1,
2Na2SO3+ 2KMnO4+ 3H2SO4➝ 5Na2SO4 + K2SO4+ 2MnSO4 + 3H2O
2,
8Al + 30HNO3➝ 8Al(NO3)3+ 3NH4NO3+ 9H2O
3,
2HNO2 + H2S ➝ 2NO + S + 2H2O
4,
Cl2 + 2KOH➝ KCl + KClO + H2O
5,
K2Cr2O7 + 14HCl➝ 2KCl + 2CrCl3 + 3Cl2+ 7H2O
1,
2Na2SO3+ 2KMnO4+ 3H2SO4➝ 5Na2SO4 + K2SO4+ 2MnSO4 + 3H2O
2,
8Al + 30HNO3➝ 8Al(NO3)3+ 3NH4NO3+ 9H2O
3,
2HNO2 + H2S ➝ 2NO + S + 2H2O
4,
Cl2 + 2KOH➝ KCl + KClO + H2O
5,
K2Cr2O7 + 14HCl➝ 2KCl + 2CrCl3 + 3Cl2+ 7H2O
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
Cân bằng các phản ứng hóa học sau
Mg+HNO3--->Mg(NO3)2+NH4NO3+H2O
FeSO4+Cl2+H2SO4--->Fe2(SO4)3+HCl
K2Cr2O7+KI+H2SO4--->Cr2(SO4)3+I2+K2SO4+H2O
Fe(NO3)2+HNO3--->Fe(NO3)3+NO+H2O
KI+KClO3+H2SO4--->K2SO4+I2+KCl+H2O
Fe3O4+H2SO4--->Fe2(SO4)3+SO2+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
Zn + HNO3 -> Zn(NO3)2 + NH4NO3 + H20
K2Cr2O7 + HCl -> KCl + CrCl3 + Cl2 + H2O
giúp mình phân tích phân tử và nguyên tử
1, 4Al + 3O2 2Al2O3
2,Al + Cl2 AlCl3
3,2Al(OH)3+3H2SO4 Al2(SO4)3 + 6H2O
4, 2C2H2 + 5O2 4CO2 + 2H2O
5, Na2SO4 + BaCl2 2NaCl + BaSO4
6, 4Al + 3O2 2Al2O3
7, K + Cl2 KCl
8,Al(OH)3 + HNO3 Al(NO3)3 + H2O
9, 4FeS2 + 11O2 2Fe2O3 + 8SO2
10, K2SO4 + BaCl2 2KCl + BaSO4
11, 4FeS + 7O2 2Fe2O3 + 4SO2
12, K + H2O KOH + H2
13, Na + H2O NaOH + H2
14, Al(OH)3 + H2SO4 Al2(SO4)3 + H2O
15, 2Fe(OH)3 + 3H2SO4 Fe2(SO4) + 6H2O
16, Fe(OH)3 + HCl FeCl3 + H2O
giúp mình phân tích phân tử và nguyên tử
1, 4Al + 3O2 2Al2O3
2,Al + Cl2 AlCl3
3,2Al(OH)3+3H2SO4 Al2(SO4)3 + 6H2O
4, 2C2H2 + 5O2 4CO2 + 2H2O
5, Na2SO4 + BaCl2 2NaCl + BaSO4
6, 4Al + 3O2 2Al2O3
7, K + Cl2 KCl
8,Al(OH)3 + HNO3 Al(NO3)3 + H2O
9, 4FeS2 + 11O2 2Fe2O3 + 8SO2
10, K2SO4 + BaCl2 2KCl + BaSO4
11, 4FeS + 7O2 2Fe2O3 + 4SO2
12, K + H2O KOH + H2
13, Na + H2O NaOH + H2
14, Al(OH)3 + H2SO4 Al2(SO4)3 + H2O
15, 2Fe(OH)3 + 3H2SO4 Fe2(SO4) + 6H2O
16, Fe(OH)3 + HCl FeCl3 + 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
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
Giúp mk cân bằng mấy phương trình này ạ
1.Fe+HNO3------>Fe(NO3)3+N2O+H2O
2.Al+HNO3------->Al(NO3)3+N2+H2O
3.Fe(OH)2 +HNO3-------->Fe (NO3)3 +NO+H2O
cân bằng các phân tử sau cho biết tỉ lệ phản ứng:
a,Al+Cl2---->AlCl3
b,Ca+H2o---->Ca(OH)2+H2
c,H2So4+H2S----->S+H2O
d,So2+O2---->So3
e,(NH4)Co3----->Na2Co3+Nh3+H2O
g,Fe+HnO3----->Fe(NO3)3+NO2+H2O