Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 609 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 2 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 9-sinf Kimyo olimpiada №4 03.01.2023 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 98% sulfat kislota hosil qilish uchun 32% 20,0 kg oleumga qancha 60% sulfat kislota qo‘shish kerak? 4,84 kg 5,84 kg 7,84 kg 6,84 kg 2 / 25 MeSO4 o’zining massasidan 2 marta ko’p suvda eritilganda eritmadagi SO42- anionining massa ulushi 1/5 ga teng bo’ldi. Metallni aniqlang. Cd Cu Mg Fe 3 / 25 rom atomining bosh kvant soni 3 ga teng bo’lgan +1/2 spinli elektronlar soni nechta? 10 8 9 7 4 / 25 N₂(g) + ₃H₂(g) →₂NH₃ (g) ushbu jarayonda 11,2 dm³ (n.sh.) azot va 1,0 gr vodorod ishlatildi va bunda 0,25 mol ammiak ajratib olindi. Reaksiya unumini aniqlang. 50% 75% 25% 33% 5 / 25 Ma’lum bir sharoitda N₂O₄(g) ⇄ 2NO₂(g) reaksiyaning muvozanat konstantasi 5,0·10-2 ga teng. Xuddi shu sharoitda NO₂(g) ⇄ ½ N₂O₄(g) reaksiyaning muvozanat konstantasini hisoblang. 20 0.05 10 4.5 6 / 25 A B C D 7 / 25 A D B C 8 / 25 B A D C 9 / 25 C A B D 10 / 25 B C A D 11 / 25 B D C A 12 / 25 A B D C 13 / 25 D A C B 14 / 25 B A C D 15 / 25 D B C A 16 / 25 D A C B 17 / 25 B A C D 18 / 25 D C B A 19 / 25 A B C D 20 / 25 A D B C 21 / 25 C B A D 22 / 25 A C B D 23 / 25 C D B A 24 / 25 C D A B 25 / 25 C D B A 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
