This post is meant to teach new folks how to use MathJax and mhchem formatting on chem.SE

Making a good edit is hard. On Chem.SE, we (would/should/could) care about the finest points of formatting. There are basic points of editing many editors know about: Put some fancy MathJax/ $\mathrm\LaTeX$-syntax in, some paragraphing, bullet points for "points", embolden instead of capitalize, ...