S(sulfur): atom Glucose: molecule and compound Oxygen: atom DNA: molecule and compound H2O: molecule and compound Helium: atom Ozone: molecule and compound Carbon Dioxide: molecule and compound Carbon Monoxide: molecule and compound HCI: molecule and compound Sulfuric Acid: molecule and compound Xe: atom Uranium: atom N2O: molecule and compound N2: molecule Silver: atom NaOH: molecule and compound Gold: atom NaCL: molecule and compound Aspirin: molecule and compound Tungsten: atom Lead: atom Epinephrine: molecule and compound Butane: molecule and compound Caffeine: molecule and compound H2: molecule S8: molecule Hg: atom Cholesterol: molecule and compound I2: molecule note: A chemical compound is a pure chemical substance consisting of two or more different chemical elements. this is why H2, S8, N2 are not compounds. Solution S(sulfur): atom Glucose: molecule and compound Oxygen: atom DNA: molecule and compound H2O: molecule and compound Helium: atom Ozone: molecule and compound Carbon Dioxide: molecule and compound Carbon Monoxide: molecule and compound HCI: molecule and compound Sulfuric Acid: molecule and compound Xe: atom Uranium: atom N2O: molecule and compound N2: molecule Silver: atom NaOH: molecule and compound Gold: atom NaCL: molecule and compound Aspirin: molecule and compound Tungsten: atom Lead: atom Epinephrine: molecule and compound Butane: molecule and compound Caffeine: molecule and compound H2: molecule S8: molecule Hg: atom Cholesterol: molecule and compound I2: molecule note: A chemical compound is a pure chemical substance consisting of two or more different chemical elements. this is why H2, S8, N2 are not compounds..