years old , XD

@mathschu 11 лет назад

Hey, I have a question. You said that at its boiling point (373K), water starts to turn into a gas, but that made me wonder, why is it that a pretty low temperature, water still evaporates (as well as ice actually, that's called sublimation, right?)? To me it doesn't quite fit into the theory addressed in this video. Thanks

@kiran7395 6 лет назад

Sir, Water actually attains an equilibrium state at 373K (100°C). In this state, the rate of melting of ice and evaporation of water are occurring at same rate. It is in dynamic equilibrium and this temperature is known as boiling point of water

@cececece5632 8 лет назад

why does khan never reply to his viewers comments if ur seeing this khan ur videos are helpful and amazing

@simonkhazaka782 8 лет назад

+Samaher Kaisi lol he has nearly 2.5 million subscribers what do you think how many people are writing comment everyday under all his videos ? brainless..

@cececece5632 8 лет назад

+Simon Khazaka it's about time a jackass showed up...... I was kidding calm down kid

@Orion_Fritz 8 лет назад

+Samaher Kaisi this was from 6 years ago, and he has 2.5 million subscribers take a guess as to why eh doesn't respond

@cececece5632 8 лет назад

i said i was just kidding in the comment up, look and think before you talk

@SW-ik8rx 8 лет назад

+Samaher Kaisi y u so mad

@skillzhd1225 2 года назад

I was 1 when he made this, now have to actually watch it

@user-fu8wu1of2i 9 месяцев назад

Best

@SamaraLevinson 8 лет назад

This guy is still smart and a good educator not saying anything against him im just bored

@Anonymous-mm3qp 4 года назад

next weeks exam hope this video can help me

@firejuggler31 3 года назад

Did you pass?

@JamesVestal-dz5qm Год назад

Leave gravity electrostatic analogy to physics class. My experience says confusing electrostatic with gravity is harmful for clarity of conceptual learning.

@hiteswarimahanand7406 3 года назад

I wish this video has subtitle😑

@JamesVestal-dz5qm Год назад

Explain that hydrogen bonding is a special case of electrostatic interaction.

@JamesVestal-dz5qm Год назад

HO HN HF bonding

@user-ez1km8md8o 9 лет назад

what the q mean on the graphe?

@aquapurity 14 лет назад

where's the BoseEinstein condensate?

@farxiyaxuseen493 2 года назад

i was 3years old when he did this vedio

@mnhshare 2 года назад

I was 5 when he made this video..

@Lemwpn 12 лет назад

Bond, Polar Bond.

@VSPG_SIVANI 9 лет назад

Thanks Sal

@BonsuTheTiger 6 лет назад

G.O.A.T.

@TheCliffjoseph 11 лет назад

falling sal's running a turbine ... I STARTED LAUGHING RIGHT THEN !!!

@featuringfranklin 13 лет назад

A turbine under a stream of falling Sals? I think you may have accidentally solved the energy crisis...

@Uenbg 9 лет назад

5 states (Bose-Einstein Condensate, Solid, Liquid, Gas and Plasma).

@harshitpandey638 8 лет назад

+Uenbg Bose-Einstein condensates and neutron-degenerate matter only occur in extreme situations such as ultra cold or ultra dense matter so there is mainly solid liquid gases( Constitutes of 1% of the universe) and the other 99% is plasma and a very very tiny amount of Bose-Einstein condensates and neutron-degenerate matter.

@Uenbg 8 лет назад

+HARSHIT PANDEY yeah, he also said "in our every day world" but since he mentioned the 4th state "at very high temperatures" (plasma), I thought I'd mention the 5th in the case of very low temperatures (since he's discussing temperatures throughout the video).

@harshitpandey638 8 лет назад

Oh :P

@ThatHBDude 4 года назад

17:36 hol up

@gabriellefontouradeoliveir1272 3 года назад

who is this guy??? I understood everything

@workaholicboy2590 5 лет назад

10 gram of ice at minus 10 degree Celsius is dropped into 10 gram of water at 60 degree Celsius find the final temperature of the mixture how much I could melt I want to solution for this problem

@workaholicboy2590 5 лет назад

Plz

@Newhollandarduino 7 месяцев назад

No captions ..?

@ppatbmw 13 лет назад

@neal1666 this is his class

@riah4806 6 лет назад

Why do the molecules move apart when the temperature is increased??

@MohamedSaleh-fx8no 6 лет назад

Dr. Sal whats the reference that ur depend on plz !!!

@tanayjs3276 5 лет назад

Good

@jonpageknow7691 4 года назад

How can we 9 help me to be a part in this world

@goldenpawn6194 6 лет назад

HAHAHAHAH 99% of the universe is plasma the 1% is us but we have made 3 states of matter you can’t find outside

@bobbypederson 5 лет назад

There's a lot more states of matter than those four

@GenericCoder 13 лет назад

Bunch of falling salls hahaha nice explaining dude thanks alot. Grats from Egypt.

@nihayaturrohmah4230 3 года назад

#23

@ANGRYBEAST592 11 лет назад

4th state of matter?

@maharajdattumaharaj5360 4 года назад

Plasma

@maharajdattumaharaj5360 4 года назад

5th is Bose Condensation

@AmanTV_TechStar 4 года назад

Plasma and Bose Einstein Consedate

@SamaraLevinson 8 лет назад

im bored so im commenting i have to watch this for science class :/

@titaniumx5471 6 лет назад

Me to bro

@Kagome_Shizuko 4 года назад

Sammy Levinson Quarentine Class.

@thirishweyee3436 3 года назад

Can I change my chemistry teacher with you?

@RoBbn64 10 лет назад

Clover Park Tech in-da-houuuuuse!!!

@derrickbaafi6780 2 года назад

Why water has a V shape

@Hurricanecom 8 лет назад

There are 42 states of matter. To name a few, Degen. Matter, Liquid Crystals, Quantum Hall State, Quark Gluon Plasma and Symmetric Matter.

@ghulammurtaza1302 6 лет назад

We’re studying basics here...

@bobbypederson 5 лет назад

Currently there is no finite number of states of matter, as there are theoretical States along with the proven ones, so saying there are __ states of matter makes no sense.

@SamaraLevinson 8 лет назад

Hi avi