Balance chemical equations at the command line.
Run the script at the command line with the command line argument of the unbalanced equation. Example:
python chemical_equation_balancer.py HClO4+P4O10=H3PO4+Cl2O7
Result prints to standard out with the correctl balanced equation:
Balanced equation:
12HClO4 + P4O10 = 4H3PO4 + 6Cl2O7