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princessmoon26012002
2 năm trước
cho 8.96 lít khí co đi qua 16 gam sắt(III) oxit nung nóng sau phản ứng ta thu được sắt và hỗn hợp khí có tỉ khối hơi so với khí hidro là 17.6. Tính hiệu suất phản ứng
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