3 1 9 表一 常见无机物英文名 Chemical symbol Chemical name Related compounds, salts, properties S sulfur Elemental sulfur SO32- sulfite sulfurous acid 亚硫酸 SO42- sulfate Sulfate,硫酸盐; sulfuric acid 硫酸 SO2 sulfur dioxide SO3: sulfur trioxide H2S hydrogen sulfide Odorous, poisonous S2- sulfide PbS, lead sulfide N2 nitrogen Liquid nitrogen NO3- nitrate K NO3 Potassium nitrate NO2- nitrite Na NO2 NO2 nitrogen dioxide Major air pollutant N2O nitrous oxide Laughing gas F2 flourine CFC chloroflourocarbons Cl2 chlorine HClO, hypochlorous acid Br2 bromine HBr, hydrogen bromide I2 iodine AgI , silver iodide HCl Hydrogen chloride; hydrochloric acid HF , hydrofluoric acid Cl- chloride NaCl sodium chloride C Carbon Activated carbon CCl4 Carbon tetrachchloride CO32- Carbonate ion Na2CO3 sodium carbonate HCO3- bicarb