Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 654 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 0 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? mol 1/mol g/mol o‘lchov birligiga ega emas 2 / 25 Ma’lum temperaturada 6 g X modda 4 sekundda hosil bo’ladi. Tezlik ikki marta orttirilsa, 9 g modda necha sekundda hosil bo’ladi. 3 18 9 6 3 / 25 Biror bir tuzning 70°C dagi eruvchanlik koeffitsiyenti uning 50°C dagi eruvchanlik koefsiyentidan 1,5 barobar ko’p. Agar shu tuzning 70°C dagi to’yingan 290 g eritmasi 50°C ga qadar sovitilganda 30 g tuz cho’kmaga tushishi ma’lum bo’lsa, shu tuzning 70°C dagi eruvchanlik koeffitsiyentini aniqlang. 45 20 60 30 4 / 25 Agar quyidagi reaksiya butun koeffisentlar bilan tenglashtirilsa, H+ oldidagi koeffisent nechaga teng? 7 14 3 4 5 / 25 reaksiyada X - : elektron neytron β-zarracha α-zarracha 6 / 25 C B A D 7 / 25 C B A D 8 / 25 C B D A 9 / 25 D A C B 10 / 25 D C A B 11 / 25 D C A B 12 / 25 D C A B 13 / 25 A B D C 14 / 25 B C D A 15 / 25 D A C B 16 / 25 D C B A 17 / 25 C D B A 18 / 25 A D B C 19 / 25 B A D C 20 / 25 A C D B 21 / 25 A C D B 22 / 25 A C D B 23 / 25 B D A C 24 / 25 C D A B 25 / 25 A B C D 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
