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buithicamnguyen2018qn
2 năm trước
giúp mình giải bài này đi cá c bạn Cho 31,4 (g) hỗn hợp gồm Al và Zn tác dụng vừa đủ với dung dịch HCl 2 (M) thu được 15,68 (l) H2 (đkc). a) Tính % khối lượng từng chất trong G. b) Tính thể tích HCl đã dùng. Cho : Al = 27, Zn = 65, H = 1, Cl = 35,5.
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