Based on what I have understood, for methacryloyl chloride there is a geminal coupling of the vinyl protons since they are not chemically equivalent. Why are two singlets observed for vinyl protons instead of two doublets?

I'm laying the foundation for a project called 21st Century steampunk, where I figure out what the world would look like if electricity was never discovered. I'm wondering if it's possible to derive usable metallic aluminum from naturally occurring substances without using the Hall–Héroult process.

This answer on a question regarding whether water is corrosive in pure form, the author implies that "reactive" and "corrosive" are the same thing (at least with water.) "Corrode" seems to mean irreparably damaged which also seems to imply a corrosive reaction is not reasonably reversible where "...

Question: Calculate concentration of Benzalkonium chloride with dilution From my perspective: Is it related to chemistry? yes Is it a low effort post? no; clearly asked what I need and provided example of possible solution for which I am seeking validation Now, is it an easy question? Probably....