mavzulashtirilgan 2016
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1 mavzulashtirilgan 2016-yil testlar to’plami davlat test markazi ilyos egamov tayyorlov kursi 2 mol-miqdor & avagadro soni 1. 3,5 sm 3 platina namunasida necha dona rt20 tarkibli nanozarracha mavjud? platinaning zichligi 21,45 g/sm 3 . a) 4,63 • 10 24 b) 1,16 • 10 22 c) 2,31 • 10 23 d) 1,16 • 10 23 2. 3,5 sm 3 platina namunasida necha dona rt40 tarkibli nanozarracha mavjud? platinaning zichligi 21,45 g/sm 3 . #: 5,79• 10 22 3. 3,5 sm 3 platina namunasida necha dona rt50 tarkibli nanozarracha mavjud? platinaning zichligi 21,45 g/sm 3 . #: 4,63• 10 22 4. 5,5 sm 3 oltin namunasida necha dona au23 tarkibli nanozarracha mavjud? oltining zichligi 19,32 g/sm 3 . #: 1,41• 10 …
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