kimyo [dtm]-05-08-2026 15-19-53
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variant (1055) 1 kimyo [dtm]-1055 1. mol nisbati 2:3 bo'lgan e2o3 va eo2 aralashmasining 1 moli 58 g kelsa, noma’lum elementni aniqlang. a) azot b) xlor c) uglerod d) marganes 2. al, mg, zn, fe metallaridan iborat 52,4 g qotishma xlorid kislotada eritilganda 1,1 mol gaz ajraldi. shunday massali va tarkibli qotishma ishqor eritmasida eritilganda 0,9 mol gaz ajraldi. agar zn atomlari soni al atomlari sonidan 3 marta ko‘p bo`lsa, qotishmadagi mg va fe massalarining (g) farqini toping. a) 3,2 b) 6,4 c) 1,6 d) 1,8 3. quyida keltirilganlardan: a – gomogen aralashma; b – geterogen aralashma; c – sof moddalar sonini ko‘rsating. milliy cola, qon, shakarning suvdagi eritmasi, choy, mis, benzin aralashgan suv, loyqa suv. a) a- 2; b- …
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