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General reaction scheme for the S N 1 reaction. The leaving group is denoted "X", and the nucleophile is denoted "Nu–H". The unimolecular nucleophilic substitution (S N 1) reaction is a substitution reaction in organic chemistry.
Trần Đại Quang (Vietnamese pronunciation: [t͡ɕən˨˩ ʔɗaːj˧˨ʔ kwaːŋ˧˧]; 12 October 1956 – 21 September 2018) was a Vietnamese politician and former police general who served as the ninth president of Vietnam from 2016 until his death in 2018.
Abridged Chronicles of Đại Việt) or Việt sử lược (chữ Hán: 越史略; lit. Abridged Chronicles of Viet ) is an historical text that was compiled during the Trần dynasty . The three-book work was finished around 1377 and covers the history of Vietnam from the reign of Triệu Đà to the collapse of the Lý dynasty . [ 1 ]
Đại Cồ Việt was the name chosen by Đinh Bộ Lĩnh for his realm when he declared himself emperor in 966. [20] It is probably derived from the vernacular Cự Việt ("Great Việt") or Kẻ Việt ("Việt Region"), with the Sino-Vietnamese Đại ("great") added as a prefix.
Nguyễn Tấn Dũng (Vietnamese pronunciation: [ŋwiən˦ˀ˥ tən˧˦ zʊwŋ͡m˦ˀ˥]; born 17 November 1949) is a Vietnamese politician who served as the Prime Minister of Vietnam from 2006 to 2016.
Lê Văn Hưu was a renowned scholar and an official of the royal court of the Trần dynasty during the reign of Trần Thái Tông and Trần Thánh Tông who promoted him to the position of Hàn Lâm viện học sĩ (是翰林學士, Member of the Hanlin Academy) and Quốc sử viện giám tu (Supervisor of the royal bureau for historical records).
Rebellions soon swept the countryside. In addition, the Song dynasty sent troops under Hou Renbao to invade Đại Cồ Việt under the pretext of removing threats to the young emperor's rule. In response the Viet court urged Lê Hoàn to become king, pacify the countryside, and prepare for the Song invasion. [2]
The Đồng Nai River (Vietnamese: sông Đồng Nai listen ⓘ) is a river in Vietnam that originates in the Central Highlands region of the southern portion of the country. . It is approximately 586 km in length, [1] making it the longest river to be entirely located in Vietn