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Dẫn canxi cacbua qua nước thu được khí axetilen.
Đun nóng khí axetilen ở nhiệt độ cao thu được benzen.
Cho benzen phản ứng với hidro ở nhiệt độ cao thu được hexametylen.
Cuối cùng cho benzen tác dụng nước brom, thấy được nước brom bị mất màu, tạo thành C6H5Br.
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400
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Hydrogen is the first element in the periodic system table. Hydrogen is known to be the lightest of all, the most abundant in the Universe, the essential element for life
View moreHelium is the first rare gas element in the periodic system table. In the Universe, it ranks second in abundance after elemental hydrogen.
View moreLithium is the alkali metal element, located in the third cell in the periodic table system. Lithium is the lightest of all solid metals and can cut a knife.
View moreBeryllium is the lightest alkaline earth metal. Beryllium is found in precious stones such as emeralds and aquamarine. Beryllium and its compounds are both carcinogenic.
View moreCarbon is the non-metallic element in the sixth cell in the periodic system table. Carbon is one of the most important elements in all life, it is also known as the back.
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