高中化学必修之反应物足量与不足量的方程式
来源:文书网 2.6W
2+Ca2+2OH-=CaCo3↓+H2O
OH-+CO2=HCO
2+2OH-=SO +H2O
SO2+OH-=HSO
+Ca2++OH-=CaCO3↓+H2O
2HCO +Ca2++2OH-=CaCO3↓+2H2O+CO
2++OH-+H++SO = BaSO4↓+H2O
Ba2++2OH-+2H+SO =BaSO4↓+2H2O
-+Mg2++HCO =MgCO3↓+ H2O
2OH-+Mg2++2HCO =MgCO3↓+2H2O+CO
6. 2Al3++3SO 3Ba2++6OH-=2Al(OH)3↓+3BaSO4↓
Al3++2SO +2Ba2++4OH-=2BaSO4↓+AlO
7.H++NH +SO +Ba2++2OH-=NH3H2O+BaSO4↓+H2O
SO +2H++2OH-+Ba2+=BaSO4↓+2H2O
+OH-=SO +H2O
NH +HSO +2OH-=NH3H2O+H2O+SO
+OH-=CO +H2O
NH +HCO +2OH-=NH3H2O+H2O
10.H2S+2OH-=H2O+S2-
H2S+OH-+=H2O+HS-
++NH3H2O=AgOH↓+NH
Ag++NH3H2O=Ag(NH3)
12.S2-+2Fe3+=S↓+2Fe2+