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Questions tagged [covalent-compounds]

For questions about covalent compounds - which are compounds in which all intermolecular bonds between atoms are considered mostly covalent - have a stronger covalent than ionic or metallic component. This tag is not to be confused with [bond].

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Do any molecules contain a phi bond?

In chemistry, phi bonds (φ bonds) are covalent chemical bonds, where six lobes of one involved atomic orbital overlap six lobes of the other involved atomic orbital. I researched this question a lot; ...
Nitrogen-8's user avatar
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1 answer
76 views

Solubility of alkanes in benzene [duplicate]

According to “like dissolves like” rule of thumb, a homogeneous (true) solution forms between: polar solvent and polar (ionic) solutes; non-polar solvent and non-polar (covalent) solutes. According ...
Adh.'s user avatar
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1 answer
75 views

How would the regions of this graph showing percentage of ionic character, be classified? [closed]

Looking here at this website - Omnicalculator, at the section of the website for calculating percentage of ionic character. Omnicalculator - Percentage Ionic Character They let you choose elements and ...
barlop's user avatar
  • 503
-2 votes
1 answer
60 views

Is polarizing power related to solubility, melting point of a compound? [closed]

It is stated in this websites that "It is found that the greater the possibility of polarization, the lower is the melting point and heat of sublimation and the greater is the solubility in non-...
Seiji's user avatar
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1 vote
0 answers
37 views

Why is INDO suitable for covalent systems despite neglecting two-center two-electron integral?

I do not have a good basis understanding of basic chemistry so I am hoping to obtain an explanation that is as narrow as possible. My current understanding of the semi-empirical method INDO is that ...
Physkid's user avatar
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2 answers
145 views

How does the same electron orbit both atoms in covalent bond? [closed]

During elementary school chemistry, when they teach about the covalent bond, they say that both atoms need the electron but they can't lose or gain them so they share it. And for instance they show us ...
Yug Ahuja's user avatar
-1 votes
1 answer
161 views

Why are different Aluminium valencies observed from NMR and what logic can be used to normalise molar ratios of different valency atoms?

Question 1: I've observed different chemical shifts in 27Al Nuclear Magnetic Resonance (NMR) spectra of commercial aqueous sodium aluminate, indicating the presence of both trivalent [Al(III)] and ...
Hendrix13's user avatar
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-1 votes
1 answer
408 views

Is mercury(I) chloride ionic or covalent?

Is mercury(I) chloride ionic or covalent? If I look here, I see arguments either way. The article doesn't mention anything about a cation or an anion. Some might think there's two mercury ions each 1+ ...
barlop's user avatar
  • 503
-5 votes
1 answer
40 views

How's the formula mass of a molecule calculated? Is it the mass in it's empricial formula or molecular formula? [closed]

Like glucose, butane and benzene. How would you calculate their formula mass? Would you calculate it as the mass of their empricial formula or their molecular formula (basically same as molecular mass)...
Chemistry Boi's user avatar
3 votes
1 answer
191 views

Do covalent networks experience dipole-dipole forces?

After my research, I have learnt that dipole-dipole forces only exist between polar covalent molecules. I am aware that covalent networks are not molecules, thus they obviously cannot be classified as ...
zxcv's user avatar
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105 views

How does the canonization method of RDKit operate when valence is exceeded?

RDKit's canonization method1 allows nitrogen to bond with 3 hydrogen atoms and one oxygen atom ...
nightcod3r's user avatar
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1 answer
111 views

Formation of tetrafluoroborate using VBT and hybridisation

How can the formation of $\ce{BF_4^-}$(Boron is $\ce{sp^3}$ hybridized) be explained using VBT and Hybridization? So far, I understood that one electron from s orbital gets excited and jumps into a p ...
Mathlover12345's user avatar
1 vote
1 answer
94 views

Does I2 form coordinate covalent bond with PI3 in PI3.I2 (PI5)

As PI5 is uncertainly stated as the combination of PI3 and I2. There are suggestions that phosphorus donates its 3s electron pair to molecular orbital of I2 or I2 donates its electron to 3d orbital of ...
Shira's user avatar
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-4 votes
1 answer
180 views

Query regarding covalent bonding

Why don't covalent bonds result in the atoms involved in the bond being charged? Let's take the Chlorine/Cl2 molecule as an example. So each Chlorine atom in the Cl2 molecule has 7 valence electrons. ...
LuciferP's user avatar
-3 votes
1 answer
161 views

Why do stable covalent compounds react with water [closed]

I am curious why a discrete covalent molecular substance, say CO2, would react with water to form an acid, what happens in such a reaction? I'm assuming it has something to do with disassociated ions ...
Gamaray's user avatar
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2 answers
278 views

Do two atoms 'participating' in a single covalent bond rotate in only one direction, without rotating the entire molecule?

A Biology textbook stated that, "single bonds allow the atoms they join to rotate freely about the bond axis". This definition is not clear enough for me to answer the question, "do two ...
Growing6884's user avatar
1 vote
0 answers
73 views

How can atoms get very close together even without direct covalent bonds between them? [closed]

Generally speaking, because of the Pauli exclusion principle, it’s difficult for the electron clouds of two atoms to overlap unless they are covalently bound together. The degree of overlap can be ...
哲煜黄's user avatar
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1 vote
1 answer
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Compare the covalent character of ZnCl2, CdCl2,HgCl2

I want to know how to arrange the covalent character of ZnCl2, CdCl2, and HgCl2. By Fajans' rules, We know that a smaller cation equals higher covalent character. We also know that atomic size ...
Man's user avatar
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3 votes
1 answer
209 views

Covalent character of bonds in uranium hexafluoride

In one of the questions in a qualifying exam it said that $\ce{UF6}$ is a "covalent compound". This fits the physical properties of the compound well, e.g. low boiling point, existence as ...
Jono94's user avatar
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-1 votes
2 answers
971 views

Why does carbon dioxide forms simple molecular structure, but silicon dioxide forms giant covalent structure? [duplicate]

I was wondering about this in class, drawing the structures of carbon dioxide and silicon dioxide. Carbon and silicon are both in Group 4/14, but coming up with oxygen, one can only form a simple ...
luma's user avatar
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0 answers
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Covalent compounds-What are the reasons for attraction between atoms to be strong...? [duplicate]

In general, most of the covalent compounds are known to have low boiling point and melting point due to the weak Van der Waals forces between molecules in them, requiring lesser heat to break the bond....
Imbecile brat's user avatar
-4 votes
1 answer
122 views

If sulfur is directly below oxygen on the periodic table, why isn't SO the most common sulfur oxide? Instead of third, behind SO2 and SO3? [closed]

Chalcogen like oxygen and sulfur want to 'grab' (or share) two electrons to get to eight, if possible, or maybe 'give up' (or share) six, if necessary, to again get to eight... Right? So, why is ...
Kurt Hikes's user avatar
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2 answers
766 views

Why covalently bonded molecules have strong bonds within the molecule?

While studying the chapter carbon and it's compounds in NCERT page 60 I came across this line: Covalently bonded molecules are seen to have strong bonds within the molecule but intermolecular forces ...
Akhil Kumar Singh's user avatar
-4 votes
2 answers
507 views

Why do non-metals not form Ionic bonds(Ti-C, Sc-P) and instead form covalent compounds? [closed]

Is there something like, "sharing or gaining electrons gets harder", or is there something that lays hidden from common sight? I am looking for a High-School Level Answer, pls something ...
Aniket Gamer's user avatar
0 votes
2 answers
167 views

Can there be a molecule where every atom is covalently bonded to every other atom? [closed]

I was wondering if muliple atoms could bond in a ring, but share a pair of electrons with every other atom in the molecule so that every atom is connected to every other atom. Would it be possible for ...
minwom's user avatar
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4 votes
2 answers
530 views

Why aren't ionic crystals stronger than diamond?

If ionic bonds are stronger than covalent bonds, then why aren't ionic crystals stronger than diamond, which is bonded by covalent bonds? Diamond has tetrahedral structure with carbons forming ...
Jeeth2006's user avatar
-2 votes
2 answers
934 views

Why are group 13 compounds in the +1 oxidation state more ionic than those in the +3 oxidation state?

I know that for group 13 metals in the p block, the stability of +1 OS is generally more than the stability of +3 OS as it is energetically not favourable to attain the higher OS of +3 and such ions ...
user avatar
3 votes
1 answer
213 views

Can two noble gases attract each other?

If two hydrogen atoms are far apart, they have no effect on one another. But as they are bought closer together, they begin to excerpt an effect. The two nuclei, having the same positive charge, repel ...
iwab's user avatar
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-1 votes
1 answer
316 views

What are the Ionic Properties of Co-ordinate Covalent Bonds? [closed]

In my 10th grade book, it says that A coordinate bond has properties of both covalent and ionic bonds. Therefore, it is also called dative or co-ionic bonds. I understand that it has properties of ...
AltercatingCurrent's user avatar
0 votes
1 answer
223 views

If bond types are in reality intermixed, how come different bonds form completely different structures?

According to the bond triangle, compounds don't exist as solely ionic or solely covalent, but rather have ionic, covalent, and metallic character to them. So each bond type is connected and similar in ...
Timothy Estrada's user avatar
1 vote
1 answer
926 views

What exactly is giant covalent molecule?

What exactly is the definition of "giant covalent molecule"? All sources online don't give a definition but instead, allude to properties of examples of giant covalent molecules (such as ...
Tham's user avatar
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0 votes
0 answers
37 views

How big a role does electron repulsion play in regard to the bond length of a covalent bond? [duplicate]

In a covalent bond, there are several forces acting together to determine the bond length. Electron-electron repulsion increases the bond length. Proton-proton repulsion increases the bond length. ...
Dan L's user avatar
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4 votes
2 answers
512 views

Does lithium form ionic hydride? [duplicate]

It is stated in my chemistry textbook that lithium indeed forms lithium hydrides. However, significant covalent characters could be found in lithium hydrides (like least reactivity). But in some other ...
MsBonniePython's user avatar
-3 votes
1 answer
230 views

Comparing covalent characters of two halides of group 15

Which is more covalent : NCl3 or PCl5 and why? This question was asked on a test, and the given answer was NCl3. Shouldn’t PCl5 be more covalent since pentahalides are more covalent than trihalides?
Shinomiya's user avatar
0 votes
0 answers
101 views

Why does steam store large amounts of energy?

We all know that steam can be used to perform mechanical work and steam has a high capacity for energy storage. But why does steam have such high energy capacity? I tried searching for answers on the ...
Somanna's user avatar
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-2 votes
1 answer
353 views

Why can covalent compounds dissolve in organic solvents? [closed]

Why can covalent compounds dissolve in organic solvents? I researched about it a little and I found an article which said: "Mostly all organic compounds are non-polar in nature. Also, covalent ...
user310588's user avatar
4 votes
3 answers
134 views

How are compounds within a complicated mixture detected?

I was reading an article about an independent pharmaceutical watchdog group called Valisure which recently released a report stating that they found Benzene, a toxic substance, in many bottles of ...
CodyBugstein's user avatar
-2 votes
1 answer
161 views

Lone pairs of electrons and covalent bonding [closed]

Every time I saw a covalent bond structure, I notice that there are always lone pairs or no electrons left in the outer shell of the atoms. Is it compulsory for covalent bonds to have lone pairs or no ...
chittaranjan rout's user avatar
0 votes
0 answers
25 views

How do bond electrons covers both atoms in covalent bond? [duplicate]

I want to know how bonding electrons behave when they have to cover for both atoms. Electrons can spin around only one atom right? If so, then what happens when a covalent bond forms? Let's say we ...
Atai Rabby's user avatar
-1 votes
2 answers
128 views

Is this analogy right? [closed]

Is my logic correct in this case ? Since the formal charge represents the charge the element possess in a covalent compounds, is it right to say that formal charge is the equivalent term for covalent ...
Parvathy's user avatar
2 votes
0 answers
290 views

Is Polyethylene Glycol always derived from Ethylene Glycol? If not, how does it differ?

I have heard Polyethylene Glycol is derived from Ethylene Glycol, so was doing some research to see how they differ and found this. Now this states that: Polyethylene glycol is produced from the ...
Brett's user avatar
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4 votes
0 answers
74 views

Dielectric constant for gases possessing van der Waals forces [closed]

I've learnt that water can dissolve ionic bonds because it possesses a high dielectric constant. In the cases of covalent compounds (especially the non-polar covalent compounds), where the molecules ...
Parvathy's user avatar
2 votes
1 answer
2k views

How can I know which molecule is more stable when bond order it's equal?

So, I was wondering, I have these molecules $\ce{O^+2}$, $\ce{O^-2}$, $\ce{O2}$ and $\ce{C^+2}$. When I try to find their bond order and their magnetic nature I get this: $\ce{O^+2} = \frac{1}{2} \...
Adolf's user avatar
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6 votes
1 answer
2k views

Does boron form compounds without covalent bonds?

I have read that boron, due to the very high sum of its first three ionization energies, it is not able to form its +3 ions, and thus it generally forms only covalent compounds. But in a popular ...
Prajwal Tiwari's user avatar
-1 votes
1 answer
499 views

How to determine what covalent compound a substance is?

I have been given a substance which is unknown in my class. The substance is white in colour and is in a powder form. I have conducted a few tests and have found out that the substance is a covalent ...
Shack's user avatar
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1 vote
0 answers
37 views

What kind of bond exists between a metal and a non-metal with a difference in electronegativity of less than 1.7? [duplicate]

I'm being taught that the kind of bonds that exist between elements depends on the electronegativity difference between the elements. A difference less than 1.7 is covalent and a difference higher ...
Sam's user avatar
  • 11
-2 votes
1 answer
490 views

How is dipole moment of ammonia less than sulphur dioxide? [closed]

Sulphur dioxide has only two bonds at 180º so shouldn't the dipole moment of molecule be 0 and as ammonia has 1 lone pair so it's dipole can't be 0 so how Sulphur dioxide has more dipole moment than ...
Mihira's user avatar
  • 7
0 votes
1 answer
674 views

If Electronegativity of Cl is greater than H2 then why is the bond angle of Cl2O greater than H2O? [duplicate]

If Electronegativity of Cl is greater than H2 then why is the bond angle of Cl2O greater than H2O? Cl2 has more EN than H2 and size of Cl2 is more than H2 but if we go according to EN then more angle ...
Mihira's user avatar
  • 7
0 votes
1 answer
138 views

Despite being less reactive,alkanes are highly flammable [closed]

I read in my book that alkanes are saturated compunds and the valencies of carbon are satisfied by single bonds. I knew that propane and butane are highly flammable and could cause explosion. My ...
Curious's user avatar
  • 11
1 vote
1 answer
3k views

The order of increasing covalent nature in group 12 (Zn, Cd and Hg)

Suppose $\ce{Zn}$, $\ce{Cd}$ and $\ce{Hg}$ were to form a bond with the same element; say $\ce{ZnCl2}$, $\ce{CdCl2}$ and $\ce{HgCl2}$ Then which of the compounds would be showing most covalent ...
Adil Mohammed's user avatar

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