It's insane how much easier it is to understand this guy compared to my actual chem teacher. I've watched so many of his videos, pretty much one of the only kids in my chem class not failing.

One does not simply, flush R2 down a toilet

you've taught me more than my chem teacher taught me all semester!! thank you!!

What wre you doing with R2D2 in the bathroom

Flushes R2D2 down the toilet "There are no mistakes" Master Oogway

So many people pay 10000000s of pounds/dollars/euros for private tutors but it's all on the Internet, FOR FREEEEE

I have been in college now for 3 yrs. This is the best instructor I have seen to date. please make more videos. You really know how ot get the point across and you are very easy to listen to.

You're an awesome teacher. I keep wondering why they have the best professors in high schools but the worst in college.

please do more of these chemistry videos! Gas laws, Thermochemistry, and half reactions would be definitely appreciated :)

you're a good teacher! you helped me for my test tomorrow, thanks!

I love the Star Wars metaphor!! Keep up the awesome work!

so when flourine bonds to Yoda, does it become midiflourine?

Working out if the electronegativity is between those numbers to find it's type of bond makes everything so much simpler. Thanks so much for this!!!

you have just saved my entire chemistry grade in one evening

polar covalent :)

You have a calm, clear way of explaining a difficult subject. Thank you Mr. Anderson.

I have no idea what my teachers are talking about most of the time. Thanks a bunch, you're keeping my ship afloat. :D

I failed chemistry because i didnt know all these simple rules, now that i know i should of came here makes me fucking depressed.

Thanks for posting this! It's been very useful for studying before finals! :)

I learned more right now in 8 min. than I did in a semester in chemistry class in a private university! wow. Thank you!!

you are really really great at explaining and making it clear, you just make it so easy to learn every detail that a lot of times its skipped in school which causes a lot of confusion..thank you!!

You have helped me so much with biology, chemistry and everything else. Thank you!

Great video! Thank you, Mr.Andersen. This is much more easier to understand than what I learned in class.

Chemistry has plagued me since I was in high school in the 90's. This video has been more helpful than any class!! Thank you! Please make more

The thing that makes me understand easier is that you give examples of things we use everyday and you make it look easy!Thanks!!!!!

really hit me when he told the sad story of flushing his r2d2 figure down the toilet. Very emotional moment to hear about.

Andersen, thanks for all of your help!!

i love the way you describe this, thank you soo much.

Science is hard for many students because it requires lots of illustrations, experiments, etc for a student to get it. Absence of that student simple can't visualize what they are taught. not to be taught same way as other classes. Great teacher!

great video! thank you, mr. Anderson!

What program is used to make your videos? Anyone know?

this is EXTREMELY helpful omg now I'm enjoy chemistry more

I learn more from watching your videos than I do in my actual chem class. My teacher sucks. Thank you so much!

watching this literally 10 years later for biology class 🤪

Thank you Mr. Anderson!

This made so much more sense than my textbook. Thank you so much!

you should come teach at my school. It would make life so much better. i actually passed biology last year thanks to you and this year passing chemistry thanks to you.

“haan solo” Lol great vid!

From this video ive learned more than I have all year...

Dude, I would like to mention that if I had you as a teacher in high school and college I wouldn't have run away from science. I hated it. But your videos break it down for people like me where understanding science doesn't come natural.

Dude, this was the best video ever. Thank you so much :)

Why is this amazing man better than every college professor? Thank you so much for your videos! 😁

Man your videos are great, your an excellent teacher! Helping me a lot with my school work.

I love your teaching methods! Thankyou so much

THANK YOU FOR MAKING THESE AMAZING VIDEOS!!! LITERALLY LIFE SAVER!!!!!

Mr Anderson is the man! Such a great teacher

do you always subtract in the same order to find out if it's ionic, polar covalent or non polar convalent? And if so, then there the answer is never negative?

These are really awesome videos... great work!

Thanks for this video, it helped so much!

love you, thank you for this vid

I don't think our periodic table has electronegativity listed on it so how would you find the exact number then?

Excellent analogy, very creative!!

Your videos have helped me SO much! THANK YOU! :)

You are so helpful and easy to understand then reading off articles!

the video taught me a lot about bonds and helped me learn to the test.

Very easy to understand you. Thanks.

Love your videos, you are excellent at teaching.

great video, you help me out a lot, keep doing what you are doing.

Very Clear Instructions Sir. I appreciate the assistance differentiating the two bonds.

THANK YOU SO MUCH! I FINALLY GOT IT! KEEP UP THE GREAT WORK! I MEAN IT, YOU HELPED ME SO MUCH!!!!!!!!!!

You just helped me so much...keep 'em coming.

A missed opportunity for a great metaphor of molecules bonding by sharing partial collections of figures between friends. Your friend could share their R2-D2 with you so that you both could use it.

I sat down to watch your vid. and in 8 min you've allowed me to grasp the entire chapter I was struggling to understand. Thank you. You've gained a new viewer and subscriber! I generally hate the real life analogies too but the Star Wars one definitely did it for me. I thought you should know. =-)

My name is Yoshikage Kira. I'm 33 years old. My house is in the northeast section of Morioh, where all the villas are, and I am not married. I work as an employee for the Kame Yu department stores, and I get home every day by 8 PM at the latest. I don't smoke, but I occasionally drink. I'm in bed by 11 PM, and make sure I get eight hours of sleep, no matter what. After having a glass of warm milk and doing about twenty minutes of stretches before going to bed, I usually have no problems sleeping until morning. Just like a baby, I wake up without any fatigue or stress in the morning. I was told there were no issues at my last check-up. I'm trying to explain that I'm a person who wishes to live a very quiet life. I take care not to trouble myself with any enemies, like winning and losing, that would cause me to lose sleep at night. That is how I deal with society, and I know that is what brings me happiness. Although, if I were to fight I wouldn't lose to anyone.

Perfect! Thanks.

That's all nice but what is visually the difference between all these bonds? And what does it mean when atoms share electrons? Are the electrons going in 8s around both atoms?

Question: Ionic Bonds: if one atom loses an electron to another and then proceeds to bond with the atom which gained the electron, how is that different from a covalent bond? I mean if they're not sharing an electron, then what is holding the two atoms together? Also how would you draw an ionic bond, versus a covalent bond?

This is easy to understand! Thank you so much, chemistry is such a struggle for me but this was really simple :) And WOO Star Wars! That really helped.

There are ionic bonds that consist of both non-metals, so it can be a bit tricky. But generally, an ionic bond consists of metals and non metals. A basic way to define an ionic bond is atoms with a big difference in electronegativity such as metals and non metals.

Mr. Andersen, you are the Boss

wow! i seriously love and admire your videos you are awsome

You sir, are an AWESOME teacher.

I love your videos you are very good at explaining these things

Thank You! I'm a freshman in College and I'm studying Molecules in Biology right now and how they bond and this helped me greatly! Loved the Star Wars Idea! :)

Thank you I bet your a way better teacher than my ESS teacher

Very clear thank you!!

awesome! thanks!

Thank you for the help. Im taking bio in college but the chemical aspect of it is killing me. Thanks again!

you are the best teacher ever :)

If I am given two elements (e.g. Ca S) and I need to compound a chemical formula from it, is there a way I can tell quantity for each atom (e.g. Al2O), by not learning by heart?

Dude you rock

Thank you so much, Genius!

studying for the ACS... you rock.

Hi! I have a question: Why did you subtract the electronegativities when calculating the total electronegativity for a molecule? For example when you were calculating the electronegativity for H20, you subtracted the electronegativity of oxygen and hydrogen. Why?

Great Helper, thanks!!!

how do i get the electronegativety of an atom without a chart? is there an equation

Thank You for the video. It helped alot!

we need more chemistry video mr Andersen

How would you use the periodic table to determine the electronegativity of each element, you mentioned something about making your class do that

Thanks so much for teaching me, i`m so understand to you :)

The table that he showed doesn't always work, for example AlCl3 , as he shows it is a Polar covalent Bond(3.0 -1.5 = 1.5) but it is an ionic bond , becouse an ionic bond is a bond between a metal and a nonmetal. Thumbs up so people can see !

Thanks! Although I am only retaining little bit by little bit.. I'm happy this video answers a few of my questions! xo

Great explanation!

Thank you so much, you are my hero.

for the electronegativity do you always subtract the higher one for the smaller one? Ex. NaCl at 7:50? Why is't it Na- Cl or .93- 3.16? Thanks

I paused the video around 2:08 or something bcos I had to take care of some business and I was SO CONFUSED when I continued the video HAHAH

I'm very sorry about your R2D2

you are such a great teacher

So... I was looking at boron tribromide with my students. Using electronegativities, this is a polar covalent molecule. But the molecule itself is not polar because it is trigonal planar, and the polarities balance out. So... the polarity just refers to how balanced the sharing between atoms is, not whether the molecule has a net polarity bringing intermolecular interactions, right?

You flushed R2D2 !!!!?!?!?!