kimyo 17-iyul 1-smena @kimyoproton
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17-iyul 2025 i-smena savollari. 1. mol miqdordagi ohakli suvga 224 litr havo qo’shilganda 0,3gr cho’kma tushdi havodagi co2 hajmiy ulushini toping. a) 0,5 b) 0,3 c) 0,03 d) 0,05 2. li va mg dan iborat aralashma 400 ml n2 bilan reaksiyaga kirishishi natijasida aralashma massasi 528 gr ortgan bo’lsa gazning zichligini toping. a) 7,57 b) 1,32 c) 1,88 d) 1,7 3. r1-c=c+h2o=r2-oh reaksiyada 9 gr suv sarflanib 44 gr spirt hosil bolgan bolsa spirtdagi uglerodlar sonini toping. a) 3 b) 4 c) 5 d) 6 4. polipropilenning massasi undagi vodorod massasidan 3600 gr ga og'ir bo'lsa polimerlanish darajasini aniqlang. a) 100 b) 120 c) 150 d) 180 5. ba metali va cac2 aralashmasiga suv ta’sir ettirildi, olingan gazlar aralashmasini massasi …
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