[Học Để Thi] New comment on Tuyển tập những bài tập Hóa Học Hay.

Trang Ánh Nam has left a new comment on your post "Tuyển tập những bài tập Hóa Học Hay":

Cho 13.92g hỗn hợp Cu và một oxit sắt tác dụng với dung dịch HNO3 loãng được 2.688 lit khí NO duy nhất(đktc) và 42.72g muối khan. Công thức oxit sắt là?

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Posted by Trang Ánh Nam to Học Để Thi at December 7, 2018 at 2:43 PM

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