Inorganic compounds generally do not have C-H bonds, while organic compounds do have such bonds. The distinction between inorganic and organic chemistry, however, is far from absolute.

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some doubts in Bent's Rule [duplicate]

"The central atom projects the hybrid orbitals of greater p character towards the more ionic bond and greater s character towards the more covalent bond.----explain this and please say in what sense " ...
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17 views

Discussion about Bent's rule [duplicate]

Can we say:More electronegative substituents prefer hybrid orbitals having more s character and more electropositive substituents prefer hybrid orbitals having more s character? If it is correct then ...
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0answers
11 views

Potassium or sodium bicarbonate? [duplicate]

Asking again because my original post was marked duplicate of a question about different compounds and not answered. How would I go about determining whether a sample of an unknown substance is ...
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0answers
11 views

Detection of foreign elements using Ca or K instead of Na [on hold]

Is it possible to use calcium or potassium in place of sodium in detection of foreign elements? Please add you approach here.
2
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0answers
16 views

Generating Precipitation Diagrams with CompuTherm Pandat

I am trying to develop precipitation diagrams for an Ag-Cu-Sn alloy to figure out the kinetics involved using the CompuTherm Pandat Software (Demo Version). The precipitation diagrams need the ...
4
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1answer
37 views

N2O production vs air distillation

After producing nitrogen by distilling air, how is that nitrogen used with the oxygen to yield nitrous oxide ($\ce{N2O}$)? I see $\ce{N2O}$ available in different purities from various suppliers, but ...
4
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1answer
36 views

Sodium Polysulfide production from NaOH and Sulfur

Does the sulfur also oxidize the $\ce{OH-}$ radicals after the $\ce{Na2S4}$ chains form? Something like this: $$\ce{9S + 4NaOH -> 2Na2S4 + SO3 + H2O}$$
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22 views

Hybridization of oxygen in Nitrate ion and the location/bond of nitrogen's lone pair

I have tried to apply the rules and basics that I learnt so far. But I am confused about the hybridization of oxygen atoms which are making the single bond in nitrate ion. Following are the steps I ...
13
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0answers
101 views

Is there any experimental evidence for OClF5?

On page 88 and 89 of this document, the author laments that $\ce{OClF5}$ has still not been discovered. He says it would be "just about the ultimate possible storable oxidizer" (for rockets). (Note: ...
7
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1answer
56 views

Ag-Sn-Cu Phase diagram to formulate homogenization temperature / duration

I am working on Ag-Sn-Cu alloy phase diagram to figure out the best temperature / duration to homogenize the alloy (annealing). The %age of elements in the alloy are Ag - 40 % Cu - 27.8% Sn - 32.2 % ...
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1answer
42 views

Separating nickel coin into copper and nickel components

I'm trying to create a high school level lab in which we separate the metals in an alloy. The objective is to understand and apply standard reduction potentials, and also to do some extra redox ...
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0answers
12 views

Why is lithium plating irreversible in li-ion cells?

Several sources (1, 2) suggest that charging Li-ion batteries in low temperature conditions result in Lithium plating. This seems pretty logical since low temperature reduces ion mobility, and ...
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1answer
36 views

Thermal decomposition of mercury thiocyanate

A video on YouTube shows the thermal decomposition of mercury thiocyanate. A strange thing I've observed is that $\ce{Hg(SCN)2}$, which is the reactant, is a white powder and the product is a ...
2
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0answers
36 views

Potassium bicarbonate or sodium bicarbonate [duplicate]

How would I go about determining whether a sample of an unknown substance is either potassium bicarbonate or sodium bicarbonate (given that the sample is one or the other)?
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0answers
20 views

Is there a way to find the kinetics data for the strong acid weak base reaction?

I am layman of chemistry. Latterly, I am asked to do an mathematical optimization task for a bio-chemical process, which contains a conditioning step to neutralize the sulfuric acid using ammonia ...
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1answer
153 views

Photoconductivity of Selenium

Selenium is a good conductor of electricity in presence of light. This phenomenon is called photoconductivity. How does this phenomenon occur? Are there any other elements or compounds in which this ...
4
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1answer
40 views

Chemical staining

I am a geology student completing a project on chemical staining and was after some chemistry help on some of the reactions taking place. I am using various different stains to identify carbonate and ...
2
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1answer
117 views

Stability of beryllium carbonate

Beryllium carbonate is reported to be unstable under normal conditions and should only be kept in a atmosphere of $\ce{CO2}$. Why and how this stability is maintained? Why does this compound decompose ...
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1answer
56 views

Ignition of concrete and sand by chlorine trifluoride

Concrete and sand are highly unreactive to most of the chemical attacks. But chlorine triflouride is so dangerous that it will ignite concrete, sand and other fire retarding substances. Which property ...
3
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1answer
212 views

Why does Zinc sulphide glow?

Zinc sulphide is used in road signs because when light from cars hit the road signs, it glows. What actually is the reason for the glowing of road signs (actually glowing of $\ce{ZnS}$) ?
2
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1answer
30 views

Difference between catenation and allotropy

Can anyone tell me what the difference between catenation and allotropy is? I would like the basic explanation.
2
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1answer
43 views

Covalent Bonding in odd electron sharing molecules

Why in odd electron sharing molecules (like NO ) the bond containing 3 electrons is considired to be half covalent bond?
5
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1answer
195 views

Existence of Deuterium peroxide

Does deuterium peroxide exist? Wikipedia has no reference. Also, the sites for delivery of chemicals like "Pubchem" or "Chemspider" have no reference. In my book, a preparation of $\ce{D2O2}$ is ...
2
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0answers
39 views

How to learn chemistry at home? [closed]

I'm simple man who doesn't know much about anything. I just enjoy my life. Lately I like chemistry a lot. I want to learn chemistry at home. How do you recommend I do it? Do i need to do chemical ...
3
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1answer
162 views

Contact explosion of nitrogen triiodide

Nitrogen triiodide, on slightest physical contact, explodes to evolve dense purple fumes of iodine. Why does this phenomenon occur? video link - https://www.youtube.com/watch?v=2KlAf936E90
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23 views

If both Nitric acid and Nitrate ion are stabilised through resonance, what makes Nitrate ion more stable in aqueous medium?

If both Nitric acid and Nitrate ion are stabilised through resonance, what makes Nitrate ion more stable in aqueous medium? Can the same argument be applied to Nitrous acid and Nitrite ion in aqueous ...
3
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1answer
25 views

Solidification of sodium polyacrylate

Sodium polyacrylate is a white powder with a characteristic odor. But when we add water to this powder, instead of forming a aqueous solution , it instantaneously solidifies and forms more amount of ...
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1answer
19 views

Preparation of sulfuric acid through Contact process

In the preparation of $\ce{H2SO4}$ through the Contact process, $\ce{H2SO4}$ is added to hot sulfur trioxide to form oleum. This oleum is then diluted by adding water to form $\ce{H2SO4}$. ...
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2answers
80 views

Number of atoms in NaCl

Consider this picture of an $\cf{NaCl}$ unit cell: It appears to show 14 $\cf{Cl-}$ ions and only 13 $\cf{Na+}$ ions. Given that discrepancy, how is table salt balanced for charge? Why isn't ...
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1answer
22 views

Formation of nitride and azide by group 1 elements

What property of lithium makes them forms the nitride, lithium nitride $\ce{Li3N}$ whereas the other group 1 elements forms the azide, like sodium azide and potassium azide - $\ce{NaN3}$ and ...
5
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0answers
31 views

Carbides of different elements

What property of the elements makes them forms different types of carbides like: $\ce{Be}$ and $\ce{Al}$ - $\ce{Be2C}$ and $\ce{Al4C3}$ (Methanides) contains $\ce{C^4-}$ ion $\ce{Na}$ and $\ce{Ca}$ ...
2
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1answer
58 views

Explanation of steric hindrance and existence of PI5

I have come across a following line in my textbook- $\ce{PI5}$ does not exist due to steric hindrance. I searched for the explanation of steric hindrance in Wikipedia but couldn't understand it. Can ...
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0answers
15 views

how could we balance Oxygen or any diatomic molecules as fraction i mean if we can balance oxygen in odd number what happen to other mono oxygen [duplicate]

how could we balance Oxygen or any diatomic molecules as fraction i mean if we can balance oxygen in odd number what happen to other mono oxygen and Brian you mean in molecular level it is impossible ...
3
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1answer
87 views

How can we balance one-half of an oxygen molecule, or any other diatomic, in a chemical reaction?

How can we balance oxygen or any other diatomic molecule with a fractional coefficient in a reaction? I mean, if we can balance oxygen atoms in an odd number what happens to other oxygen atom, and ...
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1answer
59 views

I need to report MoS2 values from Mo and Sulfur numbers

I'm having a hard time figuring out how to do this and yes, I have the molecular weights, just don't know how to calculate. Been 20 years since college. EDIT: I'm working with Copper ores. One ...
3
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0answers
33 views

Reaction between ruthenium and bleach

I have recently seen a video of ruthenium on youtube. It says that ruthenium is invulnerable to many acids, especially aqua regia, but it gets destroyed by a simple household chemical, bleach. The ...
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0answers
36 views

Why can oxygen have a coordination number of 3 in a complex between silver and SiO2?

I am running a MD simulation of Silver with $\ce{SiO2}$. Initially my silver atom is neutral and Oxygen has a coordination of 2 with Silicon having coordination of 4. After deposition of silver ...
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0answers
25 views

Titanium Dioxide Suspension

For photocatalysis experiments using titanium dioxide, I’m struggling to find a way to spin coat a TiO₂ suspension onto a Si wafer in such a way that the TiO₂ is bound to the wafer but is exposed to ...
10
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1answer
468 views

If a chemical formula for a mineral contains a comma, are there limits on the amounts of each element?

I have a chemical formula for the mineral actinolite which is: $$\rm{Ca}_2({Mg,Fe})_5{Si}_8{O}_{22}({OH})_2$$ The formula contains a "," which I understand means that the magnesium and the iron can ...
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1answer
69 views

How is persian blue rock salt made?

How is persian blue rock salt made and what does it contain that makes it look blue ?
5
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1answer
70 views

Color of halogens

Why does the color of the halogens deepens as we go down the group? also why there is a change in physical state of halogens down the group? \begin{array}{c|c} \mathbf{Gas} & \mathbf{Color} ...
2
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1answer
57 views

what is the formula of bleaching powder?

What is the structure and preparation for bleaching powder? Why there is a controversy in the formula of bleaching powder? I have encountered many forms of the formula of bleaching powder, like ...
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1answer
48 views

Solubility when multiple salts are involved

Calculate the solubility of $\ce{AgCl}$ ($K_{sp} = 1.6\times10^{-10}$) in $100.0~\mathrm{mL}$ of $4.00\times10^{-3}~\mathrm{M}$ calcium chloride. The stated answer is: $2.0\times10^{-8}~\mathrm{M}$ ...
2
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2answers
34 views

Why Cr(2+) stronger reducing agent than Fe(2+) in water?

According to me $\ce{Fe^{2+}}$ should be a better reducing agent because $\ce{Fe^{2+}}$ after getting oxidized will get a stable $d^5$ configuration and $\ce{Cr^{2+}}$ will get a $d^3$ configuration. ...
6
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1answer
106 views

Search for the last step of an altered Raschig process reaction mechanism

The Raschig process (according to the german wikipedia) is divided in the following steps: $\ce{2NaOH + Cl2 -> NaOCl + NaCl + H2O}$ $\ce{NaOCl + H2O -> HOCl + NaOH}$ $\ce{HClO + NH3 -> ...
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0answers
29 views

Shapes of ionic compound

Can anyone explain the shapes of ionic compounds? What does it mean? What does the coordinate number mean? I know that in $\ce{NaCl}$, one $\ce{Na}$ atom is surrounded by 6 $\ce{Cl}$ atoms, and vice ...
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0answers
39 views

How to prepare vitreous flakes of Boric acid?

Can anyone please tell me how to prepare vitreous slippery flakes of Boric acid (exactly like in the pic)?
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0answers
26 views

Why is the crystal size in dentin smaller than that of enamel?

Why are the crystals smaller and therefore a smaller surface area. From article : "Dentine and enamel have similar mineral compositions, although the carbonate content is much higher in dentine. The ...
2
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1answer
41 views

Formation of magnesium bismuthide

Magnesium shows an oxidation state of $+2$ and bismuth shows an oxidation state of $+3$. Both do not show a negative oxidation state. Then how is magnesium bismuthide ($\ce{Mg_{3}Bi_{2}}$) formed?
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1answer
31 views

Is NaCl in water considered “solution” despite of NaCl's having some precipitation?

Is $\ce{NaCl}$ in water aqueous? For a certain amount of $\ce{NaCl}$, it can dissolve in water but if you add more $\ce{NaCl}$ it can't dissolve any more. So, if in a certain reaction $\ce{NaCl}$ is ...