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bichchung2005
2 năm trước
Cho 3,87 gam hỗn hợp gồm Mg và Al tác dụng với 500ml dung dịch HCl. Nếu pứ trên làm thoát ra 4,368 lít khí $H_{2}$ ( đktc ). Hãy tính số gam Mg và Al đã dùng ban đầu?
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