Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 74 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 9-sinf Kimyo olimpiada №4 03.01.2023 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 1s22s22p63s23p6 elektron konfiguratsiya qaysi zarrachaga tegishli? Cl⁺ Ti³⁺ Ne S2⁻ 2 / 25 Tarkibida 80% suv saqlagan 100 g NaOH eritmasini bug’latib, tarkibida 5% suv saqlagan eritmadan necha gramm olish mumkin? 31 40 54 21 3 / 25 NO va N2Ox dan iborat aralashmada kislorodning massa ulushi 40% , NO ning massa ulushi 21,4% bo’lsa, X ni toping. 2 1 3 5 4 / 25 200 ml 0,2 M KOH eritmasiga 300 ml 0,15 M HCl eritmasi qo`shildi. Hosil bo`lgan eritmaning pH qiymatini aniqlang. Eritmalar aralashtirilganda eritmalar hajmi qo`shiladi deb hisoblang. 2 3 4 1 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. 0.05 4.5 20 10 6 / 25 D C A B 7 / 25 B A C D 8 / 25 A D C B 9 / 25 A C D B 10 / 25 C B D A 11 / 25 D A C B 12 / 25 A C B D 13 / 25 C B D A 14 / 25 B D A C 15 / 25 A D B C 16 / 25 C A D B 17 / 25 D A C B 18 / 25 D A C B 19 / 25 C D B A 20 / 25 D B C A 21 / 25 D B C A 22 / 25 A C D B 23 / 25 A C D B 24 / 25 D C A B 25 / 25 C B A D 0% Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz
