Chemistry, 13.07.2021 17:40 juliannxkim

Cho m gam hỗn hợp (A) gồm Zn và Fe vào dung dịch HCl dư, thu được 1,12 lít khí hidro. Nếu cho m gam hỗn hợp (A) vào dung dịch CuSO4 dư. Phản ứng xảy ra xong thì số gam kết tủa thu được là: A. 0,8 gam B. 3,2 gam C. 1,6 gam D. 6,4 gam

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Cho m gam hỗn hợp (A) gồm Zn và Fe vào dung dịch HCl dư, thu được 1,12 lít khí hidro. Nếu cho m gam...

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