Redox Reactions

[@kaden56]

Are youtube teachers really better or is it something about the setting of being alone in front of your computer watching the video and having access to a pause button? Whatever it is it's a real thing. I could earn a better education from youtube for free than paying for one at my university. To bad a shiny KZbin diploma won't get me a job that puts food on the table. Thank you for your help!

[@Whimsicalf1]

We are totally buying diplomas at Universities, the real learning is always on us...

[@SabyUsa1]

Mainly because our instructors don't teach...

[@karahfreeman]

This is sadly true, I was literally just talking about how horrible my instructor is, I learn way more from KZbin.

[@bodake2557]

It should be a crime specifically when it comes to IT learning, The classroom lags WAY behind. I was taking a web development course, this is in a college BTW and the most that was taught was how to use the tag in HTML and they called it programming lol.

[@classicbass3456]

Its the use of animations and writing things out directly in front of you. Also, being able to pause really helps. I do find youtube videos are better because they are pre-planned on a specific topic a teacher often has to teach many things throughout the day and will forget to say certain things that could be very crucial for someone to learn. A simple "i did this because of this" can be the difference between "ohhhhh i get it now" and "i lost you half way and didnt understand the rest".

[@RemiTa1st]

I swear to god you're the best teacher i've ever had in years i don't know how to thank you. I feel like writing a comment isn't enough i want to thank you so freaking much. you are the best and I wish you all the best and that you live a life full of laughter and happiness.

[@f1shispro]

remember.

[@robby4780]

You are the single reason I passed bio and are now the single reason I am passing chem. Bless you sir.

[@mathyouprayter]

Oxidation numbers: Mn=0 Pb=+2 (NO3)2=-1 -----> Mn=+2 (NO3)2=-1 Pb=0 Manganese is being oxidized Lead is being reduced The reaction is a Single Replacement Half Reactions: Mn ---> Mn(NO3)2+2e- Pb(NO3)2+2e- ---> Pb

[@donnellray306]

Can you explain how you got (NO3)=-1?

[@mathyouprayter]

Because Nitrates charge is -1? I may have done it wrong though. Ill check later and reply back.

[@donnellray306]

No wait you did it right, I just forgot that the oxidation rule for ions is that it is always its regular charge

[@chloesargent1135]

Sorry can you explain how you got (NO3)2=-1 and Pb =+2 please

[@BouBoow]

Chloe Sargent NO3, nitrate has a negative charge (-1). According to the rule, the oxidation number= the charge. Therefore, NO3= -I Because we've got 2 nitrates (NO3)2, 2*-1=-2, so Pb has to have the oxidation number +II (+2) :)

[@modkaz19811]

most of the comments agree that u r the best who can simplify the most complicated science .... lucky to have u

[@lts2521]

It never fails, I can spend hours trying to understand something in my textbook, but your videos are always far more helpful! I cannot thank you enough for helping me make A's in college this semester. You're basically teaching me chemistry AND A&P rather than my instructors. THANK YOU!!

[@f1shispro]

remember.

[@onlyparpar]

Thank you for helping me understand so many things that I never fully understood before, both in chemistry and in medicine. I always recommend my classmates to watch your videos .

[@christianerickson5994]

SO HELPFUL!!! I have my AP chem test tomorrow, and your videos have been so helpful all year! YOU ROCK!!!

[@jamilla99]

So far, you are the best chemistry teacher I found on KZbin, you are better that my university teacher, thank you!

[@istarzgirl]

Thanks for the video, I find them a great way to review before the AP chemistry test! My teacher taught us a way to remember oxidation and reduction in terms of anode and cathode, "a" in oxidation for anode and the "c" in reduction for cathode.

[@istarzgirl]

No problem :) and as I continued watching his videos he taught the other way to remember "An Ox and a Red Cat", so either way works to remember.

[@jimena6264]

The way you explain it makes it so comprehensible and has helped me a lot, thank you so much for doing all this videos!!! Greetings from Mexico!!!

[@memjaym]

I was stressing out so much because I simply could not understand Redox reactions from reading my textbook. But you sir, have made me understand this in just over 11 minutes. Thank you! :D

[@asmaamostafa3812]

6:58 Mg+2HCl----> MgCl2 +2H2 this equation is not balanced, the coefficient next to the hydrogen should be removed Mg+2HCl----> MgCl2 +H2

[@ChocolateThunder1620]

I noticed that too!

[@smurProductionz]

confused me

[@maximilianfrendeus6661]

yup, I noticed that too haha

[@jkgan4952]

yup thanks!

[@andyablett1466]

Consistently delivering excellent tutorials. Great job and thank you!!!

[@keelythurecht549]

My exam is tomorrow! I love you Mr Anderson!

[@dajungkim4983]

Thank you very much!!! This helped me alot! Watching this video is more effective and more worthy than 3 hours of boring chemistry class at school. Thank you once again:)

[@Phantom0701]

Dajung Kim

[@joliexxxable]

you just save me!!!! I have a test tomorrow and I finally was able to understand this; but it was thanks to you!!!!!!!!!!!

[@wetnwild1976]

thanks!! very helpful, ive started a biomedical science degree and i have no chemistry at all before I started it!! this has helped me A LOT xx

[@xelaceey1298]

Absolute life saver, all questions answered. Thank you so much

[@K3707H]

Thanks Paul! I learned a lot here that my teacher didn't know how to teach!

[@fdsChan]

Thanks a lot bozeman science, yet again you have made a lot more intelligent in just 10 minutes of your video. I would just like to point out to everyone that the chemical reaction equation between magnesium and hydrochloric acid is not balanced

[@ForlanElCapo]

awesome vids! everyone loves khan academy, but i have to say a lot of your vids are more clearly and quickly explained than khans. sometimes he takes too long to explain simple concepts, but the pace you go through is perfect!

[@Enjoy714]

You are an excellent teacher. Thank you.

[@imapabdou2503]

I love you, Man. you really clarified everything for me.

[@hellodolphin9284]

Thank you to that person who translated to Thai! So helpful !

[@bb4715]

+Stamp Bp i love thailand

[@bb4715]

+Stamp Bp I'm from BKK

[@rezwannazeri]

You're a lifesaver Paul, god bless

[@Smauggish]

Thank you soooo much for making your videos, without them, I'd be one lost chemistry student. You are awesome! :D

[@RinKagamine02WRYYY]

You👏🏼taught👏🏼me👏🏼when👏🏼my👏🏼teacher👏🏼didn’t

[@periodt1117]

HEY ARMY YOU STILL ARMY??😀💜💜 i know that nico nii ANYWHERE

[@notclaryc]

Bozeman I'll love you to do more videos about chemistry 🙏🏻 Your way of explaining and teaching makes everything easier to understand damnn

[@laurendennis3248]

Pb(NO3)2(aq) + 2e- --> Pb(s) REDUCTION Mn(s) --> Mn(NO3)2(aq) + 2e- OXIDATION Anyone agree? Thank you again for all your help!

[@willybillyrillysilly317]

i love you bozeman science

[@Lauraandreinaa_]

Your videos are so awesome!!! Thank you so much for taking the time and effort to explain concepts clearly and thoroughly. You are the reason I am passing (and understanding) chemistry. Thank you so much!!!!!!!!

[@sriganesh4544]

you r'e the best teacher ever

[@alexmarrero2]

This video should really have shown how to find the redox reaction for that Mn + Pb example

[@Akshyaofficial]

AM I CORRECT????????? Mn + Pb(NO3)2 ----------> Mn(NO3)2 + Pb Mn=0 Pb=+18 N=-3 since they have 2 N it's = -6 O=-2 since they have 6 O it's = -12 -------------> Mn=+18 (Mn have increased in its oxidisation state from 0 to +18 so it is considered as oxidisation) N=-3 O=-2 Pb=0 (Pb have decreased in its oxidation state from +18 to 0 so it is considered as reduction)

[@K3707H]

+Akshya piano Playlist official We know that the polyatomic ion NO3 has a charge of -1, and since there are two of it per side: Mn + Pb(NO3)2 --> Mn(NO3)2 +Pb has oxidation numbers: 0 +2 -2 +2 -2 0 Mn is reduced 2 e- Pb is oxidized 2 e-

[@JT22347]

@K3707H other way around for the reduced and oxidized and remember OILRIG

[@anibharath1967]

thanks for doing this man, i love science and your videos help me a lot with my AP chem quizzes. keep doing what you're doing!

[@alel9191]

thank you. it helps. I didn't understand my instructor when she explained in the class. but you made it so easy. you are awesome man

[@marjanbonyadi3118]

I wish I saw this video before handing in my report. Thank you for making this kind of helpful videos ;).

[@dietcthulhu2533]

thanks for carrying me through ap chem

[@angelinemendoza2305]

I love you so much. I feel like a genius now!

[@divacutegirl9999]

i have a chem exam tomorrow! this helped me alot!!!!!! thanks

[@Uforiik]

so helpful! you are better than my teacher at school

[@Filipinogenetics]

First actual helpful video I've found! Thx a lot for making this!

[@doreenbaraka6478]

soooooooooooooooooooooooooooooooooooooo helpful!!!:) thanx. You explain a lot of biology and chemistry better than my teachers. Keep posting I am so greatful. I totally understand particularly the oxidation numbers

[@santiagocortes7964]

thanks to you I entered university and I hope that with your help I can get out of it

[@iCantMakeMovies]

I'm not sure if anyone caught this yet, but the oxidation of magnesium with HCl to afford magnesium chloride and hydrogen is improperly balanced. There should not be a coefficient in front of gaseous hydrogen on the product side.

[@MsHani17]

I noticed that too.

[@periodt1117]

Ong...you are a LIFESAVER GOD BLESS YOU💜💜💜

[@Zenyx]

For those who don’t know Sin Opposite Hypotenuse Cosine Adjacent Hypotenuse Tangent Opposite Adjacent

[@mprickles]

Oh man, Thank you! This has come at the right time! Your videos are great!

[@nageswararaolingineni737]

Massive help ..! I'm so confident that I'm going to crack my exam.. :) Thank you so much

[@wormyqueen]

It's man crush Monday so Mr.Anderson, you are chemistry hunk. Thanks for helping me though gen chem 2.

[@youssefelaziz6101]

Thanks for your excellent and professional work of teaching Chemistry via Skye. I have two remarks in this lesson is that you forgot to emphasise that the half reactions of redox involved equilibrium. You wrote the half equations of redox as if they were one-way reactions. Rather then reversible. This simple mistake can make the whole topic much more difficult to understand than is necessary. The second remark that at 8.03min the chemical equation is not balanced. Please take intention to that All the best for you Dr Youssef El Aziz

[@devnayak8171]

kya baat hai MR. Anderson...@@@

[@mynameisggn]

Maaan my test was this morning !! If only this was up earlier

[@chemistry_net7479]

Thank you for this video regarding redox reactions

[@aneeshbhamidipati8696]

Mn + Pb(NO3)2 → Mn(NO3)2 + Pb Oxidation Numbers 0 +2 (-1)2 +2 (-1)2 0 Mn: oxidation number increased from 0 to 2 (it became more positive), which means that it lost two electrons. Loosing electrons means oxidation. Therefore, Mn is oxidized. Pb: oxidation number reduced from 2 to 0 (it became more negative), which means it gained two electrons. Gaining electrons means reduction. Therefore, Pb is reduced. Half reactions are as follows: Oxidation reaction: Mn → Mn(NO3)2 + 2e- Reduction reaction: Pb(NO3)2 + 2e- → Pb

[@Melissa.3315]

Thank you thank you thank you!!!

[@theanadine]

Thank you so much! I can now answer my homework

[@missmadie3]

Great instruction, two thumbs up

[@demirodriquez3501]

Such a helpful video to refer to 🙏

[@Aussiepingpong]

This was very helpful. Thanks!

[@kartechnology7591]

Bro! You Saved Me...Your Awesome!!

[@sharmakdeep]

@7:00- the equation is not balanced. Should be H2 instead of 2H2 on the right side.

[@rayhanali7414]

How does the sulfur in sulphate have a +6 charge? Please could you explain.

[@yadavshashankkumar]

sir u r really awesome , u made me understood

[@nimashparana1788]

Thanks mate! Helped so much

[@serinitytinsleigh9749]

Exactly what I needed! Thanks!

[@maidulsifat3410]

that was really helpful! keep it up!

[@skeche]

For those confused with Pb(NO3)2.It is suppose to pre known knowledge that NO3 = -1 because HNO3 exists. H=+1 so NO3 = -1. So NO3x2 = -1x2 = -2, so Pb must be +2 for the neutral molecule to equal 0.

[@thefinal__sage5696]

PEACE BRUDDA SAVED MY LIFE OUR TEACHERS EXPLAINING IS VERY CONFUSING

[@MSKDoes]

So true Mahmoud!! LOL We have the same teacher !!

[@nada1357]

6:18 why does S have a charge of +6?? How r we suppose to know when the ion have a charge of 2-??? What is happening omg help...

[@dl1599]

Still a big fan of your videos. They help me understand so much better! Thank you! :)

[@talallouche1714]

you are awesome! please keep making these videos, it helps so much even when I think something is impossible once you show me how to do it becomes the easiest simplest of things. by the way I always wanted to make videos like that but I just haven't mastered chemistry quite yet. thanks again. you are awesome.

[@HelloSpyMyLie]

You are so fucking cool Mr. Bozeman. I wonder where you went to school. I wanna be like you when I grow up.

[@honlamwan]

At 1:00 , you have the Gaining and Losing pointed at the Oxidation numbers on the reduction side and the oxidation side respectively, that might be confusing since oxidation is an increase of oxidation number, while reduction is a decrease of oxidation number..

[@janardantoppo5764]

Thanks Sir ap bahut acha samjhate hain sab samajh me as gaya.

[@readmails3033]

"Thanks Sir. You have explained really well. I have finally understood everything." in hindi.

[@torque8998]

THANK YOU! You're an absolute ANGEL!! 😁÷D

[@mezoairable]

a7la ms sammah best teacher ever gr.9

[@kavyamorya1258]

Thank u. Pb(No3)2 +2(-1)×2 So oxidation state of Pb is +2 Pb ion gains 2e- and become get reduced to element Pb. Mn. 0 Mn lose 2e- and get oxidized to Mn(+2)ion .

[@duxbellorum2772]

Great video.

[@dianasilva6470]

You are just amaziiiinnnng!!!! Thanks for this lesson... just great!

[@MunifTheGreat]

I guess NO3 are spectator ions so they can be omitted from the equation.for the meanwhile So the oxidation # of Mn = 0, Pb = +2, Mn = +2, Pb = 0. Then, There is the oxidation of manganese: Mn --> Mn 2+ + 2e Reduction of Lead : Pb2+ + 2e --> Pb I don't know if i'm right though......

[@OR65222]

looks are dangerous, knowledge is lethal, you are a force to be reckoned with. (I'm sure he doesn't read all his comments so its cool, he will never know I wrote this)

[@TheEmancipator1]

Hi

[@rjravaz]

Your good looking!

[@TheSinnathamby]

rjravaz you are

[@zahraamini2722]

all of your videos were great, but unfortunatly I didnt understand this one yet

[@Oopsie223]

Great instruction. If you have been watching crash course you will notice that this is much more helpful. Sorry Hank!

[@theprinterlady]

Hank can't be beat for giving really quick overviews - but his is not intended as an indepth study. Mr. Anderson is wonderful for the more indepth look... but if I need just a fast reminder of an entire concept, I turn to Hank.

[@jesuisbelle122]

The Mn has been oxidized (Mn 0 a Mn +2 plus 2 electrons) The Pb has been reduced (Pb +2 plus 2 electrons a Pb 0) Are you going to give us the right answer? Thanks

[@malimaliimash2089]

thank you sooooo much!! this was soo helpful!!

[@Nick-pk9xg]

Nitpicky note (not that it really matters), but before you introduced rule #3 Oxygen is -2 (peroxs. -1) etc..., while it was faded out, it read "Oxygen is +2..." rather than -2.

[@jorge081790]

Thank you. This was very helpful. :)

[@angelawilliams1223]

This was a tricky one since the redox reaction is with 2 transition metal and compound. Here it goes. You don't assign an oxidation number for a polyatomic ion as a whole; it just has the ion charge. You must break down the polyatomic ions into individual atoms for its oxidation state. Since we don't have an oxidation rule for transition metals, we must solve for N as part of a polyatomic ion of NO3 - : N + (O x 3) = -1 O = (-2 x 3) = -6, thus, N + (-6) = -1 N = +5 The sum of the Oxidation Numbers for the compound is 0 since it's a neutral compound. Now, since there are 2 (NO3), Pb + (N x 2) + (O x 2)= 0 N = (+5 x 2) = +10 O = (-6 x 2) = -12 Since Pb + N + O = 0, then Pb + (+10) + (-12) = 0, thus Pb = +2 The oxidation number for each element: Pb = +2 N = +5 O = -2

[@rebinem2584]

Best explanation great

[@anonymoususer3473]

Mn + Pb(NO3)2 --> Mn(NO3)2 + Pb Oxidation numbers : Mn=0 Pb=+2 (NO3)2=-1 --> Mn=+2 (NO3)2 Pb=0 Mn gets oxidised (loses electrons to be positive) Pb gets reduced (gains electrons to be a free element) Half equations: Mn --> Mn+2(NO3)2 + 2e Pb(NO3)2 + 2e --> Pb

[@jambogradkowski3358]

Electrons are negatively charged, (each -1). Gaining electrons results in a reduction of the charge meaning it is more negative or reduced, (though there must be a deeper explanation than this). It might be helpful when understanding that something is oxidised when it loses electrons in a reaction. An oxidising agent attracts electrons strongly. so when something is oxidised the electrons are lost (attracted) to the oxidising agent.

[@Xx1CALUM1xX]

BRILLIANT

[@felco1547]

Can you explain why the gaining half of the reaction is named reduction and if the oxidation part has anything to do with oxygen as this what often confuses me. How are you supposed to know the oxidation numbers of one the elements in a compound in the first place...? Thanks

[@davidm3210]

That's a good one.

[@nicolasdelaeter4124]

thank you so much! I finally get it!

[@wesmjr]

At 8:43, you make the equation "2HCL(aq) + 2e- -> 2H2(g)" and I understand that the chlorine goes with the magnesium to form a MgCl, but where do you get the 2 extra hydrogenatoms? And because there are now 4 H atoms, doesn't that mean that the total charge had to be -4?

[@roiannebenjamin4128]

Thanks this was very helpful. One question though. Can you explain why we seem to just be making up the oxidation numbers for some of the elements. I learned that the oxidation number for sulfur is -2, but your showing it as +4 in the SO3 problem. Also please give the final answer for the practice problem. I think I have it right, but I'd like to be sure. Thanks.

[@BBoysAndTrickers]

Hey is the oxidizing agent the anion that is added to something? and reducing agent the anion that leaves the cation?

[@jambogradkowski3358]

Good spot, I think you are right.