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kiencag
2 năm trước
Có 4 lọ mất nhãn là A, B, C, D. Mỗi lọ chứa một trong các dung dịch sau: AgNO3, ZnCl2, HCl và Na2CO3. Biết rằng lọ A tạo chất khí với lọ C nhưng không phản ứng với lọ B, lọ A và lọ B tạo kết tủa với lọ D. Hãy xác định các chất trong các lọ A, B, C, D và viết PTHH xảy ra.
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