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amilieangel160708
2 năm trước
Cho $8$ gam hỗn hợp $Fe,Mg$ tác dụng hết với $200ml$ dung dịch $H_{2}SO_{4}$ $1M$. Tính phần trăm theo khối lượng mỗi kim loại có trong hỗn hợp.
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