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phanuan028
2 năm trước
Câu 24: Lấy 8 gam hỗn hợp gồm Mg và Fe trộn theo tỉ lệ khối lượng là cho tác dụng 100 ml dd CuSO4 1,5 M. Tính khối lượng các chất tan trong trong dd và các chất còn lại không tan trong bình?
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