Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 653 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 Oltingugurt bug‘larining metanga nisbatan zichligi 16 bo‘lsa, bug‘ molekulalarining formulasini aniqlang. S₆ S₄ S₈ S₂ 2 / 25 NO va N2Ox dan iborat aralashmada kislorodning massa ulushi 40% , NO ning massa ulushi 21,4% bo’lsa, X ni toping. 3 2 5 1 3 / 25 Vodorodning 3 xil izotopi (¹H; ²D; ³T) va kislorodning ¹⁷O va ¹⁸O li izotoplaridan hosil bo’lgan suv molekulalaridan necha foizi tarkibida 11 ta neytron boladi? 33,3 41,6 16,6 25 4 / 25 Agar quyidagi reaksiya butun koeffisentlar bilan tenglashtirilsa, H+ oldidagi koeffisent nechaga teng? 4 7 14 3 5 / 25 Eng qutibli bog`: Br-Cl P-Cl I-Cl N-Cl 6 / 25 B D C A 7 / 25 C A B D 8 / 25 D B A C 9 / 25 D A B C 10 / 25 B D A C 11 / 25 C D B A 12 / 25 B D A C 13 / 25 C D A B 14 / 25 B A D C 15 / 25 B D A C 16 / 25 D B A C 17 / 25 D A C B 18 / 25 A C B D 19 / 25 D B C A 20 / 25 B D C A 21 / 25 D B A C 22 / 25 C A B D 23 / 25 D B C A 24 / 25 D A B C 25 / 25 D C A B 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
