MOLhole: Convert, Balance, Stoich

Let's chem with MOLhole, the one-stop shop for all your mole-related needs! 

Convert between grams and moles, balance chemical equations, and perform stoichiometry calculations!

Notes:
- Make sure to capitalize elements properly!
- Chemical equations should be written with + signs separating terms, and an = sign separating reactants and products.
- There shouldn't be any spaces between coefficients and compounds, or between elements and subscripts.
- Currently charges and polyatomic ions aren't supported, but keep an eye out for future versions!