12

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 $\pu{1.16 \AA}$. $\require{mediawiki-texvc}$ The $\ce{C-O}$ bond length in carbon dioxide is $\pu{1.16 \AA}$. As for the others, I haven't experimented, but I ...


11

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 text description. The Green Book states "The staggered arrangement is now recommended" and refers to the Red Book. It is ACS's recommendation. The ACS Style ...


8

Based on your questions you seem to have a misconception as to the purpose of closing a question. Please read What does it mean if a question is "closed"? first, then come back to this. Why would I close my own question? I imagine this is a rare scenario, but it is sometimes used, e.g. when the asker finds a duplicate of their own question after ...


8

Loong hit this earlier than me. status-by-design Sometimes when you put the computer to sleep, or are on mobile, or do whatever else so you pass the client based restriction of not being able to add the answer after the question was closed, you can still post your answer for as long as 4 hours after the question being closed, because the server still ...


7

This was a change that was recently introduced to mhchem. (‘recently’ meaning ‘in the latest version’.) The change was made because IUPAC explicitly says the charge should not be above the index of the preceeding element. Which makes sense if you think about it in most cases (the charge of $2-$ belongs to $\ce{CrO4}$, not just to the $\ce{O}$) — but it is ...


7

Oscar did have an answer, which they subsequently deleted, but most likely after the newsletter had already picked up the question info.


6

There are other possible solutions. Whether they are simpler, I leave for the reader to decide. To write angstrom, you may use \overset{\circ}{\mathrm {A}} which yields $$\overset{\circ}{\mathrm {A}}$$ almost as desired. Modify this slightly, \overset{\lower.5em\circ}{\mathrm{A}}, to achieve $$\overset{\lower.5em\circ}{\mathrm{A}}.$$ For permille, or ...


6

Note that pinging may be deleted automatically if system considers it unnecessary; see How do comment replies work? For example, here is my screenshot of Safari on MacOS Sierra: I tried to ping you here, but upon publishing the ping has gone: This is an OS- and browser-independent intended behavior. As for mobile app, it hasn't been updated for years and ...


6

There have been (so the legendary mother meta makes us believe) instances where users were gaming the system by down voting every answer other than theirs, and later undid this to get back the down vote penalty. Within the first five minutes, you can change your vote (almost as often as you wish); then it will be locked until the question/answer gets ...


6

The question is unanswered in the sense of stack exchange: it does not have an answer with a score higher than zero. You can see that the answer by oscar has a score of -1, so it does not count. (The deletion probably came later than the newsletter was sent, we would have to know the time when it was composed to compare, so it still shows up there.)


6

You'll need a so-called positive question record for the Curious badge and related badges. A positive question record means you don't have too many closed, downvoted or deleted questions, overall. The formula is (total questions - negative questions - closed - deleted)/total questions ≥ 0.5` Questions that have been downvoted and closed and deleted count ...


6

This answer seems to suggest there are no ads on Chemistry (except for the sidebar) and the privilege is therefore hidden: The privilege exists everywhere. But on most sites, it's hidden and notifications for earning it are suppressed. Doesn't make much sense to tell folks about a privilege that doesn't actually do anything. Here is another answer which ...


5

Tags on Chem.SE are generally not unilaterally created by one person. If you want to make a new tag, the proper method would be to submit a proposal on meta. Since your post doesn't contain any rationale for why such a post might prove "quite helpful", I am interpreting this post as solely asking for help on how to create a tag. Creating a tag on mobile is ...


4

As I indicated in my comment to @Normal's answer, we have both upright and slanted uppercase Greek letters with Mathjax (with upright the default option): \begin{array}{lcl}\verb+\Lambda\Gamma\Psi+& \Longrightarrow & \Lambda \Gamma \Psi \\ \verb+\it \Lambda\Gamma\Psi+ & \Longrightarrow & \it \Lambda\Gamma\Psi\end{array} There is currently ...


4

This feature is poorly documented on meta, so rather than waiting 6 to 8 weeks for documentation to arrive here is the full documentation: Users who have the access review queue priviledge but not the editing priviledge (A.k.a. $x < 2~\mathrm{krep}$; $x$ being the user’s reputation) These users do not see that orange box. Users with the editing ...


3

Honestly, you aren't the only person shocked. I was too.. TBH, this began after I started playing around with deleting an answer and testing the delay in the rep recalculation taking place. I did it for a pretty long time. Checked the rep tables and I saw this. Checked multiple posts on Meta, both here and mother meta, nothing found. After seeing this, I ...


3

There are currently several feature requests open for MathJax, that explicitly mention upright greek fonts. The status is currently "A future release". LaTeX input: add support for pifont package #1220 LaTeX input: upright Greek Letters #382 [TeX fonts] upright lower case Greek letters missing #1076 Wasysym and textcomp is also considered (via \unicode) ...


3

The workaround is to go back to using \mathrm: $2.01~\mathrm{g}$ $2.01~\mathrm{g}$ $450~\mathrm{kJ~mol^{-1}}$ $450~\mathrm{kJ~mol^{-1}}$ But apart from that I don't think there is anything we can really do on our end.


3

Eventually I gave up on trying to use $\mathrm\LaTeX$ escape sequences for every non-ASCII character, and decided to solely switch to XeLaTeX for scientific writing with a set of fonts which support as many characters as possible (UTF-8 only documents). That's said, if you are on a desktop computer, I'd recommend to invest some time in getting to know a ...


1

This is a feature. While on the normal question site all thermodynamics questions will show up highlighted, you have just searched for questions with thermodynamics (note it says [thermodynamics] in the search bar on the top of the page). In the search view, only those questions are highlighted that have another tag you follow in addition to thermodynamics. ...


1

As per one of the many SE updates that happened since this question, this can no longer happen. People composing answers will now immediately be notified if the underlying question has been closed.


1

This behavior may have changed in the interim, but as of 2 Feb 2017, the orange-boxed number in the header bar indicates the number of suggested edits awaiting review, not the total number of posts pending review of any kind, at least for me as a user with ~8k rep: If the tooltip for this indicator still says # total posts awaiting review (I do not show ...


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