结果1 题目 The groups that consists of oxygen and carbon joined by a double bond is called the carbonyl group. If the carbonyl group is at the end of the molecular skeleton it is called a(n) 相关知识点: 试题来源: 解析 aldehyde. 反馈 收藏 ...
4.One atom of oxygen is linked to the nitrogen atom by a double bond.一个氧原子以双键与氮原子相连。 5.Compounds containing two double bonds are called dienes.包含两个双键的化合物叫做二烯烃。 6.Studies on the Reaction of the Rearrangement of Non-Conjugation Alkene by Microwave;微波辐射下非共...
The π bond on the double bond is not as strong as the sigma bond. Therefore, the π bond is easier to break and undergo various chemical changes when chemical reactions occur. 答案:正确 点击查看答案解析手机看题 你可能感兴趣的试题 单项选择题 直流电动机的额定功率指( )。 A.转轴上吸收的机...
. . The length of the bond indicates it has properties between a single bond and a double bond: but it is more close (0.05 Å) to being a double bond than that of a single bond (0.17 Å).First Class
IR results of the compounds (solid and solutions), 21P NMR data and 15N NMR of a 15N labelled compound, which yielded a 103Rh 15N coupling constant of 15.5 Hz, show that in the second isomer the N-sulfinylaniline ligand is probably bonded to the metal atom via the π-N S bond. The...
英 un.双螺旋;双股螺旋 网络两个螺旋线的故事 复数:double helixes复数:double helices 权威英汉双解 英汉 英英 网络释义 double-helix n. 1. 双螺旋(脱氧核糖核酸的结构)the structure of DNA, consisting of two connected long thin pieces that form a spiral shape...
16 In addition to the straight chain/branched chain isomerism shown by the alkenes, another type of isomerism is shown by the alkenes called geometrical isomerism. Since the double bond part of the molecule is planar and the carbon atoms are joined together twice, this part of the molecule ...
For those who want to finance genuine tax reform, there are genuine loopholes that could be eliminated or curtailed, most notably the fringe benefits exclusion and the muni-bond exemption. P.S. The fringe benefits exclusion is such bad policy (contributing to third-party payer) that I even wr...
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Twenty micrograms of total RNA from adult sexed mosquitoes was isolated as described above and blotted onto nylon membranes (Hybond NX - Amersham Pharmacia). Hybridizations were performed at 42°C overnight in a buffer of 50% formamide, 6× SSC, 5× Denhardt, 1% SDS and 100 μg/ml salmon...