Drag atoms below to make molecules of the following substances. Check your answers by clicking on each formula. Right-click and choose 'Reload/Refresh' to clear the screen. Water H2O      Carbon dioxide CO2      Oxygen molecule O2      Methane CH4 Sulphur dioxide SO2      Nitrous oxide N2O      Carbon monoxide CO Fluorine gas F2      Sodium chloride (salt) NaCl      Iron oxide (rust) Fe2O3 Resources Content, HTML, graphics & design by Bill Willis 2024