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hop712
2 năm trước
Cho 10gam hỗn hợp hai kim loại Fe, Cu vào tỏng dung dịch H2SO4 , loãng người ta thu được 2,24 lít khí ( ở đktc) . Tính khối lượng của mỗi kim loại trong hỗn hợp (Cho Fe=56, Cu= 64)
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