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huyetho0216
2 năm trước
Để có thể phân biệt các lọ mất nhãn chứa etyl axetat và axit axetic, không thể dùng: A. CaCO3 B. quỳ tím C. Na2CO3 D. dd Br2 lý giải cho mik luôn nha iu :v
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