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minhduc1710
1 năm trước
Câu 1: cho 16,8g Để tác dụng với 6,72 lít khí Clo( đktc). Khối lượng muối tạo thành là? Câu 2: Hoà tan hết 7,8 gam hỗn hợp mg, Al bằng dung dịch HCl dư sau phản ứng thu được 0,8 g khí h2 số mol axit đã tham gia phản ứng là? Câu 3: cho 22,7 hỗn hợp gồm Zn và Cu tác dụng vừa đủ với dung dịch HCl thì thu được 6,72 lít khí H2 ( đktc) khối lượng chất rắn thu được sau phản ứng là?
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