Soluble and Insoluble Compounds Chart - Solubility Rules Table - List of Salts & Substances

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  • เผยแพร่เมื่อ 28 ก.ย. 2024
  • This chemistry video tutorial focuses the difference between soluble and insoluble compounds. It contains a table or chart of the solubility rules and it provides a list of salts and substances - some of which are soluble while others are insoluble. This video contains a worksheet of examples and problems toward the end of the video including answers and solutions.
    Stoichiometry Practice Test:
    • How To Solve Stoichiom...
    Solute, Solvent, & Solution:
    • Solute, Solvent, & Sol...
    Strong & Weak Electrolytes:
    • Identifying Strong Ele...
    Molarity Practice Problems:
    • Molarity Practice Prob...
    Ion Concentration In Solutions:
    • Ion Concentration in S...
    Dilution Problems:
    • Dilution Problems, Che...
    ___________________________________
    Types of Chemical Reactions:
    • Types of Chemical Reac...
    Solubility Rules:
    • Solubility Rules
    Predicting The Products of Reactions:
    • Predicting The Product...
    Activity Series of Metals:
    • Activity Series of Met...
    Will This Reaction Occur?
    • Chemistry - Will The R...
    Predicting Products of SR Reactions:
    • Predicting Products of...
    ___________________________________
    Double Replacement Reactions:
    • Introduction to Double...
    Net Ionic Equations:
    • Precipitation Reaction...
    Writing Chemical Equations From Words:
    • How To Write Chemical ...
    Solution Stoichiometry:
    • Solution Stoichiometry...
    Molarity & Dilution Problems:
    • Molarity Dilution Prob...
    Acid Base Neutralization Reactions:
    • Acid Base Neutralizati...
    ____________________________________
    Acid Base Titration Problems:
    • Acid Base Titration Pr...
    Mixture Problems:
    • Mixture Problems
    Calculating Oxidation Numbers:
    • How To Calculate Oxida...
    Oxidation and Reduction Reactions:
    • Oxidation and Reductio...
    Balancing Redox Reactions:
    • Half Reaction Method, ...
    Ideal Gas Law Problems:
    • Ideal Gas Law Practice...
    ___________________________________
    Final Exams and Video Playlists:
    www.video-tuto...
    Full-Length Videos and Worksheets:
    / collections

ความคิดเห็น • 223

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  8 หลายเดือนก่อน

    Final Exams and Video Playlists: www.video-tutor.net/

  • @redoktobarwarthundervids8820
    @redoktobarwarthundervids8820 2 ปีที่แล้ว +5

    Chemistry is the worst. So inconsistent... exceptions everywhere... as if the rules are not really worked out well

  • @Blaqw00D
    @Blaqw00D 3 ปีที่แล้ว +65

    you can always count on this guy to teach you something if you dont understand it after class

  • @bellalove8107
    @bellalove8107 3 ปีที่แล้ว +43

    In twelve minutes you have taught me more than my teacher has in almost a year. Thank you, you just saved my grade:)

    • @Aurora_clipz
      @Aurora_clipz ปีที่แล้ว

      where your teacher at, show him or her this video Lol

  • @princeatsrim3159
    @princeatsrim3159 4 ปีที่แล้ว +8

    This video has been very comprehensive. A big thanks to the tutor.

  • @yousefahmedali5745
    @yousefahmedali5745 3 ปีที่แล้ว +54

    whenever i forget the solubility rules i just rewatch this vid

  • @thucydidescallas525
    @thucydidescallas525 4 ปีที่แล้ว +72

    I love his accent.

    • @Niitonnn
      @Niitonnn 3 ปีที่แล้ว +1

      @zaid abuhashish What? There's a U.S. American accent which is what he or she is referring to. White people here talk like that depending on the city and state. There's an Indian accent, U.S. American accent, Canadian American accent, Japanese accent, really there's an accent anywhere you go. Just because it's "normal" doesn't NOT make it an accent lmao.

    • @nebulai9587
      @nebulai9587 3 ปีที่แล้ว

      Didn't ask now stop

    • @thucydidescallas525
      @thucydidescallas525 3 ปีที่แล้ว +1

      @@nebulai9587 mind your business

    • @Niitonnn
      @Niitonnn 3 ปีที่แล้ว

      @zaid abuhashish Um, you’re the one who apologized. Not me. I have no idea what you’re talking about. I don’t know where you’re from either. Don’t lump me in with everyone else, I’m Puerto Rican. We need healing too, but you don’t see me bitching and complaining. Yeah, some white people are greedy and only focused on money, but at the same time there are good white people. You probably don’t even know any.

    • @Niitonnn
      @Niitonnn 3 ปีที่แล้ว +1

      @zaid abuhashish Also... I don’t know how you went from accents to saying you hate white people. All i did was inform you that ALL people have accents and dialects and you go on to say you hate white people and will never heal... when i’m not even white

  • @sid9865
    @sid9865 2 ปีที่แล้ว +5

    Sir just fantastic this goes into mind once I watched the video,🤩🤩🤩Saved my lots of time 👍Thank u so much sir🙏🙏🙏🙏from India 🇮🇳

  • @fc2p
    @fc2p 6 ปีที่แล้ว +302

    It's way too much to memorize. Not happenin for me bro..thanks anyway.

    • @dangerdan2592
      @dangerdan2592 6 ปีที่แล้ว +28

      It is difficult. I feel like you just have to remember the Always soluble ones first as he said. And then do a bunch of practice problems.

    • @adrianabautista8931
      @adrianabautista8931 5 ปีที่แล้ว +18

      it be like that sometimes

    • @jaredshapiro7109
      @jaredshapiro7109 5 ปีที่แล้ว +1

      It’s all on table f of the reference table

    • @yosefbenyah8732
      @yosefbenyah8732 5 ปีที่แล้ว +14

      😂😂😂 yeah chemistry is against us. We have to prove those fuckin teachers wrong

    • @divinest
      @divinest 5 ปีที่แล้ว

      lmao

  • @5kunk157h35h17
    @5kunk157h35h17 3 ปีที่แล้ว +4

    Thanks for the video! Will rewatch a few times to make sure it sticks!

  • @theedanna21
    @theedanna21 2 หลายเดือนก่อน

    thank you!!! ive literally been avoiding my anki cards on this topic until now!

  • @StudySajeeha
    @StudySajeeha ปีที่แล้ว

    THANK YOU. I'm binging ur videos before my chemistry alevel exam. If only I had watched u to understand this at the beginning of the year. YOU ARE A GODSEND

  • @amansahu7260
    @amansahu7260 8 ปีที่แล้ว +22

    ur channel is awesome!! keep on this philanthropy😃

  • @rachaelaluko7291
    @rachaelaluko7291 6 ปีที่แล้ว +8

    Got everything right💪💪thank u so much, I now understand it.

  • @Emk315
    @Emk315 7 ปีที่แล้ว +113

    Here is how I remember solubility rules, NAG SAG (think of nagging people who sag their pants (: You nag them. N- nitrates, A-acetates(C2H302-), G- group 1 metals, S-Sulfates (SO4^-2), G- group 7 metals.
    Exceptions:PMS, P-Pb^+2, M- mercury, S-silver (Ag+)- The PMS are Never soluble with Sulfates and Group 7A metals. Also, the are insoluble with Group 2A alkaline metals and Sulfates.

  • @aaaa213a
    @aaaa213a 4 ปีที่แล้ว +8

    i hate this subject but i love u king

  • @mastisemastishktak5750
    @mastisemastishktak5750 ปีที่แล้ว +1

    thank you very much, much needed video for PRECIPITATION REACTIONS

  • @Kris-fl7fq
    @Kris-fl7fq 3 ปีที่แล้ว +2

    Thank you so much for posting this!

  • @sonalibansal9288
    @sonalibansal9288 2 ปีที่แล้ว +4

    I have my finals paper in half an hour, and I finally understood the concept.
    Thank you soo much!!

  • @maerincy1836
    @maerincy1836 10 หลายเดือนก่อน

    Thank you so much, I think I can get half or even more than half of the questions related to this in my midterm examination

  • @yesses888
    @yesses888 3 ปีที่แล้ว +2

    Omgg this helped so much! thank you

  • @KevinGarcia-gl8gb
    @KevinGarcia-gl8gb 5 ปีที่แล้ว +3

    Thank you very much just what I needed.

  • @michaelsilva5740
    @michaelsilva5740 ปีที่แล้ว

    You are a saving grace my man

  • @YoArnes23
    @YoArnes23 3 ปีที่แล้ว +1

    Thanks man.

  • @Troy_1203
    @Troy_1203 2 ปีที่แล้ว

    YOU ARE HELPING A GREAT DEAL. KINDLY CHECK 11:47 CaS IS IT NOT (aq) and not (s)

  • @ryanlee4771
    @ryanlee4771 21 วันที่ผ่านมา

    I swear he teaches way better than my professor

  • @senabeyana6491
    @senabeyana6491 5 ปีที่แล้ว +2

    Thank u... ur a my go too

  • @kaliek3781
    @kaliek3781 2 ปีที่แล้ว +1

    You said all ions in the first column, but does that include Francium? Please, I need to know

  • @53jdrobinson
    @53jdrobinson 2 ปีที่แล้ว +1

    At the 9:35 mark you begin discussing calcium phosphate and you say that phosphates are generally soluble. Then at the 10:05 mark you say that phosphates are generally insoluble when discussing Aluminum phosphate. Is Phosphate generally soluble or generally insoluble?

    • @thebiladi6128
      @thebiladi6128 ปีที่แล้ว

      This is a year late but its generally insoluble. I think he just said its generally soluble by mistake because the answer he went through with was the opposite (generally insoluble)

  • @jamesedwardtagalan2147
    @jamesedwardtagalan2147 3 ปีที่แล้ว +1

    Thank you so much!

  • @syedsheraz8260
    @syedsheraz8260 6 ปีที่แล้ว +22

    Hi,
    I thought CaS is (aq) isn't Ca 2+ an exception for S2- compounds?

    • @salahuddinaw
      @salahuddinaw 5 ปีที่แล้ว +1

      Yes he is wrong.

    • @quadlui8220
      @quadlui8220 4 ปีที่แล้ว

      I don’t think so because all my other resources say it’s solid

    • @johnkifle2904
      @johnkifle2904 4 ปีที่แล้ว

      you right

    • @mustafabastug2403
      @mustafabastug2403 4 ปีที่แล้ว +2

      Absolutely, 2A group elements are exceptions of S2-

    • @davidbustillos7351
      @davidbustillos7351 4 ปีที่แล้ว +1

      I thought they were soluble. What would make it a solid? I thought Ca is and exception to S.

  • @braydenshrve7113
    @braydenshrve7113 3 หลายเดือนก่อน +1

    If yall need help with memorization here’s a weird but great trick. Make very weird and insane acronyms that you will never forget.and when I say weird make them into something you’ll never tell anyone else.youll never forget it

  • @batuhanpolat2902
    @batuhanpolat2902 4 ปีที่แล้ว +1

    Thank you sir, thank you very much

  • @absolutezero9874
    @absolutezero9874 4 ปีที่แล้ว

    LiF isn’t soluble in water because of the high lattice energy. Both Li+ and F- ions are very small, hence the charge density is very large. Enthalpy of hydration < lattice energy

  • @Musfiqur_anik
    @Musfiqur_anik 11 หลายเดือนก่อน

    Thanks dude.great work!

  • @nikitarajak5648
    @nikitarajak5648 7 ปีที่แล้ว +2

    awesome video and the voice is awesome 2

  • @petevenuti7355
    @petevenuti7355 ปีที่แล้ว

    Well that's for water, is there a formula, or at least rule of thumb for all solvents in general? Like a relationship between electronegativity & ionic character of the ion relative to the polarity/ diletric constant of solvent?
    Seems like there should be..

  • @MrDawnnix
    @MrDawnnix 7 ปีที่แล้ว +3

    thanks man!!!

  • @alaaraed2526
    @alaaraed2526 5 ปีที่แล้ว +3

    Thanks❤❤

  • @venus5760
    @venus5760 10 หลายเดือนก่อน +1

    11:42, CaS is slightly soluble, not insoluble

  • @ClareMaary
    @ClareMaary 4 ปีที่แล้ว +2

    This helped so much!! Thankyou!

  • @carolynconnelly3395
    @carolynconnelly3395 2 ปีที่แล้ว

    Thank you

  • @bengalifoodcooking4352
    @bengalifoodcooking4352 ปีที่แล้ว

    Amazing explanation ❣❣

  • @hasnatawan2269
    @hasnatawan2269 2 ปีที่แล้ว +1

    is oh- soluble with li+

  • @pitat886
    @pitat886 7 ปีที่แล้ว +1

    Great work

  • @hlubin04
    @hlubin04 7 ปีที่แล้ว +9

    I would of thought CaS was soluble ... doesn't S2- compound and OH- compound share the same rule when pairing ?

    • @rmhwtd8367
      @rmhwtd8367 7 ปีที่แล้ว +3

      i also think so

    • @vishwareddyakkati4737
      @vishwareddyakkati4737 5 ปีที่แล้ว

      no, the exceptions for s2- is li+ Na+ K+ and NH4+, not Ca,
      OH- has different solubility rules, which include all of the above and Sr2+ Ba2+ and many more group one elements

  • @IsThis-Love
    @IsThis-Love 11 หลายเดือนก่อน

    LiOH: Doesn't OH has an exception for group 1 metals so doesn't it supposed to be insoluable?

  • @tx5648
    @tx5648 3 ปีที่แล้ว

    have an awesome fantastic incredible amazing day

  • @user-ph9oy1fp3q
    @user-ph9oy1fp3q 6 ปีที่แล้ว +80

    do a face reveal

  • @peteralkhabout8920
    @peteralkhabout8920 4 ปีที่แล้ว

    what do you mean by soluble and insoluble

  • @JP-vj4es
    @JP-vj4es 4 ปีที่แล้ว +2

    how do you determine a compound is soluble or insoluble if this was ask, 45.0 g CaCl2 in 105 g of water at 5 Celsius?

  • @quarkscrew3037
    @quarkscrew3037 3 ปีที่แล้ว +1

    9:36 *insoluble

  • @fatimahabidogun38
    @fatimahabidogun38 6 ปีที่แล้ว +2

    Liked before watching cuz I know this man is getting ready to slay

  • @cherryblossoms4528
    @cherryblossoms4528 7 ปีที่แล้ว

    you have beautiful voice :)
    and thanks for the video. really helped me understand the solubility rules

  • @paarthsoni3509
    @paarthsoni3509 2 ปีที่แล้ว

    life saver

  • @daniedeklerk1914
    @daniedeklerk1914 4 ปีที่แล้ว

    Thanxs a million bro

  • @oskarkocsis7048
    @oskarkocsis7048 4 ปีที่แล้ว

    Ca3(PO4)2 soluble or insoluble

  • @vinnyma7512
    @vinnyma7512 7 ปีที่แล้ว

    BaCO3 is soluble, CO3 is usually insoluble, but Ba is an exception according to your chart.

    • @rmhwtd8367
      @rmhwtd8367 7 ปีที่แล้ว +1

      Ba is in the 2nd group not the first group ... so its not in exception

  • @ammuvijay1447
    @ammuvijay1447 3 ปีที่แล้ว

    is MnO4- is soluble with Ca2+?

  • @Rsmd1882
    @Rsmd1882 4 ปีที่แล้ว

    Thank you sir.......

  • @Kris-fl7fq
    @Kris-fl7fq 3 ปีที่แล้ว

    So....we only look at the first element to determine?

  • @louisdialled9148
    @louisdialled9148 ปีที่แล้ว

    What is the purpose of the 2 at the bottom of the mercury cation? (not the 2+ charge)

    • @slayyyy11
      @slayyyy11 10 หลายเดือนก่อน +1

      to balance them

  • @skylahenry8552
    @skylahenry8552 3 ปีที่แล้ว

    Please my brain is overloaded how do I remember this all

  • @baharosman1416
    @baharosman1416 4 ปีที่แล้ว

    Then why do we say polar are soluble in polars , If ionic compound is polar then why not every ionic compound dissolve in water , should I memorize the rules and apply it or know what is going on?!

  • @rdxviren4065
    @rdxviren4065 2 ปีที่แล้ว

    Somebody can suggest me that how can i improve my chemistry

  • @Shayankhan-vs9sc
    @Shayankhan-vs9sc 2 ปีที่แล้ว

    K+1 or Nh4 +2 which one is more soluble in water?

    • @anuragkumar228
      @anuragkumar228 ปีที่แล้ว

      Nh42+ because of H bonding and absence of H bonding in K+

  • @my7000thrandomaccount
    @my7000thrandomaccount ปีที่แล้ว

    bro just saved me from failing a final

  • @awkweird_panda
    @awkweird_panda 7 ปีที่แล้ว +1

    Nice and easy!!!!!!

  • @Joe-sr2pm
    @Joe-sr2pm 2 ปีที่แล้ว

    Are these soluble and insoluble in water?

    • @rdxviren4065
      @rdxviren4065 2 ปีที่แล้ว

      Yes in polar solvant

  • @mehedihasan7828
    @mehedihasan7828 3 ปีที่แล้ว

    Nice

  • @tomassilva9860
    @tomassilva9860 3 ปีที่แล้ว

    I'm confused...you said that PO4- is usually insoluble, then at 10:10 you said they are generally soluble? I don't get it

    • @gtmc
      @gtmc 3 ปีที่แล้ว

      You must've misheard, the PO4 ion is always insoluble. Unless, of course, combined with group 1 metals or ammonium.

    • @tomassilva9860
      @tomassilva9860 3 ปีที่แล้ว

      @@gtmc probably, But thanks for clearing that up.
      Cheers

  • @killajule8108
    @killajule8108 3 ปีที่แล้ว

    Isn’t lithium not always dissolvable I.e it’s phosphates, carbonates and even LiF is insolvable

  • @piglet2548
    @piglet2548 6 ปีที่แล้ว +1

    Soluble in water??

  • @갱갱항상
    @갱갱항상 3 ปีที่แล้ว +1

    thankfully, cuz of covid, we're excused from remembering all these rules LOL

    • @EnvieSage
      @EnvieSage 3 ปีที่แล้ว +2

      Damn that’s so clutch. Amazing professor

  • @amdaskmydad7393
    @amdaskmydad7393 4 ปีที่แล้ว

    wait so if it’s soluble it’s (aq) and when it’s insoluble it’s (s)? if yes what is L

    • @jayjelly6756
      @jayjelly6756 4 ปีที่แล้ว

      not always it depends on the element and L is liquid

  • @kimmyoree
    @kimmyoree 4 หลายเดือนก่อน +1

    I’m a medical assistant 😢. Pray for me 😂

  • @abdulrahmanali122
    @abdulrahmanali122 5 ปีที่แล้ว

    AgC2H3O2 is insoluble

  • @owenpark2592
    @owenpark2592 3 ปีที่แล้ว

    I love you

  • @aaliyahhlove
    @aaliyahhlove 5 ปีที่แล้ว

    CaS is soluble

  • @ChiomaJoy-km7ms
    @ChiomaJoy-km7ms ปีที่แล้ว

    My brain about to burst

  • @LASTCHANCE-mi8zy
    @LASTCHANCE-mi8zy 6 หลายเดือนก่อน

    fanstatic

  • @sahibsingh4672
    @sahibsingh4672 3 ปีที่แล้ว

    nearly went to sleep to his voice

  • @rekhameena2792
    @rekhameena2792 6 ปีที่แล้ว

    sir bicarbonates are also soluble

  • @manu-br4wc
    @manu-br4wc 5 ปีที่แล้ว

    It is just Br^- not Br^2-

  • @quirkyturtle6652
    @quirkyturtle6652 ปีที่แล้ว

    My final is in like 30 mins and I’m watching this lmao

  • @Animeluverperson724
    @Animeluverperson724 5 ปีที่แล้ว

    You skipped some

  • @HetaliaOkatu24
    @HetaliaOkatu24 3 ปีที่แล้ว +3

    please marry me, i will do the cooking and the cleaning i swear

  • @autumnsellars
    @autumnsellars 3 ปีที่แล้ว

    why exactly are there all those exceptions? I'm just trying to understand why the exceptions exist in the effort to more effectively memorize them.

    • @drewg4323
      @drewg4323 3 ปีที่แล้ว

      This video does a good job visually explaining that, he is my other go-to along with OCT th-cam.com/video/g_snytB7iQ0/w-d-xo.html
      In essence, it depends how the charges play off one another. Sometimes they have the charges needed to pull the molecule apart to dissolve, sometimes they don't.
      Normally I'm like you and knowing the 'why' helps things make more sense, but I can't say knowing why helped memorize the solubility rules all that much, this one seems to be just good ol' fashion beating it into your head via repetition.

  • @drabolfazlgholami
    @drabolfazlgholami 4 ปีที่แล้ว

    in this issue i know i should cheat hahaha

    • @exis2096
      @exis2096 4 ปีที่แล้ว

      bro why would you cheat, its LITERALLY on table F

  • @KhalidAlkhudhairi
    @KhalidAlkhudhairi 5 ปีที่แล้ว

    and

  • @gtmc
    @gtmc 3 ปีที่แล้ว +262

    **MNEMONICS TO MEMORIZE SOLUBILITY RULES!**
    Always Soluble: A NBC
    A(cetate)
    N(itrate)
    B(icarbonate)
    C(hlorate & perchlorate)
    Generally Soluble: HS
    H(alides) - except Fluorine, and except when combined with Ag, Pb, Hg
    S(ulfate) - except when combined with Ag, Pb, Hg, Ca, Sr, Br
    *NOTE: For the following, remember that all group 1 metals and ammonium are soluble, always so if for example you get Sodium Hydroxide, that is SOLUBLE because this rule supersedes all other rules!*
    Always Insoluble: CPS
    C(arbonate)
    P(hosphate)
    S(ulfide)
    Generally insoluble: HC
    H(ydroxide) - except when combined with Ca, Sr, Ba
    C(hromate) - except when combined with Mg, Ca

    • @bubbagarcia450
      @bubbagarcia450 2 ปีที่แล้ว +3

      when u say generally, it means slightly soluble/insoluble?

    • @gtmc
      @gtmc 2 ปีที่แล้ว +2

      @@bubbagarcia450 No, I mean they are soluble except when combined with the things I listed earlier

    • @sabehalaher1790
      @sabehalaher1790 2 ปีที่แล้ว +1

      Thank you soo much ♥️

    • @theobserver314
      @theobserver314 2 ปีที่แล้ว +2

      You are legend.

    • @anuragkumar228
      @anuragkumar228 ปีที่แล้ว +10

      its not a mnemonic its just a summary

  • @hansmorales4802
    @hansmorales4802 3 ปีที่แล้ว

    Thank you so much

  • @nitamac1312
    @nitamac1312 6 ปีที่แล้ว +115

    Dude you actually saved my life. My school has this program where you take the ap class with out the precursor. So I have been struggling every day to understand the info. You always break done nice and slow! Keep up the good work.

  • @batuhanpolat2902
    @batuhanpolat2902 4 ปีที่แล้ว +27

    It's been hard to understand this topic and also without knowing English enough, but you are a legend. I got it, thank you so much.

  • @anikasadavarte8921
    @anikasadavarte8921 3 ปีที่แล้ว +15

    THANKYOU SO MUCH.. THIS HAS HELPED ME TREMENDOUSLY! U CANT IMAGINE HOW AMAZING THIS IS.😭❤❤❤❤❤❤❤❤❤❤🙏🙏

  • @jburckhardt
    @jburckhardt 7 ปีที่แล้ว +71

    how do you remember all these...

    • @duckymomo7935
      @duckymomo7935 6 ปีที่แล้ว +5

      jburckhardt
      its only a handful of rules, it takes practice I guess

    • @zeeshansyed511
      @zeeshansyed511 5 ปีที่แล้ว

      jburckhardt Years of practice, it gets on with you with the time of repetition

    • @yurine477
      @yurine477 4 ปีที่แล้ว +1

      solubility table

    • @annewithane4253
      @annewithane4253 4 ปีที่แล้ว +2

      @@zeeshansyed511 bruh it takes years but our exam is later and our teacher has taught this to us last monday bro i'm gonna fail

    • @annewithane4253
      @annewithane4253 4 ปีที่แล้ว +3

      @@zeeshansyed511 OMG th-cam.com/video/AsCLuLS-yZY/w-d-xo.html IM GONNA PASS

  • @sagsboi6960
    @sagsboi6960 4 ปีที่แล้ว +36

    The organic chemistry teacher, if you read this I just want to say thanks for these videos they’ve helped me all the way through high school. Hope you have a good day sir

  • @incognito6751
    @incognito6751 3 ปีที่แล้ว +8

    In AP Chemistry, you have to memorize all of this...

  • @shahmirkhan5411
    @shahmirkhan5411 7 ปีที่แล้ว +5

    you saved my A level exam

  • @sitihajijah0502
    @sitihajijah0502 ปีที่แล้ว +2

    Thank you so much for the help. I never understand how to identify the state since O Level. And now I’m doing A level, I’m struggling but after watching your video, I can finally understand it. Once again, THANK YOU FOR THE HELP. May god bless you for helping people