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caominhanh571994
2 năm trước
: Cho 2, 8 gam Fe tác dụng với dung dịch axit H2SO4, tính thể tích khí H2 thu được ở điều kiện tiêu chuẩn? Cho sơ đồ pư: Fe+ H2SO4  FeSO4+ H2 Cho Fe=56
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