Introduction to Chemical Reactions
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- Опубликовано: 12 окт 2015
- Introduction tutorial video to chemical reactions explains chemistry to school & science students by showing how the bonds of H2 and O2 molecules breaking apart and rearranging to form H2O molecules, and the tell-tale signs of a chemical reaction, including energy changes.
Warning: This video contains explosive sounds that might alarm you.
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/ @atomicschool
About Atomic School:
Atomic School supports the teaching of Atomic Theory to primary school & science students .
We provide lesson plans, hands-on classroom resources, demonstration equipment, quizzes and a Teacher's Manual to primary school teachers. Animated videos that clearly explain the scientific ideas supports learning by both teachers and students. As a teacher, you don't have to look anywhere else to implement this program.
Our work has been verified by science education researchers at the University of Southern Queensland, Dr Jenny Donovan and Dr Carole Haeusler, who confirm that primary students are capable of learning much more complex scientific concepts than previously thought, and crucially, that they love it. Students run to class!
The program has been trialed in Australian schools as well as schools in the Philippines, Iran and India. It is conducted as holiday workshops at the Australian Nuclear Science and Technology Organisation, the Queensland Museum as well as the World Science Festival.
It has attracted wide media interest, including TV, radio and print, and the research data has been presented at prestigious American Education Research Association and Australian Science Education Research Association conferences.
Atomic Theory underlies all the other sciences- genetics, electronics, nanotechnology, engineering and astronomy- so an early understanding will set them up for a more successful learning sequence for all their science subjects, and support their mastery of mathematics as well. We also have extension programs that cover Biology, Physics and Astronomy to an equal depth.
About Ian Stuart (Email: ian.douglas.stuart@gmail.com):
The founder of Atomic School, Ian Stuart, taught Chemistry and Physics for 25 years at senior levels before he realized that his 8-year old son, Tom, could understand Atomic Theory at a much deeper level than he expected. After visiting Tom's class at school, he discovered that his peers could also grasp the abstract scientific concepts, as well as apply it usefully to the real world.
Ian then developed a program to teach the advanced concepts of high school Chemistry, Physics and Biology to students 10 years younger than they normally would. He found that this engaged their interest in modern science early, and sustained it through to high school and beyond. It also sets them up for future success in their academic and career paths.
Ian has a Bachelor's Degree in Chemistry from the University of Queensland and a Master's degree in Electrochemistry from the University of Melbourne.
Connect with Atomic School on social media:
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Video transcript:
Who else needs to use this video for online classes because of COVID 19?
me
Me
me bruuhh I hate online school 😪
My whole class is watching this vid rn
I did and the explosions are the highlight of my day
I was assigned this for school, and although I already understand chemical reactions: this was a very well-made video! Thanks!
Thanks for your feedback, Justin.
@jordan garcia wdym? This is a good video
Its really creative, you know, the way you show chemical bonds......Easy to understand.
Bravo!
Thank you very much!
Who put such a banger in for background music?
hell yeah
As a teacher, I like your videos as they are made delicately to deal with some concepts that are hard to introduce to the elementary learners. The level of explanations are kept to a manageable level to the learner to cope and learn the basics and still adequate to give them a consistent satisfactory answer to the numerous questions they may have at that stage. well done, and good luck.
Thanks Sam. From teacher to teacher that's high praise. My main adaption for elementary school students is to define Atomic Number in terms of the element's place in the list from lightest to heaviest ... which is easy for them to grasp. It means that they can meaningfully understand the PT immediately. The more modern definition re number of nuclear protons can come later.
i have an exam and this was very helpfull. Thankss
Great to hear, marta
your the best chemistry teacher I've seen so far, you break every into pieces. Bravo!
Thank you Ozioma!
@Ozioma Chioke : an atom smasher! BANG!
@@eurekal1903 Just heat 'em up and they'll smash harder.
that was pretty cool and enjoyable . Wish my school as this way
Thanks Eugene!
THIS IS THE BEST VIDEO YET! This has help me massively in school. Thank u so much!
Most addictive videos in chemistry.
Great comment. Thanks.
This is something I was looking for,
Good to heat Aashish
This video has right to have more than million views
Yet another piece of art form Ian Stuart channel! It has been pleasure to watch. Simplicity and clarity prevail...not to mention eye-friendly graphics.
Thanks for your particularly kind feedback, Richard.
A good introductory video to chemical reactions. A number of key terms are introduced appropriately. "Sufficient energy is needed for a reaction to occur" could have been included in the script where heat is applied. Nice video. I like it.
Thanks Leon!
Thank u so much I understood everything perfectly
Great to hear Anand.
I am his son harsha
I'm watching this for online learning, covid 19
Sir your explanation is very clear to understand. I thought chemistry is very confusing to learn but you proved that it is very easy and clear !!!!
My name is harini !!!
I am pleased, Harini
Its really amazing video for the students to understand
Thanks Kirti
This video made me very helpful 😊 thank you for this video
You are welcome, Asha.
I am a big fan of your channel Thanks ❤️
Great to hear, Yoni.
Such a helpful RUclips channel . It really is amazing and useful .😍😍😍😍👌👌👌
Thanks for your great feedback, Tuhina
@@AtomicSchool you are welcome sir
😊😊😊😊
bro you started to sound like a monologuing villain made it very fun to watch
Very good video thanks a lot
You're welcome, Lolo!
The best channel !
Thanks Max
Ian,
Brilliant videos!
Keep up the fantastic teachings.
Cheers.
Thanks heaps, Mario
HI
Thank you, Mario
This is excellent. Perfect for my intro chem class. Thanks so much for making it.
Thanks for your great feedback!
past 50 years old it's great to come back to school!!!!
Great to hear :)
Great visual explanation.. You are very good at this
Ian Stuart q
Thank you Jacob
It’s been 5 years
Thank you!
You're welcome!
ABSOLUTE BANGING MUSIC
Frrr
YEAH I KNOW RIGHT- BRO I’VE BEEN LOOKING FOR THIS COMMENT! I WISH THAT THERE WAS A VIDEO WITH JUST THE MUSIC THOUGHH
Perfekt explaning video!! :D thank you
Thanks for your feedback, Arnabjorg
6:53 pressure change is also an indicator.
Yes, and pressure can be an indicator of a physical rather than chemical change.
Super Mega Excellent and extraordinary video as all that I have seen so far created by this great master professor. Thanks so much Ian Stuart for teaching me and for you passion for knowledge! I can't wait to see which video is next! Julián Gómez Giraldo.
Thanks Julian
Very nicely done. Specially the first half. Is there some way to differentiate dissolving? My students have been confusing this with the process of something going into solution, i.e. sugar dissolving into water.
Thanks George. How about pointing out that sugar in water can be separated back into sugar and water by physical means e.g. evaporation. But Mg dissolved into water (making Mg(OH)2) would not produce Mg by evaporation. The ultimate test is whether a new substance is made ... then it's a chemical change. Sugar molecules remain sugar molecules when floating around in water.
@@AtomicSchool That's what I've done. The confusion comes when an unfamiliar solid disappears in a liquid. Students don't have any way of discerning if the solid went into solution or became a new compound. I stick to change in temperature, formation of a precipitate, color change, production of a gas and emission of light. Thank you for your response.
nice video
Thank you!
hello. love the videos and explainations. thank you...i was wondering why the elements didn't rejoin with each other after the heat tore them apart. why did they form a new product ? wouldnt the atoms want to rejoin with their own kind?.thank you and sorry if i missed the answer in the video.
Hi Luis. Great question. Hydrogen would "prefer" to join with an oxygen atom than another hydrogen atom, releasing more energy in the process. This means that the bond between H and O is stronger and more stable than between H and another H. So H2O is the preferred outcome from a rearrangement of bonds, rather than H2 and O2.
@@AtomicSchool Could you please be a little more specific? What makes the bond between O and H more stronger and more stable than H and H bond?
@@MohammedAhshanIt's a bit beyond the scope of a reply to explain bond strength, but it relates to how the negatively charged outer electrons of one atom are attracted to the positively charged nucleus of the other atom. With different nuclear charges, and electron positions, different pairs of atoms attract to different strengths. You can see some explanation here: ruclips.net/video/qc1TGwedSIc/видео.html
@@MohammedAhshan Oxygen is what we call more "electronegative" than other atoms. The electronegativity of an atom just refers to its tendency to bond with other atoms. The more electronegative, the more likely it is to form bonds. Atoms on the right of the periodic table (gases) are more likely to form bonds and be electron stealers and sharers. Oxygen, in fact, is more electronegative than any element except for one. Even in the water bond, the electrons spend slightly more time hanging out around the oxygen, giving water the characteristic bent shape portrayed (though not explained) in the video.
the info is important, NOT the loud and aggressive music.
Herbert Bieser oh get over it
Bro that is so aggressive it like heavy metal it’s hurting my eardrums what Antonio M said get over it
Is this from Pakistan😂😋
its piano with bass thats boppy thats all
I like the music, it’s really cool. Bangers, I swear! Wish it said what song it is in the description!
many many thanks, splendid
Thanks Afif!
mind me asking what the soundtrack/music name is?
Sorry Dimirios ... I got it off a stock audio site but didn't record the name.
I don't know why everyone's complaining, this settles all the confusion for me when it comes to visualizing them.
this is deep
Thanks Moustafa
if u see the word atomic in a channel then u know its good
@@moustafakhattab8142 :)
photo shop skills 10/10
Thanks
How do you design that animation dear Sir
Hi Kaleem. I use a lot of tricks, but mostly the software Camtasia helps.
Good thing my teacher doesn’t teach so I watch these instead
I'm glad that you like the video.
Who else just watched this video with their entire class online becuz of covid 19?
Me too :)
very well explained
Thank you
good job sir, to try to upload more videos sir....,
Thanks Mahesh. Working on it :)
Is this Evaporation/Condensation or Fission/Fusion? 🤔 If they speed up, they warm up because of friction and then they explode, creating H²O.
Or, is Evaporation/Condensation the same as Fission/Fusion?
Fission and Fusion are about the nucleus of an atom slitting or combining to make new atoms. Evaporation and Condensation is about the change in the state of matter due to energy applied to or taken from a substance, but the substance is still the same substance.
Julie is right!
@@AtomicSchool it looks exactly the same at different molecular levels. Or is it just me? 🤦♂️
any BTS ARMY here......if noticed it was published on 13 OCT...Park Jimin's B'day.....He is a member of K-POP boyband BTS.....what a coincidence
i ammm
nice sound effects
bruh
:)
Good day Ian. Cheers and thank you for this video production... a quick question about the events described at 4 mins 17 seconds.. Just wondering why the 2 oxygen and 2 hydrogen atoms didn't form Hydrogen Peroxide (dioxide)? I speculated that the single oxygen atom (O1 ) would establish a bond as well. Would you kindly describe the conditions on which this would occur?
Peace
Great question! Actually, H2O2 would form, but only briefly because it is less stable than H2O and would soon fall apart. There are 2 reasons for this (1) The O-O bond is of lower strength (needs less energy to break it) than O-H bonds and (2) breaking one H2O2 molecules forms TWO fragments, which means that the tendency towards increased entropy (disorder) favours this process. You can see the various bond energies of various bonds at www.wiredchemist.com/chemistry/data/bond_energies_lengths.html.
Thank you Ian, I enjoy the explanations presented in your video presentations. Wow, since I was a younger man I held a definition of a Genius..."One who explains a complex subject simply and succinctly". Thank you, and please continue to enjoy the blissful nature that you reflect.
Peace,
Jamal
Thanks for your high praise, Jamal.
H2O2 probably would form briefly, and also the original H2 and O2 molecules. However, the O-O bond strength is relatively weak, and this molecule would fall apart quickly under high energy conditions. However, the strong O-H bonds in H2O will keep it in tact. That's why water is so stable.
Yeeeeeeeeeeeeeeeeeeesss
This is a balanced chemical equation because it has the same number of atoms in the products as the reactants.
Correct, Robert. Also, there are the same number of each type.
Did he stop making videos?
love the bang and music
Can I have the name of the music
why doesn't HO break down by the speed itself and stay as radicals?
The OH radical is unstable, as O has only one bond being used. It will quickly bond with something else. Eventually the most stable arrangement, which is H2O, will emerge, because the O-H bonds are the most stable (strongest) of all possibilities.
@@AtomicSchool I see! thank you that made so much sense now.
I have a doubt sir.. when we heatup O2 and H2 molecules, atom are seperated . Forms a new bond H2O (plus one atom of oxygen is left). Why wouldnt it make a bond with the same atoms again and remain as H2 and O2?
Great question, Vinay. Indeed the old bonds can re-form, but they are not as strong as the new bonds. The bond energy of an O-H bond is greater than the combined bond energies of two H-H and a O=O bond, so when it forms it is more stable. (If you search for bond energy you can check this.) The high heat would keep re-breaking the old bonds, but the new stronger bonds would be the only ones remaining after the reaction is complete.
@@AtomicSchool Got it sir. Thanks for your timely reply.
@@vinaygupta2436 P.S. The reaction is 2 H2 + O2 --> 2H2O
The bonds that are broken are two H-H and one O=O, while the bonds that are made are four O-H. The bond energies of four O-H are greater than two H-H and one O=O, making the product bonds stronger and therefore more stable. It's also why the reaction releases energy, that is, is exothermic.
@@AtomicSchool Alright sir.. Thanks.
Come on AYAAN tell us what’s chemical reaction is! Lol what u basically said- wow AYAAN.
Came here for the education left with that background music
what music is this? And what songs did you use?
Same question
Hey perfect! I LIKE the music though, do you mind me copying the music for instance on my channel? Don't worry. I will give you something in return. And that is your cannel's name on my videos!
i have taken this music from youtube library. u may use it.
School TV, thank you very very much. As soon as I get to work on a new video, your music channel will be there
good work
Thanks
Real concern about misconceptions created in this video. Firstly, solids dissolving is a physical process not a chemical one. There is no chemical change as the solid that dissolves could be recovered by removing the solvents. Secondly by stating that "if the bonds absorb energy.....then the reaction is endothermic" causes areal and significant problem with students. Fundamentally bond breaking requires energy and is endothermic (energy input) and bond formation is exothermic and releases energy (energy output). It is the difference in energy input and output, therefore,that determines whether the reaction is Endo or Exothermic. If you are watching this as part of your Covid 19 science classes then be careful.
Hi Steve. Dissolving of a solid can happen with both physical and chemical changes,. It's called 'dissolving' in both cases. Boiling is a physical change yet produces bubbles of gas. The enthalpy of some physical changes e.g. heats of solution of hydrochloric acid and sodium hydroxide, can be larger than the enthalpy changes of some chemical changes. Physical and chemical changes can share "signs" so it's not a binary situation.
The video does not discuss the energy difference between bond breaking and bond making, only the net changes. Does it say that? Bond breaking and making needs another video. But because it shows both bond breaking and bond making earlier, it sets up the students for the next video. But at 8 minutes the video was already a bit too long.
What the hell, I was reading for chemical reaction since 4 year but I couldn't understood .
I hope this helped Musarit :)
Lol, my suscription made you get 9300 suscribers. :D
040623 💘💝💖 Thank You
ALGUIEN ESPAÑOL??🤷♂️
que mas pues
Nope
#RACHELISCANCELLED’NT TAKE THAT AYAAN CHAUDHRY
online class anyone else?
Can i ask a question
Sure
@@AtomicSchool what speed up when you added heat
@@GT-uh3ph Heating molecules makes them go faster, and have more kinetic energy. This means that when they crash into each other , they are more likely to bust apart and chemically react to form new molecules.
This is epic video ! Love From Pakistan 😘😘
Thank you
What about H²O²
H2O2 can form, but it's less stable than H2O so it usually falls apart instead.
#RACHELISCANCELLED’NT
When ice gets converted into water, some people might think that it is an exothermic reaction as the temperature of ice is greater than that of gas but the real thing is that ice absorbs heat from its surroundings to break the bonds of the molecules. The molecules use up the heat to to gain kinetic energy and get far from each other to become water.
And therefore, this reaction is endothermic.
You are right
I have a question
good explanation, loved all your videos, but i did not like how you put a very loud bang sound when heating the molecules since i was wearing a headset and paying attention - it was a terrible experience for me..
Sorry Jakob
WHO ELSE IS TRYING TOG ET THEIR TEACHER TO RELOAD THE PAGE SO THAT YOUR WEIRD CLASS CAN SEE THIS MESSGAE:
Headphone users be aware 2:20
hi i am a dank meme
I'm hot meme ;)
lol the etiting
lol your spelling
@@imlosingmyfuckingmindright5259 LOL your capitalization
www.stuartmethod.com does not work.
Try www.AtomicSchool.com
That explosion sound being turned up my 3x while the information is like -3x normal has earned you a dislike.
As always, people who are conceited, pompous and self-deluding enough to include the word 'truth' in their handle (yours even including an admonition to others who you obviously feel to be less knowledgeable than you) denigrate others better and more accomplished than themselves, and yet actually expect themselves to be taken seriously. This gentleman (Mr. Stuart) has an outstanding reputation in the field of Education, he is an excellent teacher, and has developed a comprehensive system for instructing young students in this topic. He teaches internationally, and is very adept at creating educational videos that explain the primary concepts of the topic clearly and in an interesting, visually pleasing manner.
What the hell have YOU ever done?
@@davidschmidt6013 TLDR, skipped to the last sentence, i have planted 100's of symbiotic plants, donated to Donald John Trump the most inspirational man to live in modern history and I teach history that liberals attempt to burn like the Nazis who burned all books that didn't match their narrative.
Thanks for the defense, David
a
b
c
d
Simple and clear - the reason bonds break is because you hit them hard enough! (Heat)
Thanks!
i hate the exploding sound, im using headset :(
selfish hydrogen
Haha
The vid is pretty good but did u know my hero academia is a VERY BAD ANIME
this is a bad vid
this is a good vid
Hmm. Can you give a reason? It would help me improve.
I agree its for nerds like atomic school
why cant humans just chemically react molecules of H and o to create WATER and solve d droughts that affect many countries around d world.........
Anil Sharma because a ton of energy, usually in the form of heat, is needed to form water. All of the water that we see today was already here when the universe was created. It’s just reused.
wrong information
Which part is wrong, Amil?
Noone like mha
My hero academia is very bad
My hero academia is a bad anime
but cod mobile is godly
sir i m big fan of ur wurk sir
sir plx never stap ur wurk sur
@@mustafachughtai8874 why
Sir u are very very inspirashoinal