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hongnhungdhsp1991
2 năm trước
Hỗn hợp X gồ 2 Kl A và B có tỉ khối lượng 1:1 và khối lượng mol nguyên tử của A nặng hơn B là 8 gam.Trong 33.6 gam X có số mol A khác B là 0.0375
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