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phamthianhgvhoa1979
2 năm trước
Hòa tan hoàn toàn 11,9 gam hỗn hợp A gồm Al, Zn vào 400 ml dung dịch HCl (vừa đủ) thu được 8,96 lít khí (đktc) a) tính khối lượng mỗi chất trong hỗn hợp A b) tính nồng độ mol/lít của HCl tham gia phản ứng
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