Qaysi kimyoviy elementning eng barqaror izotopi radioaktiv emas, ammo qolgan barcha izotoplari radioaktiv hisoblanadi?, A) Texnetsiy (Tc), C) Bizmut (Bi), Entalpiya o‘zgarishi manfiy bo‘lgan reaksiya qanday jarayon?, C) Egzotermik, A) Endotermik, Kation va anion radiuslarining farqi nimani bildiradi?, A) Atom massasini, C) Ionik xarakterni, Le-Shatole prinsipi nima bilan bog‘liq?, B) Dinamik muvozanatdagi sistemaning tashqi ta’sirga javobi, C) Kovalent bog’lar energiyasi, 1 mol ideal gaz 27°C haroratda va 1 atm bosimda qanday hajm egallaydi? (R = 0.082 atm·L/mol·K), A) 22.4 L, D) 26.8 L, Kovalent radiusi eng katta bo‘lgan elementni tanlang:, B) Cl, Yod, Qanday muhitda ammoniy ion (NH₄⁺) barqaror bo‘lmaydi?, A) Neytral, C) Ishqoriy, MnO₄⁻ ni Mn²⁺ ga aylantirishda nechta elektron ishtirok etadi?, 5, 3, 4, 2, Qaysi element suv bilan to‘g‘ridan-to‘g‘ri reaksiyaga kirishib ishqor va vodorod hosil qiladi?, Na, Mg, Ca, K, Kalsiy karbonat (CaCO₃) kuchli qizdirilganda nima hosil bo‘ladi?, A) Ca + CO₂, B) CaO + CO₂, D) CaO + CO, C) Ca(OH)₂ + CO.
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