Questions tagged [inorganic-chemistry]

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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What causes KNO3 to decompose into KNO2 and Oxygen in gunpowder?

I've been studying fireworks and from what I understand: $\ce{KNO3}$ decomposes to form $\ce{KNO2}$ and $\ce{O2}$ gas, and this free oxygen reacts with carbon to react with carbon and sulfur to form ...
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Manganates (II)

I want to ask about character of manganese(II) compounds. I read that $\ce{MnO}$ is basic, just like $\ce{Mn(OH)2}$. I started doing research and I read ions like $\ce{MnO2^{2-}}$ and $\ce{HMnO2^-}$ ...
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Why can phosphorus have 5 bonds while nitrogen cannot?

Phosphorus can form 5 bonds like in the case of phosphate. While nitrogen is known to make a maximum of 4 bonds (3 covalent, 1 dative covalent). But why is this so? Is it because nitrogen doesn't ...
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Why triiodide ion does not form ionic bond with cation having +2 charge?

In general, I found that triiodide ion generally forms ionic bond with cations having +1 charge like $\ce{NH4+I3-}$, $\ce{K+I3-}$, $\ce{Tl+I3-}$. But, I have never seen triiodide ion forming ionic ...
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Disproportionation of 2 KO₂ + 2 H₂O → 2 KOH + H₂O₂ + O₂

How is the following reaction a disproportionation reaction? $$\ce{2 K\overset{-1/2}{O}_2 + 2 H2\overset{-2}{O} ->2 KOH + H2\overset{-1}{O}_2 + \overset{0}{O}_2}$$ In this, the OS are $-1/2$, $-2$...
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Can I convert elemental nitrogen to nitrous oxide?

Can I convert nitrogen to $\ce{N2O}$, to conduct barking dog reaction, where it's needed as oxidizer?
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why “amu” is used as a unit in relative atomic mass? [duplicate]

Unified atomic mass unit (amu) is defined as $1/12$ of the mass of a Carbon-12. I want to know is this amu equal to $\pu{1.99e-23 g}$ and why do we use amu which is $1/12$ the mass of carbon? Why use "...
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Why magnesium has the lowest melting and boiling point in its group? [duplicate]

It is written in the third point ( shown in the picture) that presence of d orbitals results in stronger metallic bond. 1) We check the strength of metallic bonding to compare the melting and boiling ...
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How can I neutralise H2 gas without burning it? [closed]

I was thinking of maybe making it bubble into a solution containing something that would react with H2 yielding either a dissolved substance or a precipitate from the reaction. Maybe a solution with ...
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How does aqueous ammonia react with hypochlorous acid in water?

Here is what I have so far: $$\ce{NH3 + HOCl -> NH2Cl + H2O}$$ Since ammonia reacts with hypochlorous acid to form the chloramine $\ce{NH2Cl}$. But I don't know if this is correct.
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Why is phosphorous acid more acidic than phosphoric acid?

Phosphoric acid has basicity of 3 i.e it can loose 3 $\ce{H+}$ while phosphorous acid has basicity of 2. Why is phosphorous acid more acidic than phosphoric acid? Acidity refers to the ability to ...
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What is the structure of Cl₂O₆?

I couldn't find which of these is correct and even someone I asked said there's no general covincement on it, but I'm unsure whether he's correct? I reproduced the second structure a little wrong ...
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What compound is formed in this case?

I read from a source that the aqueous solution of ferrous sulfate ($\ce{FeSO4}$) gives an unstable brown compound on treating with $\ce{NaNO2}$ and dilute $\ce{HCl}$. Well, it is quite understandable ...
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Hydrates In Aqueous Solutions

Say you had copper(II) sulfate pentahydrate as a solid. In an aqueous solution, is it still referred to by its hydrated form? Is it still called copper(II) sulfate pentahydrate (aqueous) or simply ...
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Why do silver nitrate and sodium hydroxide react to produce silver(I) oxide?

I did an experiment in class combining the aqueous solutions of $\ce{AgNO3}$ and $\ce{NaOH}$. I predicted that $\ce{AgOH}$ would form but it didn't, instead a brown precipitate. I found out it was ...
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Why is AlCl₃ is known as aluminium chloride while PCl₃ is known as phosphorus trichloride? [duplicate]

Why is $\ce{AlCl3}$ is known as aluminium chloride while $\ce{PCl3}$ is known as phosphorus trichloride? I think it is due to variable valency if phosphorus. Is it true?
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Structure of the bifluoride anion [duplicate]

I came across this structure of $\ce{HF2-}$ and realized that the bond shown between H and F is a hydrogen bond. $$\Large\ce{[F-H-F]-}$$ HF hydrogen bond are the strongest hydrogen bonds we know, ...
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What does Pb(NO₃)₂ + KI form? [closed]

What does $\ce{Pb(NO3)2 + KI}$ form?
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Interaction between Ozone and Carbon Dioxide

We are trying to predict what will happen when carbon dioxide gas is introduced into a contact chamber that serves as an ozone contact chamber. These contact chambers presently oxidize compounds found ...
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Calculating bond dissociation enthalpy of F-F bond

$$\ce{N2 + 3 F2 -> 2 NF3} \quad ΔH = \pu{-263 kJ mol-1}$$ The bond dissociation enthalpies of the nitrogen triple bond and nitrogen–flourine bond are $\pu{946 kJ mol-1}$ and $\pu{272 kJ mol-1}....
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What type of chemical reaction is this?

So far we have learned about about single displacement, double displacement, gas evolving, neutralization, synthesis, disassociation, and combustion. I was trying to solve the following chemical ...
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Heating of potash alum

I have this reaction : $$\ce{K2SO4.Al2(SO4)3.24H2O -> K2SO4 + Al2O3 + 24H2O}$$ And I notice that while $\ce{Al2(SO4)3}$ becomes $\ce{Al2O3}$ it doesn't happen so with $\ce{K2SO4}$. Why ? I guessed ...
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Reaction between silver(I) hydroxide and an alkali [closed]

I've read about this in a booklet, but I can't find its stepwise reactions or its derivation: $$\ce{AgOH + NaOH -> Ag2O}$$ And how does a base ($\ce{AgOH}$) react with another base ($\ce{NaOH}$)? ...
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Help regarding stereochemically inactive s orbital [duplicate]

Author JD Lee says in his book, Inorganic Chemistry The dipole moment of $\ce{XeF6}$ is approximately = $0$ because the lone pair is present in the stereochemically inactive s orbital. What is ...
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What ratio of bicarb to sugarcane juice with a pH level of 4.5-5.5 to neutralize pH level? [closed]

I am thinking of adding baking soda to sugarcane juice to eliminate the fruity acid that is present. The pH of sugarcane juice ranges from 4.5-5.5. I wonder how much baking soda should I incorporate ...
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Inorganic reactions related to nascent hydrogen [closed]

Nascent hydrogen is prepared by (A) $\ce{Na}$ and $\ce{C2H5OH}$ (B) $\ce{Al}$ and $\ce{NaOH}$ (C) $\ce{Zn}$ and dil. $\ce{H2SO4}$ (D) All of these My attempt I know that option (A) &...
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If copper is insoluble in excess NaOH, does it mean it is soluble in NaOH when not in excess? [closed]

I don't understand, does it mean when i add a little bit of NaOH, there will be completely no precipitate/ it will dissolve?
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How to write reaction equations for the reaction of calcium and dilute nitric acid?

Normally metals react with dilute acid to form a salt and evolve hydrogen gas but I have read that hydrogen gas is not evolved when a metal reacts with nitric acid (because Nitric acid is a strong ...