Methanal, or CH2O, has a polar electron pair bond. However, since the molecular geometry is trigonal planar, I'm wondering if it's a dipole molecule, since the charge centers would then overlap. Or am I wrong? Thanks
For my homework, I have to write a reaction equation for the decomposition of magnesium by hydrochloric acid. I don't know how to do something like that, so thanks in advance for an answer. Lg
Our chemistry teacher told us today about a chemical accident where a chemist was exposed to acid and his colleagues poured lye on it, since lye neutralizes acids. Apparently, this made everything much worse. But why is that? I didn't quite catch the explanation today.
Need the answer, we can't find anything on Google.
How do I calculate the half-life of an atom? And can someone give me an example?
CO2 doesn't have a dipole because the partial charges coincide. But is O still negatively polarized if it can form HBB with water? I don't get it…
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Hey!
I hope it still helps;D
It is possible, for example, to use the polymorphy of iron (main component of steel and cast iron) in order to achieve different properties by heat treatments. (Except here are the austenitic steels – X5CrNi18-10 for example)
The classic hardening of steel is only possible in this way.
Also necessary for coaling, laser beam hardening, etc. is a lattice conversion (=polymorphy)
Various properties are required for various applications – on the one hand, the material and on the other hand the heat treatment depends on whether, for example, a spring can fulfill its purpose. The applications therefore vary depending on the material and treatment of simple mechanical parts to precision tools.
Bridge construction
Steel construction
Management
actually everywhere, where expansion plays a role.