Bài tập cân bằng phản ứng

CÂN BẰNG PHƯƠNG TRÌNH HÓA HỌC
Na2O + H2O ( NaOH
K2O + H2O ( KOH
BaO + H2O ( Ba(OH)2
SO2 + H2O ( H2SO3
SO3 + H2O ( H2SO4
N2O5 + H2O ( HNO3
P2O5 + H2O ( H3PO4
Cl2 + H2O ( HCl + HClO
SO2 + Br2 ( H2SO4 + HBr
K2O + P2O5 ( K3PO4
Al2O3 + HCl ( AlCl3 + H2O
Fe2O3 + H2SO4 ( Fe2(SO4)3 + H2O
ZnO + HNO3 ( Zn(NO3)2 + H2O
Na2O + H3PO4 ( Na3PO4 + H2O
CO2 + NaOH ( Na2CO3 + H2O
SO2 + NaOH ( Na2SO3 + H2O
P2O5 + Ba(OH)2 ( Ba3(PO4)2 + H2O
KOH + H2SO4 ( K2SO4 + H2O
K3PO4 + MgSO4 ( K2SO4 + Mg3(PO4)2
Al2(SO4)3 + Ba(NO3)2 ( Al(NO3)3 + BaSO4
Na + H2O ( NaOH + H2
Fe + Cl2 ( FeCl3
Cu + O2 ( CuO
Fe + O2 ( Fe3O4
Fe + O2 ( Fe2O3
H2S + O2 ( SO2 + H2O
FeS + O2 ( Fe2O3 + SO2
Mg + HCl ( MgCl2 + H2
Al + H2SO4 ( Al2(SO4)3 + H2
Zn + H3PO4 ( Zn3(PO4)3 + H2
Mg + Fe2(SO4)3 ( MgSO4 + Fe
Fe3O4 + C ( FeO + CO2
Fe2O3 + Al ( Fe + Al2O3
Fe3O4 + H2 ( Fe + H2O
Fe3O4 + HCl ( FeCl2 + FeCl3 + H2O