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huyen
2 năm trước
Cho 10g hỗn hợp Mg và Cu vào 300ml dung dịch HCl dư, thấy thoát ra 2,24l khí (đktc). a, Tính phần trăm khối lượng từng loại b, Tính Cm dung dịch HCl đã dùng
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