Acids with different cation were distinguishingly different in activation energy and frequency factor distribution. 不同阳离子的同种羧酸盐,活化能和频率因子分布却相差很大。
C36CH2 cations have antiaromaticity with negative resonance energy, whereas C36CH2 anions have aromaticity with positive resonance energy. 反之,C36CH2阴离子因共振能为正值而具有较高的芳香性和稳定性。
The resultant ionized bond can be cleaved by a hemi-heterolysis process, affording a cation and a neutral radical. 生成的离子化键能由半异裂的过程而开裂,提供一个正离子和一个中性的游离基。
A method for the determination of trace cations in the tetramethylammonium chloride was developed by ion chromatography(IC) with conductivity detector. 文章采用离子色谱法测定高浓度四甲基氯化铵中钠、钾和钙金属离子。
Structure of pneumatic material c lamping device and pneumatic system have been introduced with ex-pounding appli cation in a notching press. 介绍对气动压料装置的结构及气动系统,以及气动压料装置在冲槽机上的应用。
Taking the example of the homoaromaticity of cyclooctriene cation and imidazole and oxazole basicity,the essay discusses the application of resonance theory. 文中以环辛三烯正离子的同芳香性和咪唑与恶唑的碱性为例,讨论了共振论的应用。
Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed. 莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。
Binding energy and interaction potential of calcium cation and diazine ring are based on the calculation of all the complexes of optimized structures. 对优化得到的稳定配合物计算了钙离子与二嗪的结合能和相互作用势.
When metal-bearing solution moved along deep faults to cavities or frac tures, the metal cations reated with pyrite and organic matter and precipitated as sulfid... 在构造减压带中,铅锌配合物交代地层中的黄铁矿或被有机质还原而沉淀富集。
The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied. 以强酸性阳离子交换树脂为催化剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应的因素。
The sodium, this became a cation, because it's positive.
钠,这变成了阳离子,因为它是正的。
Crash Course 综合篇
Cations are positively charged and anions are negatively charged.
阳离子带正电, 阴离子带负电。
Crash Course 综合篇
So cations only react with anions to form new compounds.
所以阳离子只与阴离子反应形成新的化合物。
Crash Course 综合篇
Silver is also a metal and is also a cation.
银也是一种金属, 也是一种阳离子。
Crash Course 解剖生理学篇
But they're really just positively-charged cations — like calcium, sodium, and potassium — and negatively-charged anions, like phosphate, sulfate, and bicarbonate.
An ion (/ˈaɪən, -ɒn/) is an atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge. Ions can be created, by either chemical or physical means, via ionization.