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doanhien129
2 năm trước
Bài thứ 6(13/8) 1) viết pthh khi cho Na, Al, Fe, Cu tác dụng với Cl2, dd MgCl2, dd Cu (NO3)2. 2 tìm VCl2 thu được khi cho MnO2 dư tác dụng 200gam dd HCl 36,5%?
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