fizika fanidan monitoring test

3-blok 24-maktab 9-“____” sinf o’quvchisi _______________________________________________________ 9-sinf uchun fizika fanidan monitoring test. 1.bitta kislorod ( o2) molekulasining massasi qanchaga teng( kg ) ? a)5.5*10-26 b)5.3*10-26 c)19*10-23 d)1.9*10-26 2.hajmlari teng bo’lgan suv ( ns) va muzdagi (nm) molekulalar sonini taqqoslang. a) b) c) d) 3. 3.01*1026 ta temir atomining massasini hisoblang(kg).temirning molar massasi 56 . na = 6.02*1023 mol -1 a)28 b)280 c)56 d)168 4. bitta uglerod atomining massasini aniqlang(kg). m=12 , na = 6*1023 mol -1 a)7.2*10-27 b)2*10-26 c)5*10-26 d)5*10-27 5. 2 mol suv qancha hajmni egallaydi(sm3)? a)v1=v2 b)v1=16v2 c) v1=32v2 d) v2=32v1 6. 36sm3 hajmdagi suvda nechta molekula bor? na = 6*1023 mol -1 a)1.2*1024 b)2.4*1024 c)3.6*1024 d)6*1024 7.avogadro s...

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