kimyo test baza 1000 talik
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1. 2 hajm 6 m hcl va 3 hajm 4 m h2so4 eritmalarini aralashtirilishidan olingan 50 ml eritma 3,51 g mg va al qotishmasini to’la eritish uchun sarflandi. qotishma tarkibidagi metallarning atomlar soni nisbatini aniqlang. α =100% a) 1 : 2 b) 3 : 1 c) 4 : 1 d) 2 : 3 2. 20 ml 6 m li hcl eritmasiga necha millilitr 4 m li h2so4 eritmasidan qo’shilganda, hosil qilingan eritma, mol nisbati 1 : 2 bo’lgan mg va al dan iborat 3,51 g qotishmani to’la eritish uchun sarf bo’ladi? α =100% a) 20 b) 30 c) 40 d) 50 3. 30 ml 4 m li h2so4 eritmasiga 6 m li hcl eritmasidan necha ml qo’shilganda, hosil qilingan eritma …
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