(1)Lewis酸和Lewis碱可以形成酸碱复合物。根据下列两个反应式判断反应中所涉及Lewis酸的酸性强弱,并由强到弱排序___。F4Si-N(CH3)3+BF3→F3B-N(CH3)3+SiF4;F3B-N(CH3)3+BCl3→Cl3B-N(CH3)3+BF3(2)①分别画出BF3和N(CH3)3的分子构型___,指出中心原子的杂化轨道类型___。②分别画出F3B-N(...
我国东方Ⅱ号宇宙火箭的燃料是N2H2(CH3)2.助燃剂为N2O4.两者发生完全燃烧时产生了巨大推力.让火箭携带卫星上天. ⑴N2H2(CH3)2中N的氧化数为 ① .N2O4中N的氧化数为 ② .⑵完全燃烧反应的化学方程式为 ③ .⑶试写出N2O4中N.N连接的一种Lewis结构式并标出形式电荷 ④ .⑷N2H4
N (SiH3)3和N (CH3)3都是Lewis碱,其碱性……… ( ) A. N (SiH3)3 > N (CH3)3 B. N (SiH3)3 < N (CH3)3 C. N (SiH3)3 = N (CH3)3 D. 不能判断 相关知识点: 试题来源: 解析 B.N (SiH3)3 < N (CH3)3 反馈 收藏
Draw the Lewis structure and formula forN−chloromethylamine. Question: Draw the Lewis structure and formula forN−chloromethylamine. Chemical Formula: The chemical formula of a compound is a short hand representation of compounds or molecules using the letter names of each atom approved by t...
n-Butane structure CAS No. 106-97-8 Chemical Name: n-Butane Synonyms BUTANE;r600;n-Butan;Batane;n-C4H10;BUTANES;1-Butane;A-17;Q GAS;Bu-Gas CBNumber: CB6152626 Molecular Formula: C4H10 Lewis structure Molecular Weight: 58.12 MDL Number: ...
Lewis酸和Lewis碱可以形成酸碱复合物.根据下列两个反应式判断反应中所涉及Lewis酸的酸性强弱.并由强到弱排序.w.w.w.k.s.5.u.c.o.m F4Si-N(CH3)3 + BF3 ® F3B-N(CH3)3 + SiF4 ; F3B-N(CH3)3 + BCl3 ® Cl3B-N(CH3)3 + BF3
To calculate the oxidation numbers for C5H5N5, count the number of atoms, draw the lewis structure by adding bonds, assign electrons from each bond, and count the number of electrons assigned to each atom. Count Atoms Use the chemical formula, C5H5N5, to count the number of atoms of each...
Draw the Lewis dot structure for N4O. Octet Rule in a Lewis Dot Structure:In a Lewis dot structure, all the constituting atoms except hydrogen tend to satisfy their octets to the maximum extent using the total number of valance electrons available. However, any excess valence electrons are ...
NBO analysis is proved to be an efficient method to elucidate the most possible natural Lewis structure picture of orbitals. MCMH has been subjected to NBO analysis to elucidate the intra and intermolecular interactions between the filled and vacant orbital, which is a measure of hyperconjugation or...
With the employment of imidazole, which is known as a powerful Lewis base and acylating catalyst, and the adjustment of the Pd/P ratio, an 89 % yield of the amide was obtained. Since this reaction was conducted under CO (5 bar), DMF was considered to be the amine source [2]. ...