Questions tagged [carbon-family]

For questions about the carbon family (group 14) elements, their compounds, and their trends in various physical and chemical properties. For questions specifically about carbon or its allotropes only, prefer using tag [carbon-allotropes] instead.

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Why does bubbling carbon dioxide through calcium hydroxide result in a precipitate?

Why does the addition of carbon dioxide to calcium hydroxide create the precipitate calcium carbonate? What happens chemically for such a molecule to form? How exactly do their interactions come into ...
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Has there been any independent verification of the results from this Chinese nanotube study?

Watts up referred to the South China Morning Post in reporting that a Tsinghua University team led by Wei Fei claimed in 2018 to have manufactured carbon nanotube fibre has tensile strength of 80 ...
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What molecules are produced in carbon arc lamp and how do they produce light?

I am curious about the chemistry of the arc lamp (an indirectly for the incandescent bulbs) thus I would like to ask the following. It is a common understanding that the electrons pushed inside an ...
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198 views

Which is more metallic: boron or silicon?

I read somewhere that boron is more metallic. Is it correct? If so, can you please elaborate? The reason why I'm confused is because 2 factors come into play here: When you move towards right, ...
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40 views

Simple tests for presence of CO₂

Am aware that one method for testing for the presence of $\ce{CO2}$ is passing the gas through limewater, with it going cloudy if positive. Are there any other convenient methods?
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1answer
298 views

Do all polymers contain either carbon or silicon?

Is either carbon or silicon present in every known polymer? If not, is there a small group of elements that, between them, are present in every known polymer, or can polymers be based on a lot of ...
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Raman Spectrum of Graphene

I recently took a raman spectrum for a sample of graphene-pla. The result had the characteristic G and D bands associated with Graphene, but not the 2D. But there is a broad peak at around 3100, which ...
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28 views

What does 'a' stand for in 'a-C' according to research paper lingo?

I came across this paper but I cannot figure out what is a-C as it is not defined. The C here is obviously Carbon. Regarding 'a' prefix My best guess is that it stands for amorphous. Is this correct?
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Carbon emission in absence of oxygen [closed]

When wood is pyrolysed in absence of air is $\ce{CO2}$ emitted. If yes why is it not combustible?
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Reactants in high temperature chemical vapour deposition

I'm setting up a high-temperature electrolysis rig for the purpose of chemical vapour distribution. The molten carbonate (750 degrees Celsius) will be lithium carbonate. The cathode will be ...
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1answer
172 views

Carbon chains isomers, why is 1-methyl-hexane not a thing? [duplicate]

As title reads, why shouldn't 1-methyl-hexane work but 2-methyl-hexane and 3-methyl-hexane does?
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how to manufacture PTC ink

I am trying to create a PTC ink similar to Henkel ECI8120 , I researched PTC rubber and found that it was Polydimethylsiloxane (PDMS) loaded carbon nanoparticles, I was wondering if anyone here has ...
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Help with Carbon Fibre

I'm having trouble finding articles about carbon fibre that don't contradict other articles. I just have a few questions about the atomic structure and the intermolecular and intramolecular forces. ...
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Does this binary compound of C and N - isoelectronic with carbon suboxide - exist?

I am a mathematician not a chemist, so my questions are naive and rather combinatorial. I am intrigued by the possibility of the following compound: $$\ce{N- = N+ = C = N+ = N-}$$ which ought to ...
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I have an idea through utilizing soda lime or other basic substances to help solve climate change

I have an idea through utilizing soda lime or other basic substances to help solve climate change. I want to see if there are some possible errors or other negative implication that I am disregarding. ...
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Why CCl4 does not dissolve in water while SiCl4 does?

Why $\ce{CCl4}$ does not dissolve in water while $\ce{SiCl4}$ does? Does it have to do with d-orbitals? If yes, then how are they related?
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803 views

Why does dimethyl dichlorosilane undergo hydrolysis to form siloxane polymers, but its carbon analog does not?

Dimethyl dichlorosilane will undergo hydrolysis to form siloxane polymers. But why would its carbon analog dimethyl dichlorocarbon not be able to undergo a similar hydrolysis reaction to form polymers?...