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### Formatting Sandbox II: please test stuff here

Spoiler warning: Be aware that this page contains a lot of MathJax, so it will probably need quite a while to load completely. User of the old sandbox will have noticed that with the amount of ...
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### Hidden points of editing you probably didn't know

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\...
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### Comment Templates

Guidance is pretty important, and I'm going to write a meta post in some other meta about it soon. Long story short, if it weren't about guiding users, I wouldn't be writing this and you wouldn't be ...
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### Should the images with transparent background be preferred?

Since the default background color on Chemistry.SX is white, any image, whether it has an alpha-channel to it (e.g. PNG with transparency enabled) or not (e.g. JPEG of GIF) looks fine. However, ...
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### What's the policy on systems of measure?

Whilst the SI is very popular in chemistry (and in the world in general) there are a wide range of commonly used units in chemistry that are not SI or SI-derived (kcal, Bohr, Hartree, mmHg, enzyme ...
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### We need some upgreek, please!

Correct typesetting is what you would expect from an academic community. Chem.SE has always tried to be one, and we always value their standards; and our meticulous editors have always had an eye on ...
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### How do you number equations

I have an answer that has a number of equations. Within the text of the answer I just want to refer to the number of the equation. I saw it on an answer somewhere, but I can find such an answer now. ...
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### How do we write catalysis when writing equations?

Many reactions are invoked/sped up by presence of certain chemical substance. This is called catalysis. As far as I know, catalyst is then written above the arrow of the reaction. The same is also ...