23
votes
Poll: mhchem syntax for electron configuration
In order to get $\mathrm{[Kr]\mskip2mu4d^{10}\mskip2mu5s^1\mskip2mu5p^3\mskip2mu5d^4}$, I'd prefer to input $\ce{[Kr] 4d10 5s1 5p3 5d4}$.
- 3,316
15
votes
Mhchem feature request: strikethrough and crossout reaction arrows
Thanks for your nice words about mhchem. I am happy to implement this feature. In fact, it already is listed on my to-do list.
There are four steps, that I need to decide on, for each mhchem feature ...
- 3,316
13
votes
Accepted
Green checkmark or red X with Mathjax/mhchem?
CAVEAT: Due to the use of Unicode, the below may not render properly on all systems, especially mobile devices. (Thanks, Martin!)
Green boxed checkmark
...
- 17.3k
13
votes
FAQ: How can I format math/chemistry expressions on Chemistry Stack Exchange?
(4) Learning by example
The MathJax and mhchem syntax in the left-hand side must be enclosed in single dollar signs $...$ for an inline (smaller) equation, or ...
12
votes
Accepted
What is the standard way to denote physical states in a chemical reaction?
States of aggregation should not be subscripted, it is not wrong, but the recommendations (Sec. 2.1.) are different.
The document recommends that:
The symbols should be printed in roman type ...
- 43.8k
12
votes
Green checkmark or red X with Mathjax/mhchem?
You can use the following for a green check mark since it is implemented in amssymb:
$\Large\color{\green}{\checkmark}$ ...
- 43.8k
11
votes
Accepted
Unknown Notations
It really is tricky to judge what is official and what is not. Here is my take on the several issues.
This is not something that should be implemented in mhchem, as I think it is just sloppy ...
- 43.8k
11
votes
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 ...
- 3,316
11
votes
Poll: mhchem syntax for electron configuration
In order to get $\mathrm{[Kr]\mskip2mu4d^{10}\mskip2mu5s^1\mskip2mu5p^3\mskip2mu5d^4}$, I'd prefer to input $\ce{[Kr] 4d^10 5s^1 5p^3 5d^4}$.
- 3,316
10
votes
Green checkmark or red X with Mathjax/mhchem?
A meta answer to a meta question, making it meta². Be careful with conventions like this. They are not as intuitive and universal as you might think.
I've seen
✘ Artificial Flavours
written on ...
- 3,316
10
votes
Accepted
Extra spacing before mhchem super/subscripts
This doesn't look right.
$\mathrm{|{}^1H|}$ $\mathrm{|{}^1H|}$
and
$\mathrm{|\ce{^1H}|}$ $\mathrm{|\ce{^1H}|}$
should give the ...
- 3,316
8
votes
Accepted
Mhchem broken on mobile
This bug was caused by /sites route in the stackexchange api not returning MHChemMathJax in markdown_extensions due to ...
- 101
8
votes
Accepted
Why two different print styles for the x's?
You are mixing chemistry typeset with maths typeset; I don't think that the mhchem module is set up for this. There is probably much more wrong than what you consider a bug. Assuming $K$ is an ...
- 43.8k
8
votes
Accepted
Why is rendering of this pu markup weird?
It's because you have a tiny, invisible character between the 8 and the 0. Move your arrow keys back and forth inside the text; you'll find you need one extra key to traverse the gap between 8 and 0.
...
- 71.1k
7
votes
What happened to writing ions with \ce?
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 ...
- 67.3k
7
votes
Chemical formulas with fractional numbers are displayed wrongly
This issue has been solved since mid of 2016.
$\ce{0.5H2O}$ renders as $\ce{0.5H2O}$.
Short background: MathJax is NOT LaTeX. MathJax is a complete re-...
- 3,316
7
votes
Accepted
What to do if mathrm is hugging physical units?
TL;DR:
What is the need of it if mathrm is doing the job properly? – Apoorv Potnis
There is no need.
There always was a demand for the ...
- 43.8k
7
votes
Plus-minus sign messes with mhchem's \pu command
Thanks! Some of the things are already fixed on my harddrive (the "undefined" error), but not published yet. The others, I take as valid input for my todo list.
For now, ...
- 3,316
7
votes
Polymer formula bond-bracket crossing representation
mhchem doesn't support this yet.
I'll put it on my the (mid-term) to do list. Thanks for the link to the IUPAC document.
Please, please, don't write spacing commands inside ...
- 3,316
7
votes
Accepted
MathJax mhchem editor
Yes, see Introducing: Markdown Shortcuts for StackExchange. Of course, this doesn't change the fact that you will need to learn a new bunch of shortcuts (or customise them). That is all we really have,...
- 71.1k
6
votes
Accepted
Plus-minus sign messes with mhchem's \pu command
MathJax/mhchem 3.0.6 should fix the issues. It supports all standard uncertaincy notations as listed at https://chemistry.stackexchange.com/a/58667/24052. It will take a week or so to make its way to ...
- 3,316
6
votes
FAQ: How can I format math/chemistry expressions on Chemistry Stack Exchange?
(3.1) Basic mhchem: Chemical formulae
Chemical formulae can be typeset with the \ce{...} command. Note that the \ce{...} command ...
5
votes
Accepted
Where to offer mhchem support?
The official documentation of MathJax/mhchem 3.0.0 can be found at https://mhchem.github.io/MathJax-mhchem/. It includes a test drive for live testing.
Please be aware that you might not be using the ...
- 3,316
5
votes
Eliminate huge-locant-marked (by \overset) atom side space
Probably not, at least probably not in the way you would like it. As far as I see there is no centering zero-width box implemented in MathJax (in LaTeX one could use makebox with ...
- 43.8k
5
votes
Is there a site on ChemSE to practice mhchem and mathjax?
We have a couple of posts on meta where you can add an answer and edit as you wish. The first one has been closed because of the large number of answers, which makes editing very difficult as MathJax ...
- 71.1k
5
votes
Accepted
Problem in rendering with arrow
It looks like StackExchange has (apparently recently) added CSS that is causing the problem. In their primary.css file is the declaration
...
- 101
4
votes
Does the rendering of the precipitation and gas symbols need improvement?
A ‘better’ cheap hack to reduce the distance between the arrow and the formula is to use negative space, \!.
$$\begin{array}{lc}\text{Markup} & \text{Output}\\
...
- 67.3k
3
votes
Does the rendering of the precipitation and gas symbols need improvement?
\ce{AgCN v + KNO3} will be rendered as \mathrm{AgCN}\downarrow{}..., i.e. I did not change the default LaTeX spacing. For ...
- 3,316
3
votes
Where to offer mhchem support?
In my opinion, Chemistry.stackexchange.com is probably one of the largest (if not the single largest by a significant margin) sites to use MathJax with mhchem. As ...
- 67.3k
Only top scored, non community-wiki answers of a minimum length are eligible