A) 40; 20
C) = 200; S(70°C) = 500]
A) 40; 20 B) 55; 5
C) 45; 15
D) 50; 10
Kumush nitratning 70°C dagi toyingan eritmasi 20°C gacha sovutilganda
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Ñáîðíèê: Kimyo
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33. Eruvchanlik
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