UNIVERSAL KIMYO
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Keling!!! Kimyoni birgalikda Γ³rganamizπŸ”₯
Π”Π°Π²Π°ΠΉΡ‚Π΅!!! Π˜Π·ΡƒΡ‡Π°Π΅ΠΌ вмСстС Π₯имиюπŸ”₯
ustoz: Bunyod Raxmanov
Bog'lanish πŸ”— @ChemOfficer_bot
Bog'lanish πŸ”— @ProChem
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UNIVERSAL KIMYO
5.19K subscribers
UNIVERSAL KIMYO
πŸ”’βŽπŸ…°οΈπŸ…°οΈπŸ…°οΈπŸ…°οΈπŸ…°οΈ

5️⃣ 3,2 gr metal oksidi vodorod bilan metallgacha qizdirilganda 2,24 gr metal hosil boldi. Metall oksidi formulasini toping.
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6️⃣ Atmosfera havosidan elektr uchquni o'tkazildi natijada X gramm A modda qo'ng'ir rangli B moddaga aylandi.hosil bo'lgan B modda natriy ishqori eritmasidan o'tkazildi.hosil bo'lgan eritmadan suv bug'latildi va qolgan tuz qizdirildi natijada 27,6 gramm tuz qoldi. X ni toping
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7️⃣ H2S va mo'l miqdordagi kisloroddan iborat 100ml aralashma yondirildi natijada 62.5ml gazlar aralashmasi hosil bo'ldi reaksiya uchun olingan kislorod miqdori qancha?
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8️⃣ As2S3+HNO3=H3AsO4+H2SO4+NO2+H2O ushbu reaksiyani yarim reaksiyada tenglang va oksidlanish jarayonini kimyoviy tenglamasini yozing
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9️⃣ P Sc Ar H He S O elementlari bo'lgan qaysi ikkita moddani qoΚ»zgalmagan holatida tashqi elektronlar soni farqi 3 ga teng
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πŸ”Ÿ K L M N qavatlarida M v N qavatda jami nechta boΚ»sh yacheyka bor?
M pogonadagi elektronlar 2s2 2p6 3d2 holati yacheykalarda chizib berilgan. Javob: 3, 18, 12, 11
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1️⃣1️⃣ RO4 qaysi element oksidi
A) Ruteniy
B) Neon
C) Argon
D) Marganes
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1️⃣2️⃣ NH4ClO4+Pβ€”>Cl2+N2+H3PO4+H2O
Jami koefitsiyentlar yigΚ»indisi soΚ»ralgan
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1️⃣3️⃣ R1COOR2 va R2OR3 dagi jami sigma bog'lar 29 ta. Murakkab efirni hosil qilgan spirtda 6 ta atom bor. R2OR3 da 13 ta sigma bog' bor. R3 ni toping.
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1️⃣4️⃣ Daltonit qanday kristal panjaraga ega?
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1️⃣5️⃣ A modda HCl da eritildi. Natijada B modda hosil bo'ldi. B+Cβ€”>D(cho'kma)+H2O. [A modda 3-davrda joylashgan]
⚠️ C modda bo'yicha ma'lumot yetarli emas, kirib chiqqanlar to'ldiring.
A) Fe2S3
B) Na2S
C) Na2O
D) MgSO3
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1️⃣6️⃣ Kaliyning galogenli tuzining eritmasi 13,8 A tok bilan 6 soat davomida elektroliz qilindi umumiy anodda hosil bolgan moddalar katodda hosib bo'lgan moddalardan 140 gr ga ko'p nomalum galogenni aniqlang.
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1️⃣7️⃣ M pogonada joylashgan elementda 8 ta s orbital bor (Ti ning elektron konfiguratsiyasini chizib bergan). Shundagi M va N qavatlardagi bo'sh orbitallar sonini hisoblang.
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1️⃣8️⃣ Molekulasida 15 ta sigma bog' va 2 ta uchlamchi uglerod saqlagan sikloalkan H2 ta'sirida parchalanganda 1:2 mol nisbatda tarmoqlangan va tarmoqlanmagan o'zaro izomer bo'lgan alkanlar hosil bo'ldi. Tarmoqlangan alkanni sistematik nomenklanatura bo'yicha nomlang.
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1️⃣9️⃣ Etan va atsetilendan iborat 2 l aralashmaga 4 l H2 qoβ€˜shib toβ€˜liq gidrogenlandi. Natijada 4,4 l aralashma olindi (hajmlar bir xil sharoitda oβ€˜lchangan). Dastlabki aralashmadagi etanning mol ulushini toping.
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2️⃣0️⃣ Hβ‚‚S va mo'l miqdordagi kisloroddan iborat 100 ml aralashma yondirildi. Hosil bo'lgan suv bug'i kondensatsiyalangach, 62,5 ml gazlar aralashmasi qoldi. Gaz hajmlari bir xil sharoitda o'lchangan. Dastlabki aralashmadagi kislorod hajmini (ml) aniqlang.
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2️⃣1️⃣ 23,2 g noma'lum aldegid 0,9 mol Cu(OH)β‚‚ ning yangi tayyorlangan eritmasidan o'tkazilganda hosil bo'lgan qattiq modda qizdirilganda 65,6 g qattiq qoldiq qolgan bo'lsa, aldegid tarkibidagi Οƒ-bog'lar sonini aniqlang.
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1️⃣⏺️2️⃣7️⃣0️⃣9️⃣2️⃣6️⃣

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ustoz✍️ Bunyod Raxmanov
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kanalπŸ”— @olympic_uz_ru_en
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ustoz✍️ Bunyod Raxmanov
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