Ba(NO3)2+Na2SO4--->BaSO4+2NaNO3
K2CO3+H2SO4--->K2SO4+CO2(газ)+H2O
KOH+H2SO4--->K2SO4+H2O
CuO+HNO3--->Cu(NO3)2+H2O
Zn+CuSO4--->ZnSO4+Cu
Ba(NO3)2+Na2SO4--->BaSO4+2NaNO3
K2CO3+H2SO4--->K2SO4+CO2(газ)+H2O
KOH+H2SO4--->K2SO4+H2O
CuO+HNO3--->Cu(NO3)2+H2O
Zn+CuSO4--->ZnSO4+Cu