Bonds Definition and 203 Threads

In order for a diamond to oxidize, do the covalent bonds have to be broken? What would happen if I put the diamond in an oven heated to 150 degrees Celcius? Would the reaction start and after some time the stone would disappear?

The problem is that I am not sure how the ##NNN## portion of the molecule fits together. After looking on Wikipedia, it seems the structure is I am not sure about the reasoning that leads one to the above (resonant?) structures. Let's call the leftmost structure A and the rightmost structure...

When you study physics deeper you learn there are 4 types of atomic forces that represent all other in the atomic level (i.e. electromagnetic force, gravitational force, strong nuclear force, weak nuclear force). I always try to see how they manifest in the the atomic interactions. For example...

Because when I have two carbon atoms, they create a single bond, so their two electrons are in one boding orbital, but I have also one anti-bonding orbital here. And when the electron excitates from ##\sigma## to ##\sigma^*##, how can the bond between the carbon atoms exist? It has to disappear...

Does solubility depend on the polarity of the molecule or on the number of hydrogen bonds that are formed with water? For example: CF4 can form hydrogen bonds, but it's not polar. Glucose Is Polar e can form hydrogen bonds. How can I predict solubility? Thanks

Consider for example Carbon Dioxide. Oxygen is more electronegative than carbon so should obtain the "lion's share" of the paired electrons in the double bonds. But (as I see it anyway) the oxygen atoms on either side of the central carbon "assist" the carbon atom to maintain an even share of...

Hello, when reviewing the types of chemical bonds i was a little bit confused about van der waals interactions, in the definition we talk about momentarily disproportion of electrons that provoke a dipole , and then i read that also include hydrogen bonds . I am a bit confused about van der...

I am sure this is an elementary question; I'm just trying to clarify some points that were poorly explained to me years ago in secondary school. I know that a full answer would involve solving Schrödinger's equation etc., but keeping this on the level of valence electrons,...) I was confused by...

I recently had to do some IR specs of some inorganic compounds (technically organometallic), and I found the literature for inorganic bonds lacking, like the wavenumber of metal-oxygen, metal-carbon bonds etc. Is there a data book on this?

I was doing some research into quantum entanglement but it is never well described how you break the bonds once they are formed does anyone have any expertise in this area on how to break quantum entanglement bonds? The best that I can understand is the bond is broken when interaction with the...

I know in RVB theory that neighbouring Copper atoms form singlet pairs via the superexchange "force". Upon doping with holes, these neutral singlet RVB pairs become mobile and charged and are able to superconduct. I know that the resonating valence bonds are in the copper 3d(x^2-y^2) orbital and...

I need to calculate H-bonds in a specific direction of a C-alpha atom of a protein. And, I need to calculate that from a PDB file. Can anyone give me a general guideline/direction/idea regarding how to do that? N.B. I need to write a python program.

Atoms bond because compounds are more stable or have less energy than individual atoms. Interatomic potential energy depends with distance of atoms and there is a distance at which potential energy has minimum. This distance is a length of the bond. When forming covalent bonds, why is it...

Is a "double" ionic bond (the transfer of two electrons) like in MgO any stronger (or really any different, structurally etc.) than a "single" ionic bond (the transfer of one electron) like in NaCl?

Is there a general rule for a crystal structure how many bonds each atom in the crystal lattice will make ?For example Si has a face centered cubic structure so it makes 4 bonds regardless of the fact Si has 4 valence electrons?

I see the top version used everywhere. But isn't the bottom version better? Because the top version makes it seem like H2 bonds with the C to its right and the other H2 bonds with the N. Whereas the bottom version shows the bonds correctly. Should I draw it like the top version and stop annoying...

Right now we are learning about the Lewis definition of acids and bases. I don't get the clear difference between co-ordinate covalent and ionic bonds. For example, AlCl3 is listed as a co-ordinate covalent bond because experiments show that it behaves like a covalent molecule. Why can't it be...

The ## {H_2^+}## molecule consists of two hydrogen nuclei and a single electron.What kind of molecular bond do you think holds this molecular together? Explain.

Okay guys, i had a question. Now in many indian publications and lecture rooms they say that we can represent HNC and isocyanides with a dative(coordinate) bond, but when i looked it up online, almost no one used such a structure. Wikipedia, Quora, Chem libre texts, etc, they describe it having...

So a photon is absorbed into and emitted from electrons, causing the electrons to jump energy levels around an atomic nucleus. And enough energy absorbed into the electron will cause the electron to break from the atom altogether. My question is, where does this energy that enters the...

Homework Statement I learned that Covalent Bonds form between different specific atoms ( with similar electro-negativity ) with electrons. However, I wondered what type of bond would form between the different atoms if they had no electrons? Also , if I have 2 atoms with similar...

Homework Statement What is the maximum number of covalent bonds formed by carbon with nitrogen? A)2 B)3 C)4 D)1 Homework EquationsThe Attempt at a Solution I have not come across a single compound which has more than 3 C-N bonds. But my book is giving the answer as 4. Now, I am not sure...

Homework Statement Using the heats of fusion and vaporization for water, calculate the change in enthalpy for the sublimation of water: H2O(s) --> H2O(g Using the delta H value given in Exercise 24 and the number of hydrogen bonds formed to each water molecule, estimate what portion of the...

Are there any elements or molecules that exchange greater than 4 electrons per bond? I just thought of something off the wall and have no idea what to even google.

How strong a long chain of carbon carbon double bonds will be compared to nano tubes? H>c=c=c=c=c=c=c=c=...=c=c=c=c=c=c=c=c=c=c=c=c<H

This might be a very basic question. What are the elements that are in the world of creating covalent bonds, distinguishing themsevels from the elements that never form covalent bonds? Many thanks!

I am a novice and new to bonding and there are a few clarifications I need. 1) Does a single covalent bond always mean a sigma bond? 2) Does a double covalent bond always mean 1 sigma and 1 pi? 3) And does a triple covalent bond always mean 1 sigma and 2 pi bonds?

I would like to clarify this particular question. According to the answer key, the answer is D. However, I argued to my friend that there may be an error in this question. The arrow is pointing toward a carbon atom so the question might have been " The indicated carbon atom is:". But if...

Cheers everyone. Can the amount of water molecules added to a solution impact the formation of a salt with its ions mainly bonded through hydrogen bonds with electrostatic like behaviour? Let me give Some background to the question first: I am studying the precipitation of Phosphorous(P) as...

I know that the two are different thing, that vdW appears in inert gas crystals and alike while hydrogen bond bonds molecules of water. My question is, how does the potential look for hydrogen bond? For vdWaals we have the two terms proportional to 1/R^6 that describes attraction and 1/R^12...

I am curious as to why proton-proton, neutron-neutron bonds are preferable in the nucleus; the pairing term in the semi empirical mass formula for the nucleus comes from the fact that pp and nn bonds are more stable in the nucleus (higher binding energy or more negative potential energy, however...

Homework Statement http://i.imgur.com/HunOeH0.png Homework Equations MO model The Attempt at a Solution as far as i know, number of pi bond is equal to 3 - the "power" of p (the hybridized bond formed) the answer "4" is only calculated from the 4 elements' bond in part b, so why the central...

I'm doing a computational lab about binding energy and comparing different methods of solvation. What does positive and negative binding energy signify? Half of the places I look say the more positive the binding energy the stronger the interaction between the molecules. Other places say the...

My previous Chemistry teacher while teaching IUPAC nomenclature said that the double bond is always given greater priority over the triple bond and the numbering of the carbon atom chain is done in such a way that the double bond gets the lowest possible number while my present Chemistry teacher...

A group 2 metal always forms 2+ ions, since the second electron is harder to remove how come you don't find 1+ ions of these in ionic compound formations, How does it always manage to lose both outer electrons? So it takes a certain amount of energy to break a bond, how does water molecules...

can H2s form hydrogen bonds i read that H2s can , but I'm not so sure about it .

Hi,I wanted to know what exactly the free rotation of bonds in alkene means in the cis-trans isomerism?[

So in general chemistry we learned about covelant bonds and ionic bonds and such, but recently I learned that electrons have wave-particle duality and that many things I learned in general chemistry are not necessarily completely wrong but oversimplified (such as Bohr Model). So how does quantum...

There is no difference in electronegativity, so how do bonds form? Take for example C-C, they both want 4 electrons for a full valence shell to become more stable - they meet each other, but how come they share 4 electrons? There is no difference in electronegativity for them to attract each...

"When we supply bond energy to two molecules that have bonded, the potential energy of the molecules increase causing the molecules to break bonds." -Is this the correct explanation regarding bond energy? If not, kindly explain this process to me, it's very confusing.

Homework Statement Multiple choice:[/B] In which of the following processes are covalent bonds broken? a) solid sodium chlroide melts b) bronze melts c) sucrose dissolves in water d) solid carbon graphite sublimes e) solid carbon dioxide sublimes Homework Equations none The Attempt at a...

I've been looking all over the internet, can calcium and iron form an ionic bond, Gold and Radium, Sodium and Tin. If those elements happened to run into each other. Also, another thing I don't understand is why don't the atoms in my hand bond with atoms on the wall when they come into contact.

If there was a bond in the 2p vs 3p subshell, which would be stronger? Taking into consideration that they are in the same group Thanks

Homework Statement Hello! Here is the quote of the exercise: Excessive exposure to sunlight increases the risk of skin cancer because some of the photons have enough energy to break chemical bonds in biological molecules. These bonds require approximately 250–800 kJ / mol of energy to break...

Guys, I'm just thinking about how Nitrogen makes two bonds if it has 3 electrons in 2p orbital. I made a judgement that one electron from 2s orbital will transfer to one of 2p orbitals then there are two 2p orbitals which can make a bond? Is this correct or there is other mechanism?

Hello Physics Forum, I have a quick question for the scientific community that I am unable to find online (likely because the term doesn't exist), but is there are term for the act of an electron moving from one orbit into another when binding two elements? Also I have a very minimal...

Hi there, I'm studying for IGCSE Chemistry and I'm a little confused with Bonding/Molecules. My textbook says: "Molecules are held together by covalent bonds" I'm a little confused by this as I thought a molecule was formed when two or more atoms (same or different elements) join together...

I believe I can explain why there is energy needed to break intermoleculares bonds and getting into a gas or liquid, but the other way around confuses me. Bonds have potential energy associated to it, so It's needed work to break the bonds, because we would be trying to move a molecule away from...

like in NH3, maximum number of Hydrogen bonds is 4 and general is 2 ... is it that in any molecule, max number of hydrogen bonds=Hydrogens with +∂ change + lone pairs with -∂ charge (enough polarization by F or O or N and chelated with Cl) now, if that was correct, hydrazine nh2-nh2 forms 6...

I came here from https://www.physicsforums.com/threads/i-dont-understand-how-hcl-is-not-a-ionic-bond.449393/ where replies are no longer allowed. I wanted to reply to suggest a few things: High school students who like chemistry are far smarter than anyone will give them credit for. High...