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4 simple questions, those who know them, please share!

2009-03-24View Original

Thread Content

1==================== Why can’t sodium metal be weighed using a metal key? 2====================== Triethylamine hydrochloride… a solid… Can triethylamine be used instead, by adding hydrochloric acid to it? 3===================== Is the reduction of unsaturated nitriles to unsaturated amines a competitive reaction? Does hydrogenation occur simultaneously on both the double bonds and the CN bonds? Is the competition for reaction with CN bonds stronger than that with double bonds? How can we determine whether LiALH4 is highly active? By putting it in water and seeing if anything happens? 4 How many horses are needed to overcome one atmosphere of pressure? Why does the Earth’s gravity push an organism’s internal organs out through its mouth? Is there internal pressure in those organs? What is the value of that internal pressure in Mpa? How much pressure can a boxer generate with a punch? Why doesn’t Earth’s gravity crush us, and why can we jump instead of staying stuck to the ground? Does a person really have a ‘third eye’ in the center of their forehead? Do they have two ‘ghost lights’ on their shoulders?
Reply #22009-03-25
1. Azides decompose rapidly when in contact with metals, resulting in an explosion; 2. No, because hydrochloric acid is an aqueous solution; upon adding triethylamine, it becomes a triethylamine hydrochloride solution, not simply hydrochloride ; 3. Double bonds exhibit strong competitiveness; the activity of lithium aluminum hydride depends on purity, and there are testing methods available for this ; 4. Do you know about the 8 pairs of Shimada hemispheres experiment? ; The pressure throughout the entire space is one atmosphere, which is equivalent to having no atmospheric pressure at all. The rest is common sense.
Reply #32009-03-25
"On the Earth we live on, what exactly are organisms? I have a question!
Reply #42009-03-26
All living organisms need to breathe and are connected to the atmosphere
Reply #52009-03-28
Do people really have a third eye in the center of their foreheads? Do they have two ghostly lights on their shoulders? The question posed by the original poster seems to go beyond the scope of natural science. . . It won’t answer. .
Reply #62009-03-28
I also want to figure it out and keep paying attention to it
Reply #72009-03-28
This is a chemical engineering forum; please stay on topic. Okay?
Reply #82009-04-01
Question: Oh, fantasy lover! Hehehe. Keep paying attention

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