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vyvynguyen
2 năm trước
Cặp chất nào sau đây khi tan trong nước chúng tác dụng với nhau tạo ra chất kết tủa? A :NaCl và AgNO3. B: NaOH và HCl C:KOH và NaCl. D:CuSO4 và HCl
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