Uy » Online olimpiada » Kimyo olimpiada » 9-sinf Kimyo olimpiada №4 Kimyo olimpiada 9-sinf Kimyo olimpiada №4 InfoMaster Yanvar 5, 2023 643 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 Moddaning kimyoviy xossalarini o‘zida saqlovchi eng kichik zarra bu - … molekula atom yadro klaster 2 / 25 Sulfat angidridning parchalanish reaksiyasini to’rt marta orttirish uchun idishning hajmi qanday o’zgarishi lozim. 4 marta kamayishi 2 marta kamayishi 4 marta ortishi 2 marta ortishi 3 / 25 Noma’lum x M li Y tuzning titr va foiz konsentratsiyalari nisbatini aniqlang.(p=2g/ml) 1:40 1:50 1:25 2:25 4 / 25 Quyida molekulaning elektron tuzilishi berilgan: N₂O CO₂ H₂O OF₂ 5 / 25 Pirobelonit PbMn₂VO₄OH mineralida vanadiyning oksidlanish darajasi: +3 +2 +5 +1 6 / 25 B D A C 7 / 25 A B C D 8 / 25 B C A D 9 / 25 C A B D 10 / 25 A C D B 11 / 25 B D A C 12 / 25 D B C A 13 / 25 D A C B 14 / 25 A D C B 15 / 25 A D C B 16 / 25 A C D B 17 / 25 D B A C 18 / 25 C B A D 19 / 25 C A B D 20 / 25 C A D B 21 / 25 D B A C 22 / 25 B C D A 23 / 25 B A D C 24 / 25 A C B D 25 / 25 D A B C 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
