chemeq software package provides Parser for chemical formula and equilibria, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install chemeq
chemeq is installed in your system.
Make ensure the chemeq package were installed using the commands given below,
$ sudo dpkg-query -l | grep chemeq *
You will get with chemeq package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | TeX |
| Package | chemeq |
| Version | 2.12-1 |
| Description | Parser for chemical formula and equilibria |
| Sub Section | TeX |