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  1. P

    B Cryogenic storage dewars and EM waves

    Got it! Thanks:biggrin:
  2. P

    B Cryogenic storage dewars and EM waves

    I was researching cryogenic storage dewars and read that, "All dewars have walls constructed from two or more layers, with a high vacuum maintained between the layers. This provides very good thermal insulation between the interior and exterior of the dewar, which reduces the rate at which the...
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    Iron oxidation states

    Okay, thanks for your help!:biggrin:
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    B Question about Iron-56 binding

    Got it! Thanks again :biggrin:
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    B Question about Iron-56 binding

    Thanks for the info! So my understanding was that all matter would revert to Fe-56, rather than Ni-62, even though Ni-62 has a higher binding energy. Wikipeida states this as being due to the competition between photodisintegration and alpha capturing during nucleosynthesis. So does what you...
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    Iron oxidation states

    Sorry for my ignorance. What is the difference between 'donate' and 'give up'?o_O I still can't understand why Fe would want to give up 3 electrons. So far I have only studied smaller elements (Ca and smaller) and everything made sense because, with the exception of hydrogen, all the elements...
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    B Question about Iron-56 binding

    https://en.wikipedia.org/wiki/Iron-56
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    Iron oxidation states

    I guess what was (is) confusing me is the different electron configurations for Fe ions. I watched a video about it and my confusion is why Fe3+ is able to donate 3 electrons to form a compound like FeCl3 when it has 5 electrons in its outer shell (d)?
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    B Question about Iron-56 binding

    As I understand you are saying that above a certain pressure an atom of Fe-56 does become unstable. In theory, is going beyond this critical pressure point what causes the collapse of an iron star into a neutron star?
  10. P

    B Question about Iron-56 binding

    I read that all matter in the universe, through fission or fusion, will eventually create 'iron stars' comprised of 56Fe, which will then eventually collapse into neutron stars and black holes.
  11. P

    B Question about Iron-56 binding

    Is it possible for two 56Fe atoms to fuse together? As I understand they won't. So what happens when the two atoms undergo extreme heat/pressure? Do they break down into neutrons?
  12. P

    Question about Calcium Nitride

    Thank you again for all your feedback! I'm grateful that everyone here takes the time to respond to my questions, seeing as how nobody is paid to do so. Any type of feedback is always valuable to me because there is always something I can learn from it. And even if I can't understand anything...
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    Iron oxidation states

    I saw on Wikipedia that Fe has both positive and negative oxidation states. I know that Fe will willingly give up its 2 electrons to form an ionic bond with O for example, making it Fe+2. 1. But how can Fe+3 exist? This means it gives up three electrons right? Does this mean the Fe atoms...
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    Question about Calcium Nitride

    Got it. Thanks again!:biggrin:
  15. P

    Question about Calcium Nitride

    I'm not sure why but I can't see the structure with that article either. Maybe you have to be logged in as well, or maybe I have no idea what I'm doing.o_O Anyway, I think I know what it looks like. Thanks again
  16. P

    Question about Calcium Nitride

    Thanks! :woot: 1.) I don't have an account with this website so I can't see the structure. What do the [brackets] around N2 mean? Does this represent a double covalent bond between the nitrogen atoms in comparison with an ionic bond between Ca and N2? 2.) Is it also possible for HK[N2] to...
  17. P

    Question about Calcium Nitride

    Thanks for the feedback!:biggrin:
  18. P

    Question about Calcium Nitride

    *update: sorry this was a mistake (kind of)...:sorry: I was thinking about the 2 nitrogen atoms having a double bond with each other and then an ionic bond with the Ca. Is this possible?
  19. P

    Question about Calcium Nitride

    I know calcium nitride is Ca3N2, but why doesn't CaN2 exist (or at least not that I can find)?
  20. P

    Does Cl2 + KH > KCl + HCl?

    Got it! :biggrin: So, if I understand correctly you are saying that there will most likely be a reaction between Cl2 and HK, which will produce HCl and KCl?
  21. P

    Does Cl2 + KH > KCl + HCl?

    I was able to find a compound for HCl and KCl here: https://pubchem.ncbi.nlm.nih.gov/compound/19002529#section=2D-Structure Is this fake?
  22. P

    Polar Covalent Bond in HCl question

    Got it! Thanks:biggrin:
  23. P

    Does Cl2 + KH > KCl + HCl?

    I mean HCl the gas, not Hydrochloric Acid, so there is no oxygen present in this reaction (if I understand your response correctly).
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    Polar Covalent Bond in HCl question

    If my understanding is correct, the polar covalent bond in HCl creates a polar molecule because the molecule is unsymmetrical. 1. Does this mean that the partially positive H of one HCl molecule will be attracted to the partially negative Cl of another HCl molecule and vice versa, to create a...
  25. P

    Does Cl2 + KH > KCl + HCl?

    Does anyone happen to know if Cl2+KH > KCl + HCl? And if it does, what is the reasoning? Is it because Cl2 prefers an ionic bond rather than a covalent bond?
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    Does high electronegativity mean low electropositivity?

    Got it! Thanks again :bow: Is there anywhere you can go to see a list of 'known' reactions between compounds? Like the website I found before, but with real reactions...
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    Does high electronegativity mean low electropositivity?

    So, just to be clear. Is there no reaction between HCl and NaCl? How can I know if a reaction will occur? Is there any disassociation or maybe transfer of Cl- ions between HCl and NaCl? If the answer is no reaction, then can we assume Cl2 + NaH will result in HCl and NaCl? How can we know...
  28. P

    Does high electronegativity mean low electropositivity?

    :cry:I guess studying using the internet doesn't work, which is why talking to a real person is really helpful. Anyways, thanks for all your help!:biggrin:
  29. P

    Does high electronegativity mean low electropositivity?

    Is this bogus or just presenting some hypothetical reaction? https://chemequations.com/en/?s=NaCl+%2B+HCl+%3D+NaH+%2B+Cl2
  30. P

    Can a compound have multiple structures?

    Then how does Na- react with Cl2? Does it create NaCl plus a separate unbonded Cl- ion? At least in terms of electron configuration it seems more balanced, right?o_O
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