# Tag Info

### Hidden points of editing you probably didn't know

Sizing for images If you post to Imgur (the default host for StackExchange) you can use URL suffix codes to change the size of the image in your answer or question:  \small \begin{array}{clcc} \...

### Hidden points of editing you probably didn't know

Units formatting Units should always be upright, and be separated by value with a space. This can be achieved best in MathJax with the sequence ...
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### Hidden points of editing you probably didn't know

Overview and Quicklinks (ordered chronologically, oldest entry first) Units formatting Use mhchem for MathJax to format chemical expressions Sizing for images Grammar, spelling, and style Compose ...
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### How do I draw chemical compounds and chemical reaction mechanisms and add it to my questions?

There are quite alot of chemical structure and mechanism drawing tools out there, but I would prefer using the online sketcher provided by ChemDoodle, due to the fact that it's completely online-based,...

### Hidden points of editing you probably didn't know

Compose good titles and headings Clean, descriptive titles improve searching. Martin mentioned it in a comment, but I will summarize here. Good titles help make questions about chemistry experiments,...

### Hidden points of editing you probably didn't know

Be judicious when editing questions that are [on hold] or [closed]. Editing posts bumps them back to the top of the main page. Only edit closed questions that you think you can improve them to the ...

### Hidden points of editing you probably didn't know

Use mhchem for MathJax to format chemical expressions (For people out there who don’t know this … yet.) We have the wonderful mhchem package which comes with the ...

### Hidden points of editing you probably didn't know

Don't let the broad tag be Tags help define categories for questions and thus they make searching easier. Occasionally I see posts — from relatively new users especially — that contain ...

### Chemistry.SE should be more user friendly- really disappointed

I'll try to answer you with each of the "points" you make. Something is really wrong with Chemistry.SE. Is it? Why do you think a community is wrong and you are right? Maybe you should ...
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### What do I need to know about tagging?

How to find out if a tag is good to have/make I present to you, the MAR Tag Test™ (abbreviated as MATT), a short test with three possible responses to each question, designed as a crude way of ...
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### How to write physical units

Instead of \mathrm many people misused \ce, because it was shorter to type. Seeing this, the author of ...
• 3,296

### Hidden points of editing you probably didn't know

Use display style maths wherever possible Inline maths mode should be only used for short introductions of terms, a sum formula of a compound. For more complex terms, like fractions or sums, it ...
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### Need help! I got banned from chemistry stack exchange

As I mentioned in a comment (which I've now deleted): I'm afraid none of us can 'unban' you. It's a system ban, it's not somebody who personally chose to impose a ban on you. Please see: What can I do ...
• 66.9k
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### How do you number equations

2+2=4\tag{1} $2+2=4\tag{1}$
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### Hidden points of editing you probably didn't know

Text and spaces in MathJax Trying to put a short phrase in your MathJax, but your spaces keep disappearing? There are a few ways to explicitly insert spaces. For a short phrase it is best to use the ...

### Hidden points of editing you probably didn't know

Comprehensive editing I’d like to add another issue that I see not happening way too often: When editing for any of the other points, do a simple check of the text and the MathJax involved, too. ...
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### How to render Angstrom and Parts-per notations in MathJax?

For Angstroms, check out: What additional formatting features are available to MathJax (possibly via \require{})? $\require{mediawiki-texvc}$ The $\ce{C-O}$ bond length in carbon dioxide is \$\pu{1.16 ...
• 66.9k
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### What's the difference between "flagging → duplicate" and "flagging → should be closed → duplicate of..."?

There is no difference between the two options. (See New flagging dialog has a duplicate for duplicate on Meta Stack Exchange)
• 66.9k

### Why has my account been restricted?

Unfortunately, there is no real answer we can give that is not already found in the meta.SE link provided in the comments. Diamond moderators are not privy to the internal workings of the automatic ...
• 66.9k
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### Allow small edits

No, unfortunately there isn't a way to get around this for users without the editing privilege (2000 rep). People have proposed this as a feature on Meta.StackExchange numerous times, but it's ...
• 2,926
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### What additional formatting features are available to MathJax (possibly via \require{})?

As described in the MathJax documentation, any of the core MathJax extensions can be loaded this way (though this can be restricted via the MathJax configuration).

### What additional formatting features are available to MathJax (possibly via \require{})?

Command Grouping Enable with: \require{begingroup} Environment: \begingroup ... \endgroup Quite a few things are possible ...
• 42.7k
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At this time, your question has three close votes as "too broad". This is probably because you've asked about more than one topic (pi bonding in coordination compounds and synergic bonds), and ...
• 16.9k
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A score of 10 means "total upvotes minus total downvotes ≥ 10", not "earned you ≥ 10 reputation".
• 66.9k
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### Is there a way to proactively vote against closure?

Just going to rattle off a quick answer. There are a few ways. None of them will actively stop people from voting to close, but this is about as good as it gets. Firstly, you can leave a comment, ...
• 66.9k
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### Regarding duplication of chemistry stackexchange content on other forums for money?

Well, every time you copy people's answers for your own benefit, a tiny piece of your own soul dies, so that might be sufficient punishment for these people (or at least part of the punishment). (I'm ...
• 66.9k

### What happened to writing ions with \ce?

This change was introduced with MathJax/mhchem v3. That's because it is the recommended way of writing. It is IUPAC's recommendation. Red Book section IR-4.3 shows examples, but is missing a clear ...
• 3,296