九年级常见的化学方程式1.NH4HCO3NH3↑+CO2↑+H2O2.2KMnO4K2MnO4+MnO2+O2↑3.2H2+O22H2O4.2H2O2H2↑+O2↑5.2H2O22H2O+O2↑6.2C+O22CO7.CO2+C2CO8.CO2+H2O═H2CO39.CO2+Ca(OH)2CaCO3↓+H2O10.CO2+2NaOHNa2CO3+H2O11.Ca(OH)2+Na2CO3═CaCO3↓+2NaOH12.Na2CO3+2HCl═2NaCl+H2O+CO2↑13.C+O2CO214.S+O2SO215.4P+5O22P2O516.3Fe+2O2Fe3O417.4Al+3O22Al2O318.2Cu+O22CuO19.2Mg+O22MgO20.CaCO3CaO+CO2↑21.CaCO3+2HCl═CaCl2+H2O+CO2↑22.2CO+O22CO223.Cu2(OH)2CO32CuO+H2O+CO2↑24.CH4+2O2CO2+2H2O25.C2H5OH+3O22CO2+3H2026.Fe+H2SO4═FeSO4+H2↑27.Fe+2HCl═FeCl2+H2↑28.Fe2O3+3H2SO4═Fe2(SO4)3+3H2O29.Zn+2HCl═ZnCl2+H2↑30.Zn+H2SO4═ZnSO4+H2↑31.Fe2O3+6HCl═2FeCl3+3H2O32.Fe2O3+3CO2Fe+3CO233.Mg+2HCl═MgCl2+H2↑34.Mg+H2SO4═MgSO4+H2↑35.2Al+3H2SO4═Al2(SO4)3+3H2↑36.2Al+6HCl═2AlCl3+3H2↑37.CuSO4+2NaOH═Cu(OH)2↓+Na2SO438.CuSO4+Ca(OH)2Cu(OH)2↓+CaSO439.NaOH+HCl═NaCl+H2O40.Ca(OH)2+H2SO4CaSO4+2H2O41.CaO+H2OCa(OH)2
