Questions tagged [ionic-compounds]

Compounds in which at least some of bonds have ionic character stronger than covalent or metallic. Many compounds called salts are ionic compounds but not all of them.

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Chemically removing rust without leaving any unwanted residues

I have this iron pan that got rusty from not being properly dried. Scrubbing it I was able to get rid of most of the rust, but there's still some I just can't remove. I thought I could chemically ...
Alex's user avatar
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4 votes
1 answer

How to rationalise the coordination number of CsCl versus NaCl?

Question: Suggest an explanation for the coordination number in the $\ce{CsCl}$ lattice being different from those in $\ce{NaCl}$. Standard answer: Caesium ion is larger than sodium ion, hence ...
Lyf's user avatar
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Effect of light on ionic compounds

If I had an ionic molecule which needed $\pu{4 eV}$ to break the ionic bond, a $\pu{7 eV}$ photon is shot at it. If it is absorbed by the molecule and breaks, where does the rest of the energy go?
user1221's user avatar
7 votes
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If copper has 2 valance electrons and sulfur 6, why don't they bind in pairs?

Simple question, the average neutral copper atom has 2 valance electrons, and sulfur 6. Wouldn't the two electrons jump from copper and bind to sulfide? The empirical formula is: $\ce{Cu + S -> ...
David's user avatar
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24 votes
4 answers

Will gaseous ionic compounds be free moving ions?

I knew while learning about electrolysis that if the ionic compound is molten it becomes free moving ions. If that is the case, what will happen if I continued heating till it reaches the boiling ...
Abdelrahman Esmat's user avatar
6 votes
2 answers

Good acid for cleaning marine toilets

Problem: On my boat I have a marine toilet. It is operated with salt water. The problem is, on the interior of the outflow tubing it accumulates some sort of hard grime. I am looking for a good way to ...
ARF's user avatar
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5 votes
1 answer

How to determine stable electron states in ionic and covalent bonds?

I'm working on a program that needs to determine if a bond between two or more elements will result in a stable state. I understand at a high-level how to fill electron subshells using the Aufbau ...
Matt Palmerlee's user avatar
9 votes
3 answers

What is the correct name for this lab technique in crystallization?

Take a glass rod and rub vigorously the wall of the flask, the substance will crystallize out of the solution. Take a fire polished stirring rod and etch (scratch) the glass of your beaker. The small ...
Joseph's user avatar
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18 votes
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Why do Magnesium and Lithium form *covalent* organometallic compounds?

Lithium and magnesium are Group 1 and Group 2 elements respectively. Elements of these groups are highly ionic, and I've never heard of them forming significantly covalent inorganic compounds. Yet ...
ManishEarth's user avatar
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23 votes
6 answers

Are there any ionic amorphous solids?

This question on NaCl crystalization actually got me wondering: are there any ionic amorphous solids? Like ionic crystals are crystalline materials of electrostatically-attracted ions, can ions form ...
F'x's user avatar
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24 votes
4 answers

How does NaCl maintain its crystalline structure?

My understanding is that $\mathrm{NaCl}$ is an ionic compound, in which $\mathrm{Cl}$ becomes (effectively) $\mathrm{Cl^-}$ and $\mathrm{Na}$ becomes $\mathrm{Na^+}$. So I understand why I would get a ...
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