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FAQ: How can I format math/chemistry expressions on Chemistry Stack Exchange?

On Chemistry Stack Exchange, MathJax is used to typeset mathematical equations. MathJax's syntax is very similar to LaTeX, so if you have used LaTeX before, almost everything you are used to will work....
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How to render Angstrom and Parts-per notations in MathJax?

Summary: Angstrom, Parts per thousand, Parts per Ten-Thousand cannot be displayed. Prior efforts: Searched Google and Detexify. Angstrom. (The letter), (the diacritic mark). The detexify (...
101 views

The new reputation sum in the new top bar is calculated incorrectly

I was very happy when I saw a sum of new reputation of 123, thinking I may have won a bounty or something and looking forward to another epic day. Then I opened the menu and saw this: I don’t know ...
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Green checkmark or red X with Mathjax/mhchem?

Is there a way to put a green check mark in the body of my text using MathJax/mhchem Syntax? Or a red X to indicate that this thinking is wrong? Something like this: I want to use it while double ...
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Dimensional analysis with chemistry equations on stack exchange?

I know we use Mathjax/mhchem. What I would like to know, is if its possible to cross out units as part of dimensional analysis. Here is an example of the desirable effect:
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Is there a site on ChemSE to practice mhchem and mathjax?

Is there a site on ChemSE to practice mhchem and mathjax? Or does one just learn while asking or answering a question.