Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 708 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 1 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 9-sinf Kimyo olimpiada №4 03.01.2023 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 Avogadro doimiysining o‘lchov birligi qanday? g/mol mol 1/mol o‘lchov birligiga ega emas 2 / 25 NO va N2Ox dan iborat aralashmada kislorodning massa ulushi 40% , NO ning massa ulushi 21,4% bo’lsa, X ni toping. 2 5 3 1 3 / 25 120 g 20% li NaOH eritmasiga 480 g 10%li NaOH eritmasi qo’shildi. Bunda 6M li eritma hosil bo’ldi. Hosil bo’lgan eritmaning zichligini (g/ml) toping. 1.6 1.5 2 1.3 4 / 25 reaksiyada X - : α-zarracha elektron β-zarracha neytron 5 / 25 Eng qutibli bog`: Br-Cl I-Cl N-Cl P-Cl 6 / 25 A B C D 7 / 25 D B C A 8 / 25 A C B D 9 / 25 C A D B 10 / 25 A D C B 11 / 25 C D A B 12 / 25 D C B A 13 / 25 C B A D 14 / 25 B D A C 15 / 25 B C A D 16 / 25 B A C D 17 / 25 C B D A 18 / 25 C D A B 19 / 25 B A D C 20 / 25 C B D A 21 / 25 D A B C 22 / 25 C D A B 23 / 25 D A C B 24 / 25 B A C D 25 / 25 C D B A 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
