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			  NH4HSO4+NH4HSO3=(NH4)2SO4+H2O+SO2↑             | 
                
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			  SO2+2HgCl2+2H2O=Hg2Cl2↓+H2SO4+2HCl             | 
                
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			  Hg2Cl2+SnCl2+2 HCl=2Hg↓+H2SnCl6             | 
                
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			  H2SnCl6+6NaOH=6NaCl+Sn(OH)4↓+2H2O             | 
                
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			  HC♡CH+H2O=催化劑=CH2=CHOH             | 
                
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			  CH2=CHOH+H2O=催化劑=HOCH2CH2OH             | 
                
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			  HOCH2CH2OH+2O2=銅、加熱=HOOCCOOH+2H2O             | 
                
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			  HOOCCOOH+2KOH=KOOCCOOK+2H2O             | 
                
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			  KOOCCOOK+FeCl2=2KCl+FeC2O4↓             | 
                
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			  FeC2O4=160℃=FeO+CO↑+CO2↑             |