Double Bond | Overview, Definition & Examples - Lesson
2023年11月21日 · Explore double bonds. Learn the definition of a double bond and see how double bonds are formed. Discover examples of molecules that contain double...
Why does sulfate have this structure? - Chemistry Stack Exchange
Sulfate is 4 single bonds. The bond length difference is due to the fact that the sulfur carries extra charge, as does the oxygens. This ionic like bond is of course going to be shorter than more neutral forms of S-O. Further, why would two double and two single hybrid bonds average to be the same length as a double bond?
Why do double bonds cause kinks in fatty acid chains?
2019年2月3日 · If they are unsaturated, however, double bonds are introduced, and these double bonds introduce kinks into the structure of the fatty acid molecule. In a different question on this site, it was suggested that the reason why double bonds cause kinks to form is that they interrupt the zig zag shape of the molecule.
How many bonds can nitrogen form? - Chemistry Stack Exchange
2017年8月12日 · $\begingroup$ while esoteric examples with high numbers of "bonds" are fascinating, the OP was asking about the far more basic case of why nitrogen can form 4 covalent bonds. For that question, this answer probably just confuses (though it would be a good one to a different question). $\endgroup$
Does a C=C double bond donate electron or withdraw it?
2019年1月14日 · We can also seem to qualitatively derive the rule of thumb that the allylic double bond donates or withdraws based on the "needs" of the adjacent site. If it is electron-deficient, there would be donation from the double bond. If there is a site of high electron density, there would be withdrawal towards the double bond.
How exactly does UV light break bonds? - Chemistry Stack Exchange
2021年6月27日 · Ultraviolet light can also dissociate relatively strong bonds such as the double oxygen bond ($\ce{O=O}$) in molecular oxygen ($\ce{O2}$) and the double $\ce{C=O}$ bond in carbon dioxide ($\ce{CO2}$). My question is, how does this process occur? How exactly does UV light break bonds?
organic chemistry - Why does NaBH4 reduce double bonds …
2013年11月18日 · If there is a double bond conjugated with the carbonyl group, $\ce{LiAlH4}$ doesn't reduce it, leading to an allylic alcohol. However, using $\ce{NaBH4}$, some of the fully reduced alcohol will also be formed.
Skeletal formula for carbon with two double bonds
2016年10月2日 · However, according to the Graphical Representation Standards for Chemical Structure Diagrams (IUPAC Recommendations 2008), a carbon atom with two double bonds should be explicitly labeled: (…), any carbon atom with two identical collinear bonds should always be explicitly labeled, to remove the possibility of the two bonds being ...
Lines on inside of hexagonal shapes of structure diagrams
Any 'spare' bonds are where a C-H bond is. So it can be rewritten like this: HOWEVER, when it comes to a benzene ring (the hexagon), you do not simply have alternating single and double bonds. In fact you have what is known as a 'resonance structure', where the electrons/bond is shared around the entire ring.
organic chemistry - Does a double bond or a triple bond have a …
2016年10月15日 · If a choice remains, preference for low locants is given to the double bonds. In this case, the two possible numbering schemes lead to the same locant set of (1,4). However, according to the italicised portion of the quoted text, the double bond is considered to have the higher priority, and the name would correctly be pent-1-en-4-yne .