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Na2S + 2 HNO3 = 2 Na(NO3) + H2S
C2H2 + Br2 = C2Br4H2 =>
C2H2 + 2 Br2 = C2Br4H2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
**4FeS2 + O2 = *2Fe2O3 + SO2 =>
**4FeS2 + 11 O2 = *2Fe2O3 + 8 SO2
HCl + Na2O = NaCl + H2O =>
2 HCl + Na2O = 2 NaCl + H2O
FeCl2*4H2O + FeCl3*6H2O + NH4OH = Fe3O4 + NH4Cl + H2O =>
FeCl2*4H2O + 2 FeCl3*6H2O + 8 NH4OH = Fe3O4 + 8 NH4Cl + 20 H2O
CuCl2 + Fe(OH)2 = FeCl2 + Cu(OH)2 =>
CuCl2 + Fe(OH)2 = FeCl2 + Cu(OH)2
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
CH3OH + H2O2 = H2CO + H2O =>
CH3OH + H2O2 = H2CO + 2 H2O
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
H2(g)(s) + F2(l) = HF(aq) =>
H2(g)(s) + F2(l) = 2 HF(aq)
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
HCl + Co(HCO3)3 = CoCl3 + H2O + CO2 =>
3 HCl + Co(HCO3)3 = CoCl3 + 3 H2O + 3 CO2
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
Al + (BrO4)1{-} + H{+} = Al3{+} + Br2 + H2O =>
42 Al + 2(BrO4)1{-} + 16 H{+} = 14 Al3{+} + Br2 + 8 H2O
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
Mn + Bi = BiMn3 =>
3 Mn + Bi = BiMn3
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
C12H3 + O2 = CO2 + H2O =>
4 C12H3 + 51 O2 = 48 CO2 + 6 H2O
Fe3 + CuSO4 = Cu + Fe2(SO4)3 =>
2 Fe3 + 9 CuSO4 = 9 Cu + 3 Fe2(SO4)3
H2O(I) + CO2 = H2CO3 + I =>
H2O(I) + CO2 = H2CO3 + I
Cu + Zn(SO4)2 = CuSO4 + Zn =>
2 Cu + Zn(SO4)2 = 2 CuSO4 + Zn
C6H6O3 + O2 = CO2 + H2O =>
C6H6O3 + 6 O2 = 6 CO2 + 3 H2O
CH2O + KMnO4 + KOH = K2CO3 + H2O + K2MnO4 =>
CH2O + 4 KMnO4 + 6 KOH = K2CO3 + 4 H2O + 4 K2MnO4
NaHCO3 + SO4 = Na2SO4 + HCO3 =>
2 NaHCO3 + SO4 = Na2SO4 + 2 HCO3
Ba(OH)2 + HNO = Ba(NO)2 + H2O =>
Ba(OH)2 + 2 HNO = Ba(NO)2 + 2 H2O
Al2O3(g) + C(s) = Al(s) + CO2(g) =>
2 Al2O3(g) + 3 C(s) = 4 Al(s) + 3 CO2(g)
K3Po4 + CaCl2 = Ca3(Po4)2 + KCl =>
2 K3Po4 + 3 CaCl2 = Ca3(Po4)2 + 6 KCl
Ba + Na3(PO4) = Ba3(PO4)2 + Na =>
3 Ba + 2 Na3(PO4) = Ba3(PO4)2 + 6 Na
Li2O + HNO3 = LiNO3 + H2O =>
Li2O + 2 HNO3 = 2 LiNO3 + H2O
NaCl + KNo3 = NaNo3 + KCl =>
NaCl + KNo3 = NaNo3 + KCl
NH4I + NaBr = NaI + NH4Br =>
NH4I + NaBr = NaI + NH4Br
C4H5O4 + O2 = CO2 + H2O =>
4 C4H5O4 + 13 O2 = 16 CO2 + 10 H2O
[Cr(OH2)6]{+2} + O2 = [Cr(OH)5OH]{+2} + H2O =>
2[Cr(OH2)6]{+2} + 3 O2 = 2[Cr(OH)5OH]{+2} + 6 H2O
N2 + O2 = N4O8 =>
2 N2 + 4 O2 = N4O8
W + O2 = W2O5 =>
4 W + 5 O2 = 2 W2O5
C2H6O + K2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4)3 + K2SO4 + H2O =>
3 C2H6O + 2 K2Cr2O7 + 8 H2SO4 = 3 CH3COOH + 2 Cr2(SO4)3 + 2 K2SO4 + 11 H2O
Co(CH3COO)2 + K2S = CoS + KCH3COO =>
Co(CH3COO)2 + K2S = CoS + 2 KCH3COO
As2S3 + HNO3 = H3AsO4 + SO2 + NO + H2O =>
3 As2S3 + 22 HNO3 = 6 H3AsO4 + 9 SO2 + 22 NO + 2 H2O
NH4OH + FeCl3 = NH4Cl + Fe(OH)3 =>
3 NH4OH + FeCl3 = 3 NH4Cl + Fe(OH)3
C5H5N + BCl3 = C5H5NCl + BCl2 =>
C5H5N + BCl3 = C5H5NCl + BCl2
Fe + C1 = FeC13 =>
Fe + 13 C1 = FeC13
Ge + NH4ClO4 = Ge2O3 + GeCl3 + NO + H2O =>
3 Ge + 3 NH4ClO4 = Ge2O3 + GeCl3 + 3 NO + 6 H2O
K2CO3 + HNO3 = KNO3 + H2CO3 =>
K2CO3 + 2 HNO3 = 2 KNO3 + H2CO3
H2S + Br2 = HBr + S8 =>
8 H2S + 8 Br2 = 16 HBr + S8
Mg3Na + O2 = MgO + Na2O =>
4 Mg3Na + 7 O2 = 12 MgO + 2 Na2O
NaCl + AgOH = Na(OH) + AgCl =>
NaCl + AgOH = Na(OH) + AgCl
CH3CHBrCH3 + KOH = CH3CH2CH2OH + KBr =>
CH3CHBrCH3 + KOH = CH3CH2CH2OH + KBr
Ba + Li2SO4 = Li2 + BaSO4 =>
Ba + Li2SO4 = Li2 + BaSO4
KI + Fe(OH)2 = KOH + FeI2 =>
2 KI + Fe(OH)2 = 2 KOH + FeI2
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