Na2O+H20 --> 2NaOH
SO2+H2O --> H2SO3
NaOH+HCl --> NaCl+H2O
2Al(OH)3+3H2SO4 --> Al2(SO4)3+3H20
NaO2 + H2O -> 2NaOH
SO2 + H20 -> H2SO3
2NaOH + 2HCl -> 2NaCl + 2H2O
2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O
Hoàn thành PTHH của các phản ứng sau a) ? + ? ——>FeCl3 b)Al+HCl——>H2+? c)Mg+H2SO4——>?+H2 d)NaOH+CO2——>? e)Fe2O3+HCl——>FeCl3+? f)?+?——>NH3 g)?+?——>H2O Mn giúp em với ạ
hoàn thành các pư và cân bằng
bao+h2o= so2+ba(oh)2= h2so4+bacl2=
al2o3+hcl= fe+hcl= naoh+al2(so4)3=
bao+co2= fe(oh)3+hcl= mg(oh)2=
fe3o4+hcl= al(oh)3+h2so4= al(oh)3=
co2+naoh= na2co3+hcl= na2so4+bacl2=
caco3= aloh+nahso3= naoh+al+h2o=
nacl+agno3= naoh+ca(hso4)2= naoh+al2o3=
fe+agno3= naoh+(nh4)2so4= naoh+al(oh)3=
naoh+zn(oh)2=
na2so3+hcl=
lập PTHH theo các sơ đồ sau:
NH4NO3+NaOH-->NaNO3+NH3+H2O
(NH4)2CO3+NaOH-->Na2CO3+NH3+H2O
(NH4)2SO4+KOH-->K2SO4+NH3+H2O
(NH4)2SO4+Ba(OH)2-->BaSO4+NH3+H2O
NH4NO3+Ba(OH)2-->BaNO3+NH3+H2O
Fe2(SO4)3+Ba(NO3)2-->BASO4+FE(NO3)3
Al2(SO4)3+Ba(OH)2-->Al(OH)3+BaSO4
Fe(NO3)2+NAOH-->Fe(OH)2+NaNO3
Al2O3+HNO3-->Al(NO3)3+H2O
Fe2O3+HNO3-->FE(NO3)3+H2O
Fe3O4+HCl-->FeCl2+FeCl3+H2O
CO2+Ba(OH)2-->Ba(HCO3)2
CO2+Ca(OH)2-->Ca(HCO3)2
CO2+NaOH-->NaHCO3
NaHCO3+H2SO4-->Na2SO4+CO2+H2O
Ba(HCO3)2+HCl-->NaCl+CO2+H2O
Ba(HCO3)2+H2SO4-->BaSO4+CO2+H2O
BaCO3+HCl-->baCl2+CO2+H2O
lập pthh theo các sơ đồ sau:
Mg+H2SO4-->MgSO4+SO2+H2O
CA+H2SO4-->CaSO4+SO2+H2O
Al+HNO3-->Al(NO3)3+NO2+H2O
Al+HNO3-->Al(NO3)3+NO+H2O
Al+HNO3-->Al(NO3)3+N2O+H2O
Al+HNO3-->Al(NO3)3+N2+H2O
Al+HNO3-->Al(NO3)+NH4NO3+H2O
Al+H2SO4-->Al2(SO4)3+H2S+H2O
Al+H2SO4-->Al2(SO4)3
Fe+H2SO4-->Fe2(SO4)3+S+H2O
Fe+HNO3-->Fe(NO3)3+NO2+H2O
Fe+HNO3-->Fe(NO3)3+NO+H2O
Ca+HNO3-->Ca(NO3)2+NO+H2O
KClO3+HCl-->KCl+CL2+H2O
KMnO4+HCl-->MnCl2+KCl+Cl2+H2O
MnO2+HCl-->MnCl2+Cl2+H2O
Fe3O4+HCl-->FeCl2+FeCl3+H2O
Fe3O4+H2SO4-->FeSO4+Fe2(SO4)3+H2O
Fe3O4+CO-->Fe+CO2
Fe2O3+CO-->Fe+CO2
Hoàn thành PTHH từ sơ đồ sau:
a. K + H2O ---> KOH + H2
b. BaCl2 + Na2SO4 ---> BaSO4 + NaCl
c. Mg(NO3)2 + NaOH ---> Mg(OH)2 + NaNO3
d. Al(OH)3 ---> Al2O3 + H2O
lâph PTHH theo các sơ đồ sau :
Cu+HNO3-->Cu(NO3)2+NO+H2O
Cu+HNO3-->Cu(NO3)2+NO2+H2O
Fe+H2SO4-->Fe2(SO4)3+SO2+H20
Al+H2SO4-->Al2(SO4)3+SO2+H2O
Al+H2SO4-->Al2(SO4)3+S+H2O
Al+HNO3-->Al(NO3)3+NO+H2O
Al+HNO3-->Al(NO3)3+N2+H2O
Al+HNO3-->Al(NO3)3+NH4NO3+H2O
lập PTHH theo các sơ đồ sau:
CO2+NaOH-->Na2CO3+H2O
SO2+KOH-->K2SO3+H2O
SO2+Ba(OH)2-->BaSO3+H2O
SO3+NaOH-->Na2SO4+H2O
P2O5+NaOH-->Na3PO4+H2O
P2O5+NaOH+H2O-->Na2HPO4+H2O
P2O5+NaOH+H2O-->NaH2PO4
NaOH+H3PO4-->Na3PO4+H2O
NaOH+H3PO4-->Na2HPO4+H2O
NaOH+H3PO4-->NaH2PO4+H2O
(NH4)2CO3+Ca(OH)2-->CaCO3+NH3+H2O
(NH4)2SO4+Ca(OH)2-->CaSO4+NH3+H2O
NH4NO3+Ca(OH)2-->Ca(NO3)2+NH3+H2O
Cân bằng các PTHH sau :
FexOy + CO -----> FeO + CO2
CxHy + O2 -----> CO2 + H2O
Fe(OH)2y/x + O2 -----> Fe2O3 + H2O
FexOy + H2SO4 -----> Fe2(SO4)3 + SO2 + H2O
Fe(OH)2+O2+H2O -> Fe(OH)3 FeCl2+NAOH -> Fe(OH)2+NaCl MnO2+HBr -> Br2+ MnBr2 +H2O FeS2+O2 -> Fe2O3 + SO2 Cu + H2SO4 (đặc) -> CuSO4 +SO2+H2O
