Tutorial
1. Press Spawn to spawn an element you selected
2. Select an element button more than once to add the amount of atoms
3. Tap an element ball to see the amount of atoms it has
4. Double tap an element ball to delete it
5. Press the Select button to select the reactants
6. After you're done selecting the reactants, press React to find the chemical product you're looking for.
7. If you have the right amount of atoms and the right elements, the chemical product will work!