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nhatanh213
2 năm trước
Cho 18.4g hỗn hợp Fe, Cu tác dụng với 100ml dd H2SO4 (a)M thu được 7.84l SO2 (ĐKTC) và dd muối A. a) Viết PTPU b) Tính % mỗi kim loại trong hỗn hợp c) Tính CM H2SO4 d) Tính khối lượng muối thu được sau khi cô cạn dung dịch A
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