In the 9th grade I decided to write a TI program to help me do my chemistry homework. ChemHelper can do H20 change reactions and conversions. I believe that these files are the most recent ones that I have, but I also have some development versions. Use at your own risk; the answers it provides may be wrong. Not maintained since my freshman year in high school.
Of course! You are allowed to modify and redistribute this code as long as you give original credit. I hope you learn from this and share it. Knowledge is power. Also, no commercial usage, please!
This software is bound by the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.