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phamvy123
2 năm trước
Đốt cháy hoàn toàn 7 gam hidrocacbon A thu được 23.1 gam khí cacbonic. a. Tính khối lượng của cacbon và hidro. b. Tìm công thức nguyên của A c. Tìm công thức phân tử A, biết A có 6 nguyên tử cacbon
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