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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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### Which symbols are written in roman (upright) font and which are italicized?

This post tries to be a guide to new members of the (chemical) scientific community for instructions on how to apply the right formatting when writing chemical and mathematical equations.
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### Formatting Sandbox I: please *don't* test stuff here [duplicate]

This thread has been retired due to the large number of posts. The newest sandbox can be found here: Formatting Sandbox III: please test stuff here Before that, there was also this Sandbox: ...
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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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### What additional formatting features are available to MathJax (possibly via \require{})?

In his answer to a question about crossing out units in dimensional analysis, Loong notes that the \cancel{} LaTeX command can be enabled in MathJax by using ...
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### What are some basic guidelines for good edits on Chem.SE?

I came across a post on the main site just now that I think could use some changes. I found the editing help page in the Help Center, but its write-up is pretty cursory and high-level. What makes ...
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### Houston, we have a "Problem" in question titles

So we are all familiar with the drill, given through the following: I question the use of "question" in question titles Help make help questions have more helpful titles There are ...
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### How to write physical units

Units have to be written in an upright font. One normally does it this way: $1.2 \times 10^3\,\mathrm{\frac{J}{mol}}$ $1.2 \times 10^3\,\mathrm{\frac{J}{mol}}$ ...
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### Buzzwords in question titles - season 4 & 5 - experiments and exercises

I was looking for a pun in the question title, but was unable to find one. So instead let us remember the previous seasons: I question the use of "question" in question titles (search here) ...
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### Prevention of unnecessary edits of old posts.

The issue of unnecessary edits has been brought up many times here, both on meta and in chat. The "Hidden points of editing you probably didn't know" post puts it fairly succinctly: In any event,...
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### I question the use of "question" in question titles

The search: https://chemistry.stackexchange.com/search?q=title%3Aquestion brings up some 63 odd questions. Some of them are closed, some are actually pertaining to specific questions on particular ...
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### Allow small edits

For the upcoming MathJax/mhchem update, I'd like to make sure that old chemistry.SE posts do not break. I downloaded 12,000 unique usages of \ce and I have been ...
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### Formatting Sandbox II: please *don't* test stuff here [duplicate]

This thread has been retired due to the large number of posts. The newest sandbox can be found here: Formatting Sandbox III: please test stuff here Spoiler warning: Be aware that this page ...