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h2和o2反应方程式

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1、铁和硫磺:________________________________________________; Fe+S==(加热)FeS 2、铜和硫磺:________________________________________________; 2Cu+S==(加热)Cu2S 3、硫磺和氧气:______________________________________________; S+O2==(点燃)SO2 4、硫磺和汞:________________________________________________; Hg+S==HgS 5、硫磺溶于热的浓氢氧化钠:________________________________________________; 3S+6NaOH==(加热)2Na2S+Na2SO3+3H2O 6、硫化氢和少量氢氧化钠:__________________________________________________; H2S+NaOH==NaHS+H2O 7、硫化氢和足量氢氧化钠:__________________________________________________; H2S+2NaOH==Na2S+2H2O 8、实验室制备硫化氢:_____________________________________________________; FeS+H2SO4==FeSO4+H2S↑ 9、硫酸亚铁和硫化钠:_____________________________________________________; FeSO4+Na2S==FeS↓+Na2SO4 10、硫化氢和硫酸铜:______________________________________________________; H2S+CuSO4==CuS↓+H2SO4 11、检验空气中是否含有硫化氢:_____________________________________________; (硫化氢和硝酸铅) H2S+Pb(NO3)2==PbS↓+2HNO3 12、硫化氢完全燃烧:_____________________________________________________; 2H2S+3O2==(点燃)2H2O+2SO2 13、硫化氢不完全燃烧:___________________________________________________; 2H2S+O2==(点燃)2H2O+2S 14、硫化氢在空气中被氧化:_______________________________________________; 2H2S+O2==2H2O+2S 15、硫化氢和氯气(溴水,碘水):__________________________________________; H2S+Cl2==2HCl+S 16、硫化氢和次氯酸钠:__________________________________________________; H2S+NaClO==NaCl+S↓+H2O 17、硫化氢和二氧化硫:__________________________________________________; 2H2S+SO2==3S+2H2O 18、硫化钠+亚硫酸钠+盐酸:______________________________________________; 2Na2S+Na2SO3+6HCl==3S↓+6NaCl+3H2O 19、二氧化硫+澄清石灰水:_______________________________________________; SO2+Ca(OH)2==CaSO3↓+H2O 20、过量的二氧化硫+氢氧化钙:___________________________________________; 2SO2+Ca(OH)2==Ca(HSO3)2 21、盐酸+亚硫酸钙:____________________________________________________; 2HCl+CaSO3==CaCl2+SO2↑+H2O 22、实验室制二氧化硫:_________________________________________________; Na2SO3+H2SO4(浓)==Na2SO4+SO2↑+H2O 23、二氧化硫的催化氧化:_______________________________________________; 2SO2+O2==(可逆,催化剂,加热)2SO3 +Q 24、亚硫酸钠在空气中氧化:_______________________________________________; 2Na2SO3+O2==2Na2SO4 25、二氧化硫和氯气溶于水(溴单质、碘单质):______________________________________; SO2+Cl2+2H2O==H2SO4+2HCl 26、二氧化硫+次氯酸钠:_________________________________________________; SO2+NaClO+H2O==H2SO4+NaCl 27、铜和浓硫酸:_________________________________________________________; Cu+2H2SO4(浓)==(加热)CuSO4+SO2↑+2H2O 28、碳和浓硫酸:_________________________________________________________; C+2H2SO4(浓)==(加热)CO2↑+2SO2↑+2H2O 29、胆矾和浓硫酸:______________________________________________________; CuSO4·5H2O==(浓硫酸)CuSO4+5H2O 30、蔗糖和浓硫酸:______________________________________________________; C12H22O11==(浓硫酸)12C+11H2O 31、碘化氢(溴化氢)和浓硫酸:________________________________________________; 2HI+H2SO4(浓)==I2+SO2+2H2O 32、硫化氢和浓硫酸:____________________________________________________; H2S+H2SO4(浓)==S↓+SO2+2H2O 33、沸腾炉中的反应(工业制硫酸第一步):_________________________________________; 4FeS2+11O2==(煅烧)2Fe2O3+8SO2  
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