Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 680 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 Sulfat kislotali muhitda kaliy yodidga 5% 500 ml (ρ = 1,0 g/ml) KMnO4 ta’sir ettirib qancha yod olish mumkin? 200 g 50 g 100 g 150 g 2 / 25 NO va N2Ox dan iborat aralashmada kislorodning massa ulushi 40% , NO ning massa ulushi 21,4% bo’lsa, X ni toping. 2 3 5 1 3 / 25 Sulfat angidridning parchalanish reaksiyasini to’rt marta orttirish uchun idishning hajmi qanday o’zgarishi lozim. 4 marta ortishi 2 marta kamayishi 2 marta ortishi 4 marta kamayishi 4 / 25 Eng qutibli bog`: N-Cl I-Cl P-Cl Br-Cl 5 / 25 20 ml 0,10 M li Na₂SO₄ ni 50 ml 0,30 M Na₃PO₄ eritmasi bilan aralashtirilganda hosil bo`ladigan eritmadagi Na+ ionlarining konsentrasiyasini aniqlang. 0,24 M 0,70 M 0,15 M 0,48 M 6 / 25 C A B D 7 / 25 A C D B 8 / 25 D B A C 9 / 25 A C D B 10 / 25 A D C B 11 / 25 B C A D 12 / 25 D A C B 13 / 25 D B A C 14 / 25 B C D A 15 / 25 C B A D 16 / 25 B D A C 17 / 25 C D B A 18 / 25 D C A B 19 / 25 D C A B 20 / 25 D A B C 21 / 25 B C A D 22 / 25 C A B D 23 / 25 A B C D 24 / 25 D B A C 25 / 25 A C B D 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
