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tinvan506
2 năm trước
Dùng khí H2 khử 9.6 hỗn hợp Fe2O3 và CuO trong hỗn hợp tỉ lệ giữa Fe2O3 và CuO là 3/7. a, Tính khối lượng Fe và Cu thu được sau phản ứng b, Thể tích H2(ĐKTC)
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