1) CuCl2 + 2NaOH - -> Cu(OH)2 + 2NaCl
2) Fe (NO3)3 + 3NaOH - -> Fe(OH)3 + 3NaNO3
3) P2O5 + 3H2O - -> 2H3PO4
4) 2Al + 3H2SO4 - -> Al2(SO4)3 + 3H2
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
Fe +O2 -Fe3O4
Zn +HCl - ZnCl2 +H2
CuCl2 - NaOH - Cu(OH)2 + NaCl
Al +H2SO4 - Al2(SO4)3 +H2
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
1) MgCl2 + KOH ⟶ Mg(OH)2 + KCl
2) Cu(OH)2 + HCl ⟶ CuCl2 + H2O
3) Cu(OH)2 + H2SO4 ⟶ CuSO4 + H2O
4) FeO + HCl ⟶ FeCl2 + H2O
5) Fe2O3 + H2SO4 ⟶ Fe2(SO4)3 + H2O
6) Cu(NO3)2 + NaOH ⟶ Cu(OH)2 + NaNO3
7) P + O2 ⟶ P2O5
8) N2 + O2 ⟶ NO
9) NO + O2 ⟶ NO2
10) NO2 + O2 + H2O ⟶ HNO3
12 ?+O2----NaOH+H2
13 Fe+?-----FeCl2+H2
14Na+H2O-----NaOH+H2
15?+HCL------ZnCl2+H2
16 CXHy+O2------Co2+H2O
17 P2O5+H2O-------H3PO4
18 Fe2(SO4)3+KOH--------Fe(OH)3+K2SO4
19 Fe+Cl2-------Fecl3
20 CnH2n-2+O2-------CO2+H2O
21 N2O5+H2O------HNO3
22 FeCL3+NaOH-------Fe(OH)3+NaCL
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:
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
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
Lập PTHH Của các phản ứng sau Và cho biết tỉ lệ 1 cặp chất(tùy ý) 1) Zn + O2 -----> ZnO 2)Fe + Cl2 ------> FeCl3 3)CU + AgNO3 Cu(NO3)2 +Ag 4)Fe2O3 + H2 -----> Fe + H2O 5)Cu(NO3)2 -------> CuO +NO2 +O2 6)Na + H2O ------> NaOH +H2 7)Al(NO3)3 ------> AlO3 +NO2 +O2 8)KClO3 -------> KCl +O2 9)NaHCO3 ------> Na2CO3 + CO2 + H2O 10)Fe(OH)2 + O2 ------> Fe2O3 + H2O
