| Similarity | Rank | |
|---|---|---|
| dioxide | 0.843 | 10273 |
| Nitrogen | 0.827 | 45976 |
| Chlorine | 0.810 | 54131 |
| Sulfur | 0.807 | 70589 |
| C02 | 0.806 | 94587 |
| Methane | 0.803 | 69623 |
| Oxide | 0.799 | 52643 |
| CO2 | 0.798 | 9992 |
| Ammonia | 0.796 | 78473 |
| Chloride | 0.795 | 78692 |
| Oxidation | 0.793 | 91986 |
| oxides | 0.785 | 42880 |
| Hydrogen | 0.775 | 29099 |
| SO2 | 0.773 | 90224 |
| Silica | 0.772 | 71244 |
| sulfur | 0.771 | 22001 |
| Ozone | 0.766 | 41186 |
| Carbon | 0.763 | 11846 |
| gases | 0.763 | 11662 |
| Compounds | 0.762 | 66913 |
| Gases | 0.762 | 90904 |
| sulfide | 0.758 | 49224 |
| Monoxide | 0.758 | 90956 |
| Nitrate | 0.752 | 90091 |
| NOx | 0.749 | 55787 |