Click an Add Atom button, then click and drag the atom to the black box. There, you will see the name of the atom. Click and move more atoms to make more molecules. Some molecules do not show up in "Current Combinations". This is by accident. NO MORE ADDITIONS!!! FOR THE SAKE OF MY SANITY! 4/2/17: A new Chemistry Maker is available here: https://scratch.mit.edu/projects/150303863/
Tell me if there are any other molecules using only Hydrogen and Oxygen, or what else you would like to see. V1.5 added Current Combinations, with some bugs like duplicates and the fact that molecules with less atoms than you have are still displayed. Thank you everybody for making remixes - I'm totally not a chemist! CURRENT MOLECULES: Water - H2O Hydrogen Peroxide - H2O2 \/ MORE \/ Carbon Monoxide - CO Carbon Dioxide - CO2 Moth Balls - C10H8 Acetylene - C2H2 Methane - CH4 Ethane - C2H6 Propane - C3H8 Butane - C4H10 Benzene - C6H6