Hello, Unfortunately, I'm someone who has nothing to do with chemistry, etc. But some of you do, so I wanted to ask if any of you know whether firecrackers, rockets, and other things containing black powder or BKs become stronger or weaker after years of lying around, or whether nothing chemically changes with the explosives?…
If the plastic PVA is atactic, it is water-soluble. However, if it is stretched into long, parallel threads in which the macromolecules are arranged isotactically, PVA is not water-soluble. Explain.
I've read a lot online about how to clean heat exchangers in heating systems. I decided to just mix everything together: – Apple cider vinegar – Lemon vinegar – Sour vinegar – Baking powder – Kaiser Natron – lemon powder (20%) – warm water In acid-resistant PE containers and placed outside as a precaution. Can…
What was the most important factor that motivated you to specialize in one of the two areas of chemistry? So what do you think is better about AC and worse about OC (or the other way around)?
Hi guys, can someone briefly explain to me what this is and what it is for
Hey, we're doing atom calculations in chemistry right now and I don't quite understand the following task: Determine the number of hydrogen atoms in 2.5 mol of water: How do I get the number of atoms from this information? Thank you very much for your answer/explanation.
(No Ratings Yet)
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because an unloaded NO3 does not exist! It is the NitratIon NO3(-) which makes it N(V). Since this is also the number of external electrons (see main groups No) is no longer possible!
If a peroxide would still be possible. But then it would be only N(IV), because O2 is only (-II) and not (-IV)!
Forgot the minus sign, but still don’t understand your answer
Each O in the nitrat is (thought) an O 2
Total one (1) charge remains.
“How much + does the N have to bring that out?”
6 ;
because
03: -2-2-2=-6
N: so that the sum equals zero must be N=+6, since -6+6=0
3*-2 (loading of O2) + x=1 (load of nitrate). rho again high
If the sum equals zero, it is unloaded. Nitrations are not unloaded, but simply negative.
It is not 0 loaded, but 1-