Physical and Chemical Changes: Study Hall Chemistry #1: ASU + Crash Course

Just like people, chemical substances can be identified by their individual composition and by the way they react to their surroundings. They have distinct and important relationships with each other. And, like all of us, when put in certain situations, they are capable of radical change. Today, Will discusses the physical and chemical changes substances can undergo, as well as how to recognize which of those changes has taken place.
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[@addammadd]

Man i wish I had a teacher as confident and joyful about chemistry as this man.

[@orionpax45]

And now, we all can =)

[@mackenzie-deltadurocher]

Right! My chem teacher rambled about his ex wife, panicked, would write the wrong equations on the board and we'd have to correct him, cried when we criticized that he was teaching us a wrong technique (that we had learned correctly the year previous)....it was great 👍🏼 this is saving me! Going to take Chem and Organic Chem here soon to check boxes to apply for different program 😭😣 pray 4 me lol

[@kingtyler1925]

@@mackenzie-deltadurocher lol

[@user-qv9ur4tr4r]

I’m not even a native speaker, but I’ve understood everything :) That’s really clear and informative, I swear it was more clear than in my school

[@arizonastateuniversity]

Glad you're finding the content valuable! If you haven't already, feel free to subscribe to our channel at kzbin.info

[@brendabroers9667]

1:52 "When water freezes, it's molecules move closer together" ...true with other molecules, but not water. That's one of the reasons that makes water so unique and why we love it so much! Otherwise, excellent! Prof Brenda

[@sapphiresun9332]

This man is so wholesome I can’t-

[@gordondean2165]

That smile alone would be enough to make this worth watching, the content is a brilliant bonus. An excellent presentation.

[@arizonastateuniversity]

If you found this video useful, feel free to check out the rest of the videos in this playlist: kzbin.info/aero/PLNrrxHpJhC8lRQLPuuQxryL2ViJDhL3ih

[@bad_classu3447]

Dude I got excited at the animal crossing part!

[@YeseniaCastilloo]

AMAZING!!!!!!!! VERY EASY TO UNDERSTAND, MORE VIDEOUS LIKE THIS PLEASE!

[@marguritemcdonaldmusic9922]

You are doing An Amazing Job Mr. Comar!!! : )

[@pepekale9182]

Funny, I have heard this information several times before but never really understood and retain the info...this guy makes it so easy to understand? I don't know why; I find myself enjoying the lecture and can remember the stuff several days after!

[@joanna8978]

Very clear and informative presentation. Thank you!

[@Ellalynn_aesthetics]

I will be taking college chemistry this course, and decided to look on youtube and I am glad that I did. I enjoyed that you share the information and use it into life setting forms to help pull it together. This is great, but I'll take a break from now and join in tomorrow to follow up. It would be helpful to do a pop quiz over the topic to allow students to say the answers to make sure they understand. I know I need to polish up on my note taking skills and this why I share that helpful tip, but other than that it's highly helpful and don't seem to overwhelming. Great collaboration!

[@arizonastateuniversity]

We're so glad you're enjoying the content! If you haven't already, feel free to check out the next video in this series at kzbin.info/www/bejne/hqeae55_bclkhMk, and be sure to subscribe to our channel to find a range of new Study Hall content on a regular basis: kzbin.info.

[@Deardhra]

Love his attitude! Breaks everything down really great!

[@arizonastateuniversity]

We so glad you're enjoying the content! If you haven't already, check out the next video in this series at kzbin.info/www/bejne/hqeae55_bclkhMk, and be sure to subscribe to our channel to find a range of new Study Hall content on a regular basis: kzbin.info.

[@FrictionlessDan]

Please please please make more chemistry videos! You are absolutely amazing!

[@pranavivedula]

Thank you so much! I was confused on this concept earlier but now it makes sense!

[@MerlinsFury]

At 4:18 in, he mentions emission of heat, light, or odor as being indicators of chemical reactions, but what about for something like the aurora? When electrons jump from an excited state to the ground state and emit a photon, they aren't forming new substances, nor are they even changing their state of matter or creating or destroying bonds. They are only changing energy levels. Are electrons changing energy levels within an atom considered a chemical change??

[@AbrarManzoor]

scientific reasoning!

[@pablloabreu7476]

Very nice video. I will use some of thay metodology during classes. Thanks for the project.

[@kingtyler1925]

Thank you so much i really hope i get accepted to this college because you guys are great

[@Butterscotchchick]

Awesome presentation Will!

[@bkbzgaming]

Will just made complicated chemistry very easy ❤

[@G-Tarun]

In this video, we don't dive "too deep into the philosophical nature of identity". But will ASU and Crash Course produce a series where you do? Where you explore the nature of the self and social identity? And other philosophical ideas relevant to being a good human being in our world: ethical reasoning, scientific reasoning, measures and statisics, war and peace, resistance and non-violence, art and not art, education and vocation, etc. Crash Course has an amazing philosophy series, and this will follow up on it covering essential and tricky concepts. I have an unlikely host suggestion: Sal Khan from Khan Academy. He's into cosmopolitan philosophy, and has a studio-worthy background too: his bookshelf with great books. Another possible host and/or writer-contributor is Jonardon Ganeri, proponent of cosmopolitan philosophy and expert in both Indic and Western philosophical traditions. CC Philosophy is one of their best series ever, and it needs the Study Hall sequel like Chemistry. So if you're making Study Hall Philosophy, please consider two more guiding tenets. One is to also impart tactics for mastering the essential capabilities of philosophy, inside and outside the classroom, and to put them to use to improve the world. The other is to also launch it as a Khan Academy course with practice exercises by the KA team. This is another reason for inviting Sal to host it, though I think he'd be an amazing host in general for his genuine curiosity and love for learning across disciplines. That being said, thank you so much for this amazing video. I'm a student not just of chemistry but of philosophy, history, literature, and other disciplines. I find polymathic learning enlightening in living the good life. And I'm so incredibly grateful to Crash Course and ASU for series like this one, and I hope to see more Crash Course/Study Hall.

[@wajeehm.j.4628]

Crash couse is amazing, i hope to translate it to Arabic.

[@agedjizz3380]

So is food turning to poop called a chemical change?

[@fabiocossa2420]

excellent and appealing explanation .. congratulations from (old) Italy

[@mdhamidusman9097]

Lots of love from India ❤️🙏

[@AnaleenAelwyn]

Is it just me or is a gas leak *not* a chemical reaction. AFAIK, there's no change going on there, just the release of smelly chemicals that have been added to the gas. Perhaps there is something I don't know about the process though?

[@michellapoon619]

i have a question. What grade exactly is this intended for? just curious. thanks. btw, this helps me understand more :)

[@arizonastateuniversity]

The content is really meant for anyone who is looking to learn more in regards to chemistry and in this case, physical and chemical changes. That may be a high school student taking chemistry or even a college student who is needing help in their chemistry course. And of course, any other learners who are interested in this topic.

[@michellapoon619]

@@arizonastateuniversity ok thanks bc i am in gr. 9/10 chemistry and i am currently learning some of this

[@ayoyouselflol9167]

Nice video!

[@arizonastateuniversity]

Glad you're finding the content valuable! Subscribe to our channel to find a range of new Study Hall content: kzbin.info.

[@Miss_Claire]

I'm excited for more!

[@maysammirzakhalili4862]

Me too🙃🙃👌🏻. The part that he gave pancakes to his best friend was cute.

[@Israelg05]

Omg the apple tree part is part of a game I play called animal crossing new horizons

[@mariarichardson1700]

I'm starting school again and absolutely terrified of the chemistry course I will need to earn my degree. I never took it in high school and I'm so thankful for this introduction! This 11 minute video has shown me more than I ever learned before and I can actually understand it too!! Thank you so much (: I'm so excited to watch the rest of these videos.

[@j3s333]

Nice vid

[@kingtyler1925]

I really want to go to Arizona state for football and to study sociology or Clemson university these two are the most best colleges i really want to go to coming into my senior year and ever since I was a kid I wanted to go to either Clemson or ARIZONA STATE Thanks for the video is was really good

[@arizonastateuniversity]

It’s awesome to hear you’re considering ASU as your next step! You can learn tips on preparing for and applying to college with our College Bound playlist: kzbin.info/aero/PLNrrxHpJhC8kGdCt6YZXvwMIXCfXLzATt or discover what it means to be a Sun Devil here: kzbin.info/aero/PLNrrxHpJhC8mXzi9MYRlZplrsNEPUMOeg. Check out admission.asu.edu for info on admission and scholarships, academics and campus life. 😈

[@amiraali818]

So helpful!

[@arizonastateuniversity]

Great to hear! You can check out the next Study Hall Chemistry episode called "Types of Chemical Reactions" at kzbin.info/www/bejne/hqeae55_bclkhMk or subscribe to our channel to find a range of new Study Hall content on a regular basis: kzbin.info.

[@garfieldthekhat]

Real

[@laaais00]

Thank you!

[@arizonastateuniversity]

You're welcome! You can check out the next episode for Study Hall Chemistry called "Types of Chemical Reactions" at kzbin.info/www/bejne/hqeae55_bclkhMk or subscribe to our channel to find a range of new Study Hall content on a regular basis: kzbin.info.

[@memomo6203]

Thanke u .. great❤😍💖🍀

[@mjames7674]

Wait... My apple tree _does_ eat pancakes... Should it not?

[@memestealer426]

juan.

[@AbdullahAhmad-wk2fs]

uan.

[@bkbzgaming]

you possibly can’t revive the Binod line of memes eh.

[@armyforlife3191]

💜

[@hetaeramancer]

Is this an official crash course sponsored chemistry series?

[@ManicDwarvishDreamDad]

🍸🔍🪄

[@Official_Miles]

sigma fortnite skibidi toilet fanum tax ohio rizz...

[@V14K]

??????

[@sleeplesslovr]

When presenting, it's best to pronounce words clearly to enable a better comprehension for the listener. Please don't take offense. Room for improvement.

[@addammadd]

Often, when we fail to understand things, we project the responsibility for that failure onto others because our minds have trouble accepting our own flaws. Please don’t take offense. Room for improvement.

[@user-cs4mo3dr5h]

What he said

[@jengreen3883]

Have you tried watching with the Closed Captioning turned on? It really helps!