Wayne Breslyn

Wayne Breslyn

Dr. B is chemist and learning scientist who enjoys creating videos to help students with chemistry and other science topics. He has taught science for over twenty years in the U.S. and internationally. He holds a Ph.D. in Curriculum & Instruction from the University of Maryland where he works on research projects investigating how people learn science.

To become a channel member:
kzread.info/dron/aUF73YX-uQTGwDB20I3n3g.htmljoin

Read his recent research article in the Royal Society of Chemistry’s Chem. Educ. Res. & Practice journal at pubs.rsc.org/en/content/articlehtml/2020/rp/c9rp00145j .

You can find more help with chemistry at www.Breslyn.org .

Paper Pinhole Glasses

Paper Pinhole Glasses

Convert Moles Ne to Atoms

Convert Moles Ne to Atoms

Convert 570mmHg to atm.

Convert 570mmHg to atm.

Convert Moles He to Atoms

Convert Moles He to Atoms

Пікірлер

  • @felipebergpetry8538
    @felipebergpetry85385 сағат бұрын

    muito obrigado, ajudou d+

  • @faroukmerouani5902
    @faroukmerouani59028 сағат бұрын

    will the NH3 mostly go to vapour phase? is this why its odour is strong?

  • @ZoeZ.U.
    @ZoeZ.U.9 сағат бұрын

    What I'm confused about is that the iodine gains 1 extra valance electron making it have 8 total valance electrons. So how is it still able to bond with the oxygen when it has no more binding electrons

  • @ZoeZ.U.
    @ZoeZ.U.9 сағат бұрын

    Im doing chem 20 rn, and im confused. I didn't know we could just move electrons as we please. Cause isnt the central oxygen forming 3 bonds now???

  • @fierce_phoenix
    @fierce_phoenix13 сағат бұрын

    My professor spent over an hour explaining this and similar concepts but I understand the concept from your 2 minutes video. Thank you.

  • @sudhakarb8401
    @sudhakarb840117 сағат бұрын

    Hii sir tqu for teching sir iam 10th class very super teching and clarity inthis balancings sir

  • @LHC15
    @LHC1522 сағат бұрын

    碳+氧气(充足) -燃烧→ 二氧化碳 C O₂ CO₂

  • @LHC15
    @LHC1522 сағат бұрын

    碳+氧气(不足) -燃烧→ 一氧化碳 C O₂ CO

  • @PhomoloRambau
    @PhomoloRambau22 сағат бұрын

    Regarding ion even if our compound is not does not have a charge but it is one of the diatoms do we say its an ion ,I am referring to the question that you were explain when I check the copper sulphate has no charge but we equated sulphate to its ionic charge of -2 ,so want to know if is it always that case or there is an excerption

  • @PLZ-cd9cu
    @PLZ-cd9cu23 сағат бұрын

    is there any other way to identify polar or nonpolar besides the electronegativity subtraction comparison?

  • @wbreslyn
    @wbreslyn16 сағат бұрын

    Good question! Molecular geometry and symmetry can help sometimes. And the presence of functional groups (like hydroxyl groups in alcohols) is helpful. An I suppose you could test it experimentally as well.

  • @mariaarellano8563
    @mariaarellano8563Күн бұрын

    Thank you Dr. B. What an awesome video :)

  • @sanjaygore2107
    @sanjaygore2107Күн бұрын

    Respected sir Nice .

  • @santalalshrestha9188
    @santalalshrestha9188Күн бұрын

    Epic thanks say the formula to remember that ammonium = (NH4) 😢😢😢

  • @DJake1234
    @DJake1234Күн бұрын

    great video. Thank you so much!!!

  • @mateusfs
    @mateusfsКүн бұрын

    awesome

  • @Chigga-wigga
    @Chigga-wiggaКүн бұрын

    Hu

  • @allenpark5959
    @allenpark5959Күн бұрын

    This video was actually a lifesaver! Thank you Mr. Breslyn!

  • @wbreslyn
    @wbreslynКүн бұрын

    You are most welcome! This redox playlist might be useful as well: kzread.info/head/PLZR1BGWBaZ1zRyFkJBAQo3kV1S5G2lohA

  • @aa-zu4ct
    @aa-zu4ctКүн бұрын

    Why does your voice sound like AI even though its 3 years old?

  • @JustNeutral
    @JustNeutralКүн бұрын

    thank you so, so much oh god lol

  • @58digit12
    @58digit12Күн бұрын

    This helpped a lot with school thanks 😊

  • @EricWu-SHUAIGE
    @EricWu-SHUAIGEКүн бұрын

    this really save my life or i gonna be failed in chem for 100 per

  • @RiazUddin-mc3gc
    @RiazUddin-mc3gcКүн бұрын

    Very helpful

  • @saiko9704
    @saiko9704Күн бұрын

    thank you sm!!!!

  • @krishnadaspkrishna2019
    @krishnadaspkrishna2019Күн бұрын

    😢 what are you doing

  • @robloxo17902
    @robloxo17902Күн бұрын

    Formula of Sodium Acetate: C2H3NaO2

  • @dragongamerz6410
    @dragongamerz6410Күн бұрын

    i got these answers : sodium oxide=NA2O aluminium nitrate=(NO3)3AL magnesium oxide=MgO CALcium sulfate/sulphate=CaSO4 calcium nitride=Ca3N2 sodium phosphate=Na3PO4 tysm it relly helped me in my grade 8 1st terminal exams:)

  • @itsnot_ayush
    @itsnot_ayush2 күн бұрын

    So sir this eq is already balanced ?

  • @javeedaminnaik1665
    @javeedaminnaik16652 күн бұрын

    It helps me alot thank you