Hess's Law Trick Question You Should Know

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  • Опубліковано 30 гру 2024

КОМЕНТАРІ • 98

  • @araven2266
    @araven2266 5 років тому +78

    I love that you take the time to create quality educational content with a creative twist!

  • @waleedashraf5863
    @waleedashraf5863 4 роки тому +8

    I swear to god this is way better than having to sit in front of a screen for three hours listening to a boring lecture, with a not so skilled lecturer that can't get the point across as well as you do! So thank you for making these videos and putting all that effort into them, they're short, simple, colorful, get straight to the point, and on top of all of that... your explanations are pretty clear as well. Thank god I came across this channel, I now know from where I'm gonna be studying chem. for the rest of this year!

  • @stanstantalent.5605
    @stanstantalent.5605 6 років тому +43

    OMG, I have a chemistry final tomorrow so any kind of help is appreciated. Thanks!

  • @latinaainlovee
    @latinaainlovee 2 роки тому +7

    Chemistry is so difficult and you teach it so that anyone is able to learn. You make it seem so much more simple and I love the creative editing it makes the videos so much more appealing and keeps me engaged. You saved my chemistry grade, thank you!!

  • @politicalsquid3025
    @politicalsquid3025 6 років тому +18

    Your explanations and methods of teaching are so clear I'm just annoyed I hadn't found your channel earlier. Thank you so much for the effort you put into teaching and helping out others!❤️❤️

    • @melissamaribel
      @melissamaribel  6 років тому +4

      I wish everyone could find my channel at the beginning of the semester too! Happy you like my teaching method and you are so welcome 💕

  • @niroos6819
    @niroos6819 6 років тому +21

    its a pleasure to watch your videos
    so easy to understand and purple is my fav

  • @thedukeofearl79
    @thedukeofearl79 6 років тому +5

    Probably the most succinct Hess's law video (pertaining to this type of question) out there. Gracias.

    • @melissamaribel
      @melissamaribel  6 років тому +2

      De nada 😊So glad you really liked the video!

  • @fatimaghulam8677
    @fatimaghulam8677 5 років тому +6

    God bless your soul. Your teaching is so simple and helpful!!

  • @jennyliu575
    @jennyliu575 4 роки тому +3

    the legend herself!!! you are so good. i thought i was super bad at chemistry, but you explain it so well!

  • @AllPawsInnProductions
    @AllPawsInnProductions Місяць тому

    I love your use of colors! Thank you!

  • @marisayvonne
    @marisayvonne 4 роки тому +1

    Thank you for making something seeming so complicated really understandable. So grateful for your channel!

  • @Reckless-Rin
    @Reckless-Rin Рік тому

    THESE VIDEOS ARE SO AMAZING😭 PLEASE CONTINUE MAKING THEMM 💗

  • @KennedyMalisawa-y3f
    @KennedyMalisawa-y3f Місяць тому

    You are the best
    You really make chemistry look simple 💯

  • @jumbojumbojumbojumbo
    @jumbojumbojumbojumbo 3 місяці тому

    Mam your teaching is brilliant, I could not thank you enough

  • @jihongrim5071
    @jihongrim5071 6 років тому +5

    love the color of this video! of course it was really helpful!

  • @stanhelton133
    @stanhelton133 5 років тому +7

    This really bothered me until I substituted a letter for each molecule. The subscripts must have overwhelmed me where I couldn’t figure out the math for problem.

  • @dharmasilansilan632
    @dharmasilansilan632 3 роки тому

    I couldn't understand this for the first time i saw the video but still i love the way you teach

  • @rishikashah5694
    @rishikashah5694 4 роки тому

    First video I've watched of you and what my teacher couldn't explain in 3 classes, you explained in 1 video! such a creative and easy way to solve them, tysm!

  • @lancegelman6243
    @lancegelman6243 3 роки тому

    Your videos help me do excellent on exams. Thanks!!

  • @Ethherr
    @Ethherr 2 роки тому +1

    Or you can divide the first and third equations by 2 and you'll get the enthalpy of formation of NH3, CH4 and HCN.
    Then you can use ΔΗ= Σ ΔΗf(products) - Σ ΔΗf(reactants), anyway great explanation and video!

  • @melanyleal4650
    @melanyleal4650 5 років тому +5

    Tomorrow is my final and you just saved my life, thank you

  • @devil_girl148
    @devil_girl148 4 роки тому +1

    👍👍👍 Thanks So much Dii

  • @kevindevaux4244
    @kevindevaux4244 6 років тому +1

    Thank you, ive been waiting for this

  • @happyworm351
    @happyworm351 Місяць тому

    At the end, where did you get the times 2 from for the fractions?

  • @biswajitmitra6842
    @biswajitmitra6842 4 роки тому +1

    Mam last equation i.e 3 will be multiply by -1/2 the heat chenge please check

  • @alotte_of_anton
    @alotte_of_anton Рік тому

    Super helpful, thank you!

  • @pinkribbons476
    @pinkribbons476 6 років тому +1

    What would you do with the 1/2 H2 on the reactants side in 2:45? I know you added the h2s on the products side but isn't there a remaining H2 on the reactants that must cancel out?

    • @melissamaribel
      @melissamaribel  6 років тому +3

      Opposite sides subtract so I would add the 3/2 H2 and 2 H2 together to get 3 1/2 H2 and then subtract the 1/2 H2 that was on the reactants side and this gives us the 3 H2 on the final answer.

  • @nothandozwane3079
    @nothandozwane3079 3 роки тому

    I wish i found this channel way earlier ! Thanks for all the help

  • @brittniep9219
    @brittniep9219 6 років тому +1

    Extremely helpful! The only thing I am stuck on is, if anyone has a recommendation, when we are not given the equations that will give us our goal equation... Do I just try to come up with ones??

    • @melissamaribel
      @melissamaribel  6 років тому

      Hey Britt, was there a specific question you were thinking of? You can also DM or tweet me the question @hellomelissam if that makes it easier.

  • @ElezedChirwa
    @ElezedChirwa 6 місяців тому

    Thanks madam 🎉🎉 you have really helped me

  • @kjkitz
    @kjkitz 5 років тому

    This is nice Melissa. It is difficult to show in 2-D how to flip, double, and halve a reaction.

  • @osvaldoramos3265
    @osvaldoramos3265 Рік тому

    Why did you place the H2 on the product side and not the reactant side.

  • @Valeria-uz2lb
    @Valeria-uz2lb 3 роки тому

    In 1:35 H2 is on the reactants for the last equation, why didn't you flip? (also tysm for this video!)

  • @nguyenmanh113
    @nguyenmanh113 4 роки тому

    why some time i need to do the combustion to find the enthalpy of formation, while this video need to do like above? to find the total enthalpy change

  • @kylenason
    @kylenason 3 роки тому

    I can’t get all my terms to cancel and I can’t reach the goal in a problem in my book. What do I do?

  • @ratanpriyakumari5135
    @ratanpriyakumari5135 4 роки тому +2

    i m from India....i love yr videos mam

  • @nobody4191
    @nobody4191 4 роки тому

    I don't know when to use H products- H reactants and energy to break bonds - energy to make bonds. Please help

  • @anisurrahman8928
    @anisurrahman8928 5 років тому +5

    I LOVE Y.....
    YOUR TEACHING STYLE...
    MY GAAD..

  • @gracebalzanelli6192
    @gracebalzanelli6192 3 роки тому

    Thank you so much I owe you my soul

  • @ciennamonroll
    @ciennamonroll 2 роки тому

    god, this is just so useful, thank u so much

  • @hariyashu69
    @hariyashu69 9 місяців тому

    super mam before my exam you taught very easy and convable method to my brain love you mam #indian

  • @amptelikeshotah
    @amptelikeshotah 2 роки тому

    Very helpful thanks alot

  • @siriusblack6337
    @siriusblack6337 4 роки тому

    Hi maam. I dont know why theres parenthesis g and s. I dont know what dat means

  • @climax7260
    @climax7260 3 роки тому

    Thank you!

  • @baky1061
    @baky1061 2 місяці тому

    What would happen if you the H2 did not cancel out properly?

  • @lauramesa7064
    @lauramesa7064 6 років тому

    ive been looking at different questions in which two elements in all four equations are the same, but when it comes to changing up the equations only one is required to change since we don't manipulate them if the element is in all equations. when I look at the answers to my homework though they show that the heat has changed for two equations not just one. I think i'm getting lost when it comes to having the same elements in all of the equations.

    • @melissamaribel
      @melissamaribel  6 років тому

      Hey Laura, feel free to tweet me the exact question and I am happy to explain it on my Live show this Sunday at 12PM Pacific Time. You can tweet me at @hellomelissam and use the hashtag #askmelissamaribel

    • @lauramesa7064
      @lauramesa7064 6 років тому +1

      my exam is Friday ! :((@@melissamaribel

    • @melissamaribel
      @melissamaribel  6 років тому

      Ok no worries, DM then on Instagram @hellomelissam it just helps to see the question.

    • @lauramesa7064
      @lauramesa7064 6 років тому

      I just did .. thanks so much@@melissamaribel

  • @himadrisahu4581
    @himadrisahu4581 Рік тому

    Thanks Miss ❤️🙏

  • @roa1437
    @roa1437 4 роки тому

    i need to pay you notebook the dot one where can i found it

  • @jeromebatiatik20atik14
    @jeromebatiatik20atik14 5 років тому

    Why you did not mutiply½ to delta h 45.9?

  • @rubabhasan8750
    @rubabhasan8750 Рік тому

    Hesses law is so amazing! From Hasnain Abbas Naqvi,Rubab Hasan’s son.

  • @medstressed
    @medstressed Рік тому

    Mygod! You're amazing.

  • @chakupalezaphiri4492
    @chakupalezaphiri4492 4 роки тому

    Life saver🤧💕

  • @melilag464
    @melilag464 5 років тому

    i can't figure out how you added the reactant and products:/

    • @JYDemir
      @JYDemir 5 років тому

      1:45 add everything on the left side of the arrow for the reactants
      add everything on the right side of the arrow for the products
      combine them to get the overall reaction

  • @uddhav1397
    @uddhav1397 9 місяців тому

    I Seen this video for neet exam in India 👍liked it
    Can you tell me to which grade student you teach this concept in your country?

  • @rishankrj1297
    @rishankrj1297 6 років тому

    What If the constituent equations are not given... How do I form the equations? Plz help me out

    • @melissamaribel
      @melissamaribel  6 років тому

      Do you have a specific question you are thinking of?

    • @rishankrj1297
      @rishankrj1297 6 років тому

      @@melissamaribel yeah.. Like calculate delta hf for benzene or methane. And the values for each element is also given.. But the equations are not given in the question. We have figure it out. Help me out with that plz

    • @GamingKing269
      @GamingKing269 6 років тому

      For my exams I am not given the constituent equations either

  • @lavendermage1442
    @lavendermage1442 6 років тому

    Could you by any chance teach me how to balance combustion chemical equations?

  • @mustafamuhammed4721
    @mustafamuhammed4721 6 років тому

    Thank u so much 💜💜

  • @markymark5723
    @markymark5723 5 років тому

    Thank you!!!!!

  • @anurag8862
    @anurag8862 4 роки тому

    Thanks mam.👍👍❤

  • @dailyvideosinhindi6075
    @dailyvideosinhindi6075 4 роки тому

    thanks Madam

  • @nnennaagidi
    @nnennaagidi 3 роки тому

    You are very aesthetic.nice!

  • @Pawsandchukles
    @Pawsandchukles 5 років тому

    Hello ,
    Mam your big fan .....
    Best of luck

  • @ahmadnoor2777
    @ahmadnoor2777 6 років тому

    Mam u r very useful.

  • @gamerx6543
    @gamerx6543 4 роки тому +1

    I am rutuja thanks mam ur best n perfect 🙂👍😀

  • @lehlohonolophadi6620
    @lehlohonolophadi6620 6 років тому +3

    Thank you, i am writing Chemistry in 2 hours time. (x)

  • @marioulrichb.a.5607
    @marioulrichb.a.5607 4 роки тому

    Ok, but how does food become joules?

  • @bhatzahid9204
    @bhatzahid9204 6 років тому +2

    Love from KASHMIR

  • @salmakazmi4995
    @salmakazmi4995 6 років тому +2

    sooooo aesthetic

  • @KellieJo93
    @KellieJo93 4 роки тому

    if you multiply 1/2 from 2HCN wouldn't that be 1HCN

  • @rayamoooooo685
    @rayamoooooo685 5 років тому

    thankz

  • @mahfuzahmmed9224
    @mahfuzahmmed9224 5 років тому

    Thanks mom....

  • @barba4960
    @barba4960 10 місяців тому

    Lab u po finally maka S sleep na ko🫡

  • @sameerkinakool1669
    @sameerkinakool1669 5 років тому +1

    Not bad

  • @abrokatec
    @abrokatec 4 роки тому

    how is this a trick question

  • @leah1847
    @leah1847 5 років тому

    Oml it makes sense

  • @etheranlegend8000
    @etheranlegend8000 Рік тому

    There’s no trick to this trick question tho??? It’s literally straightforward hess with simple manipulation of the given equations