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buithicuc27111991
2 năm trước
Quangcuong347 giúp em với Cho 10g hh gồm Mg, MgO, Al, Al2O3, Zn, ZnO tác dụng vừa đủ với 170ml dd HCl 2M thu được dd X và V lít khí (đktc). Cô cạn dd X thu được 20,47g muối khan. Giá trị của V là?
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