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2 HNO3 + Cu = Cu(NO3)2 + 2 H
FeS + CO = Fe2O3 + C + S =>
2 FeS + 3 CO = Fe2O3 + 3 C + 2 S
N2H4 + K2MnO4 + H2SO4 = N2 + MnSO4 + K2SO4 + H2O =>
N2H4 + K2MnO4 + 2 H2SO4 = N2 + MnSO4 + K2SO4 + 4 H2O
CaCO3 + HNO2 = Ca(NO2)2 + H2O + CO2 =>
CaCO3 + 2 HNO2 = Ca(NO2)2 + H2O + CO2
ZnSO4 + NH4OH = [Zn(NH3)4](OH)2 + (NH4)2SO4 + H2O =>
ZnSO4 + 6 NH4OH = [Zn(NH3)4](OH)2 + (NH4)2SO4 + 4 H2O
Al + OH{-} + NO3{-} + H2O = AlO2{-} + NH3 =>
8 Al + 5 OH{-} + 3 NO3{-} + 2 H2O = 8 AlO2{-} + 3 NH3
Cr + H2SO3 + H{+} = S + H2O + Cr{3+} =>
4 Cr + 3 H2SO3 + 12 H{+} = 3 S + 9 H2O + 4 Cr{3+}
(CH3COO)2Zn + Na2SO3 = CH3COONa + ZnSO3 =>
(CH3COO)2Zn + Na2SO3 = 2 CH3COONa + ZnSO3
HI + H2SO4 = HIO3 + H2S =>
4 HI + 3 H2SO4 = 4 HIO3 + 3 H2S
Ba(g) + O2(g) = BaO(s) =>
2 Ba(g) + O2(g) = 2 BaO(s)
Mg + LiClO4 = MgClO4 + Li =>
Mg + LiClO4 = MgClO4 + Li
KNO4 = KNO2 + O2 =>
KNO4 = KNO2 + O2
Hg2Cl2 = Hg + HgCl2 =>
Hg2Cl2 = Hg + HgCl2
C3H6 + KMnO4 + H2SO4 = CH3COOH + K2SO4 + MnSO4 + H2O =>
10 C3H6 + 12 KMnO4 + 18 H2SO4 = 15 CH3COOH + 6 K2SO4 + 12 MnSO4 + 18 H2O
HCl + K2SO4 = KCl + H2 + SO4 =>
2 HCl + K2SO4 = 2 KCl + H2 + SO4
Pb(NO3)2 + Cu = Cu(NO3)3 + Pb =>
3 Pb(NO3)2 + 2 Cu = 2 Cu(NO3)3 + 3 Pb
H2SO3 + Al(OH)3 = Al + (SO3)3 + H2O =>
3 H2SO3 + 2 Al(OH)3 = 2 Al + (SO3)3 + 6 H2O
Na2(CO3) + K3Po4 = Na3(Po4) + K2CO3 =>
3 Na2(CO3) + 2 K3Po4 = 2 Na3(Po4) + 3 K2CO3
FeCl3 + AgNo3 = AgCl3 + FeNo3 =>
FeCl3 + AgNo3 = AgCl3 + FeNo3
NH4Cl + HCl = NH4 + HCl3 =>
2 NH4Cl + HCl = 2 NH4 + HCl3
Fe(ClO3)2 = Fe + ClO3 =>
Fe(ClO3)2 = Fe + 2 ClO3
PbSO4 = O2 + PbSO3 =>
2 PbSO4 = O2 + 2 PbSO3
CU + Cl = CUCl2 =>
CU + 2 Cl = CUCl2
KI + HSO4 = I2 + H2S + K2SO4 + H2O =>
18 KI + 10 HSO4 = 9 I2 + H2S + 9 K2SO4 + 4 H2O
Al(PO4)(aq) + Zn(s) = Zn(s)(PO4)2(aq) + Al(s) =>
2 Al(PO4)(aq) + Zn(s) = Zn(s)(PO4)2(aq) + 2 Al(s)
C3H6Br2 + KOH = C3H4 + KBr + H2O =>
C3H6Br2 + 2 KOH = C3H4 + 2 KBr + 2 H2O
Fe(Cl)3 + NH3 + H2O = Fe(OH)3 + NH4Cl =>
Fe(Cl)3 + 3 NH3 + 3 H2O = Fe(OH)3 + 3 NH4Cl
C3H7 + Br2 = C3H6Br + HBr =>
C3H7 + Br2 = C3H6Br + HBr
MoO3(s) + H2(g) = Mo2O3 + H2O =>
2 MoO3(s) + 3 H2(g) = Mo2O3 + 3 H2O
Se + O2 = Se2O3 =>
4 Se + 3 O2 = 2 Se2O3
BrO + NaOH = Na2BrO2 + H2O =>
BrO + 2 NaOH = Na2BrO2 + H2O
Cu + P = Cu2P =>
2 Cu + P = Cu2P
Fe + H2O + FeSiO = Fe2SiO4 + H2 =>
Fe + 3 H2O + FeSiO = Fe2SiO4 + 3 H2
Al2O3 + Ca = Al + CaO =>
Al2O3 + 3 Ca = 2 Al + 3 CaO
FeBr2 + ZnSO4 = ZnBr2 + FeSO4 =>
FeBr2 + ZnSO4 = ZnBr2 + FeSO4
NH4Cl + CO2 + H2O = NH4HCO3 + HCl =>
NH4Cl + CO2 + H2O = NH4HCO3 + HCl
H2 + N2O = NH3 + H2O =>
4 H2 + N2O = 2 NH3 + H2O
NaNO3 + HClO4 = NaClO4 + HNO3 =>
NaNO3 + HClO4 = NaClO4 + HNO3
Ni3S2 + H2SO4 = Ni3SO4 + H2S2 =>
Ni3S2 + H2SO4 = Ni3SO4 + H2S2
Na2S + HNO3 = NaNO3 + NO + S + H2O =>
3 Na2S + 8 HNO3 = 6 NaNO3 + 2 NO + 3 S + 4 H2O
H2SO4 + (NaCl) = NaHSO4 + HCl =>
H2SO4 + (NaCl) = NaHSO4 + HCl
Se + O2 = Se2O3 =>
4 Se + 3 O2 = 2 Se2O3
Mg2SiO4 + HCl = MgCl + H2SiO4 =>
Mg2SiO4 + 2 HCl = 2 MgCl + H2SiO4
NH3 + Hg2Cl2 = HgNH2Cl + Hg + NH4{+} + Cl{-} =>
2 NH3 + Hg2Cl2 = HgNH2Cl + Hg + NH4{+} + Cl{-}
Mn + H(NO3) = NO2 + Mn(NO3)2 + H2O =>
Mn + 4 H(NO3) = 2 NO2 + Mn(NO3)2 + 2 H2O
Bi2O3 + Br2 + KOH = H2O + KBr + KBiO3 =>
Bi2O3 + 2 Br2 + 6 KOH = 3 H2O + 4 KBr + 2 KBiO3
NH2{-} + H2O = NH{2-} + H3O{+} =>
NH2{-} + H2O = NH{2-} + H3O{+}
CH2Cl2 + H2O = HCHO + HCl =>
CH2Cl2 + H2O = HCHO + 2 HCl
NaCl(aq) + CuSO4 = Na2SO4(aq) + CuCl2(s) =>
2 NaCl(aq) + CuSO4 = Na2SO4(aq) + CuCl2(s)
NaNO3(s) + (NH4)2(SO4)(s) = Na2SO4(s) + H2O(g) + N2O(g) =>
2 NaNO3(s) + (NH4)2(SO4)(s) = Na2SO4(s) + 4 H2O(g) + 2 N2O(g)
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