Oxidation and Reduction Reactions (Redox Reactions), Oxidation Numbers, Periodic Trends

In this past live tutoring session I focused on Oxidation and Reduction Reactions, Oxidation Numbers and Periodic trends. Redox Reactions finally can be simple and quick to figure out with this Chemistry tutorial, Oxidation numbers are explained and you can be at ease ready for your Chemistry exam! Learn how to remember the periodic trends such as ion radius, atomic radii, ionization energy, electron affinity and electronegativity!
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[@rebeccaaxtman7712]

Oxidation starts at 31:33

[@beyoncekasapira8141]

ugh thank you so much! was not about to watch the whole thing!!

[@priscillanarvaez8890]

i’m watching this video in 2020 and she says “share this video so we can get to 10k” fast forward 3 years later she has 134k followers👏These videos have helped me so much thank you!

[@jennifercarmona9788]

243K update in 2021!!!!

[@saeshamonet]

Wow! Look how far you’ve come. You did 8 hrs straight?! People like you are very special. Go professor! Subscribed. Thank you!

[@melissamaribel]

Thank you! I didn't do 8 hours straight, but I did a total of 8 hours split into 4 days. Happy you like the channel 😊

[@beyoncekasapira8141]

@@melissamaribel wow that's even better!!

[@vanessasoto853]

SO SO HELPFUL! WHY CAN'T EVERYONE TEACH LIKE THIS? Thank you Melissa. You are truly special.

[@amberlanding5114]

It is now 2024 and it's crazy how a video from 6 or 7 years ago is saving me right now! Thank you for making these chemistry concepts easy to understand!

[@madein198t]

Same! My Chemistry professor is pretty awesome, but Melissa’s visuals take my understanding to another level.

[@nishas7574]

im going to cry i do not know what I would do without you thank you so sososososo much

[@kelsilofton7960]

I have been studying for my final exam for the past 4 days, and I just want to say that your videos are helping me understand the concepts I could not get for months. I wish I would have found your channel sooner!! THANK YOU!!!!

[@wibibscoco9844]

Thank u so much!! I used this video as a revision before the start of term 3

[@elizabethchappelear2478]

You have saved my appreciation for chemistry. I was starting to despise it. Thank you!!

[@shannontidwell7723]

Hi Melissa, Once again I am struggling to focus on my chemistry because I don't understand with the methods they are using to teach us. Thank you for breaking down the basics for me. This will be the reason I pass my Chemistry class for sure :) Yay!

[@sammituso6152]

THIS is so helpful. Thankyou for making this so much easier to understand! I appreciate you!!

[@melissamaribel]

Aww thank you Sammi, it always feels great to be appreciated 😊

[@nishishukla9452]

It is helpful during lockdown. I am happy to study from this channel

[@cuckoobeats]

Woah, this video had exactly where my doubts were Our chem sir took two weeks to explain just oxidation and somewhere I just couldn't help myself and then found your video! Thank you so much

[@rob2476]

You are the best!! Almost went nuts trying to fgure this one out but, thank goodness you were born halleluuujaaah 🙏🏻❤️ Wouldn’t know how I’d get through Chem without you!

[@ikponmwosanowamgbe4267]

Thanks Melissa. Your tutorial helped me understood redox reaction. Much appreciated.

[@samanthaadams1921]

hey melissa, first off THANK YOU for your channel. It is so much easier to follow. Is there a video you did on writing oxidation half-reaction, etc. and also how to figure out how many electrons are transferred? I am getting so confused on this lesson. Thanks in advance!

[@greatorg9498]

thank you so much for your dedication and time over the years to help student to learn chemistry! is really wonderful to hear you and see you explain so well everything!

[@priscillalk5324]

thanks for the lesson Melissa 😊 you make chemistry easy to understand and fun😁

[@stuntsaki]

Halllo!!! I was wondering if you could do a video on balancing redox equations? I know you did a live one but it'd be super cool if you could focus on that specifically. Please and thank you!! Ive tbh been learning from you my entire chemistry college courses.

[@jacobgriner9569]

not all heroes wear capes

[@albaniamusic2323]

Do you have videos on .... -how to apply half life to problems -how to write a balanced nuclear equation -how to balance equations by oxidization number -How to balance reactions by "half reaction" ?

[@airazelbellen9282]

In increasing electronegativity is noble gas will be the last? Thank you for your answer

[@Mellybeans0919]

Amazing video. TY!

[@lorenadelpozo99]

You’re always a life saver!!!

[@liahbegino4921]

Maraming Salamat po!! This is really helpful!!

[@Khutso1279]

Melissa Maribel, thank you so much for making these videos. My chemistry marks are improving so far

[@ayebeakwapong4544]

I want you to teach on acid, bases and salt as a whole topic. Plus i really enjoyed your lessons thumbs up!

[@aasiyayaseen1703]

Hi Melissa, This video really helped. Can you please make a video on half equations and galvanic cells? Thank you so much!

[@melissamaribel]

You're very welcome! And yes that is definitely on the list of videos I want to make for this channel. For now I do recommend this other video from a different youtuber kzbin.info/www/bejne/bZOWZYuPnKZ3oq8

[@science-y9209]

hey melissa , you know what I fell in love when I saw you refering to tyler dewitt, my favourite you tuber .yeah he's great and so that you.

[@emilyquiroga8745]

You’re amazing thank you so much 🥴

[@krishnaswamy6684]

Thank you so much for these videos. I really can’t afford personal tutoring. I want to let you know something. When you are showing the slides, they are very small, hard to read. Please can you make it full screen? Thanks in advance!

[@mrpeanutbutter6094]

I love her facial expression

[@kerryannporchia1758]

Thank you so much

[@Veronichong]

Hi Melissa, at 52:40, when you said that Ca has an oxidation number of 0, how did you know since the equation did not specify that it was in a solid state? Can we assume it is in a solid state?

[@shauryarawat4074]

Yes

[@preetiv8851]

thank you

[@makatangmanunulat2259]

Can you make a video about redox reaction of photosynthesis

[@LS-cu8kl]

Super helpful!

[@melissamaribel]

Happy to hear 😊

[@Veronichong]

Hi Melissa, for the last question, why didn't we consider whether hydrogen was reduced or oxidized?

[@Veronichong]

Oh so exactly like the oxygen?

[@shelliesharpe4904]

Hi Melissa!!:):) You know, I was ok confident UNTIL THIS OXID/RED STUFF!! UGGHHHH I'm good with figuring out the oxidation states, I'm just confused on how to write the equation that shows it. Like he will say write the equation for the species that has gained electrons. So 2Al2O3----4Al+3O2....Is Al oxidation number +4 and O oxidation number -4? And is Al being oxidized and O being reduced? is that part correct? THANK YOU!!:):):)

[@jessicajenkins1522]

I know this is an old video but I loveee all of your videos and they've helped me so much. One thing I'm really struggling with is nomenclature and knowing the products of a chemical reaction (also with writing them by knowing the nomenclature). We have to know all of the steps for my class, figure out the type of reaction, figure out the products and write them correctly using nomenclature, balance the equation, write the ionic and then the net ionic. If you could do a step by step of this it would be soooo helpful! or if you already have one could you link it (if you see this)! Thanks so much!

[@PrttyMxn]

She has flash cards for the nomenclature.

[@jhanzaibwahla7597]

Thanks

[@jhanzaibwahla7597]

Beauty with knowledge

[@julietoddy1362]

Can you explain to me why on the oxidation samples at approx 39:00, why with the CO2 the O2 has a -2 charge? Is it not a diatomic atom? I thought O2 had a 0 charge? Thank you!

[@melissamaribel]

O2 by itself is a diatomic atom but once we see this in CO2 it is not a diatomic atom. We now individually look at each element so it's not O2 that we are looking at but just oxygen has an oxidation number of 2.

[@thewizardsofthezoo5376]

Hi Melissa, congrats on the success of your channel it is ver interesting indeed. I was trying to figure out if we had examples of redox cycles in nature? For instance I can't help thinking of the huge output of electricity that the sea must yield as it oxidises metals and carbon in the underground? But from there I am stuck, is there a correspondent reduction we can think of, are we going to need a base (like oil??) to antagonise sea water for a reverse process? I am stuck unless that electricity powers the sun, that powers life that retransforms - soil ? - into (reduced?) elements to restart the cycle?

[@thewizardsofthezoo5376]

Addon: Plants use CO2 and light and convert it into O2 and glucose, the opposite at night, but what if the bigger cycle did the same thing, the tides being the wash between acid and base exactly like a real redox generator?

[@impermanence5206]

oxidation and reduction reaction starts at 43.07

[@fificici8144]

@Ryan Why does reduction not mean the same as "reducing", ie giving up electrons?

[@Mracle325i]

Because electrons are negative, so to become MORE negative is to gain MORE electons.

[@YogendraKumar-on5ru]

respect from India 😍⚡⚡

[@ciciv4924]

I am doing horrible on all my quizzes. They are only 15min. These videos really help me. I have an upcoming exam that really depends on getting an as a last chance.

[@melissamaribel]

If you have any questions let me know! Let's make sure you pass Chemistry 🤓

[@ciciv4924]

Thank you.

[@nathanamare2237]

I am watching this video in 2020.And I have still little question for you,I didn't understand how to identify the oxidizing and reducing agent in some chemical equation please help me🙏🙏🙏

[@abrajrashid9856]

Video on moles please...

[@livelikeyoulovelife1]

so if it is a diatomic halogen such as Cl2 or I2 would it be -1 or 0?

[@shauryarawat4074]

0

[@freemannwaobiwe142]

thank you . all the way from Nigeria. love all your videos. please can you make a video on mole concept. can you direct me on a good physics teacher online?

[@danielatorresmalaga3601]

I wish you were my professor 🥺🥺🥺

[@doralatt8844]

26:00

[@scoovadia9452]

PLEASE CAN U DO SOME CONJUGATE ACID-BASE REACTIONS 😭

[@melissamaribel]

Will do

[@christyngephart1629]

Where is the 8 hour video?