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Nguyetuducminh
2 năm trước
6/. Cho 11,8 gam hỗn hợp Al và Cu tác dụng với dd HCl dư thì có 6,72 lít khí thoát ra (đktc). a/. Tính khối lượng mỗi kim loại trong hỗn hợp. b/. Tính khối lượng dung dịch HCl 18,25% cần dùng.
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