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sonlamchimieu1999
2 năm trước
giải hộ  Cho 14,9 gam muối kali halogenua (X) tác dụng với dung dịch AgNO 3  dư thì thu được 28,7 gam một kết tủa. Công thức của muối X là A. KF    B. KBr    C. KI    D. KCl
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