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3 Na2S + 2 NaMnO4 + 4 H2O = 3 S + 2 MnO2 + 8 NaOH
BrO3 + H2O = Br + OH =>
BrO3 + 3 H2O = Br + 6 OH
Na2CO3(aq) + HBr(aq) = NaBr + H2O + CO2 =>
Na2CO3(aq) + 2 HBr(aq) = 2 NaBr + H2O + CO2
Li2O + H2S = Li2S + H2O =>
Li2O + H2S = Li2S + H2O
ZnS + C = Zn + SC =>
ZnS + C = Zn + SC
H2S + Ca(OH) = Ca2H4S3 + H2O =>
3 H2S + 2 Ca(OH) = Ca2H4S3 + 2 H2O
Al2O3(s) + HNO3(aq) = Al(NO3)3(aq) + H2O(l) =>
Al2O3(s) + 6 HNO3(aq) = 2 Al(NO3)3(aq) + 3 H2O(l)
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
CrCl3 + KI = CrCl2 + I2 + KCl =>
2 CrCl3 + 2 KI = 2 CrCl2 + I2 + 2 KCl
CuBr + AgNO3 + HNO3 = Cu(NO3)2 + AgBr + H2 =>
2 CuBr + 2 AgNO3 + 2 HNO3 = 2 Cu(NO3)2 + 2 AgBr + H2
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
NH4I + F2 = NH4F + I2 =>
2 NH4I + F2 = 2 NH4F + I2
V2O5 + Zn + H2SO4 = VO + H2O + ZnSO4 =>
V2O5 + 3 Zn + 3 H2SO4 = 2 VO + 3 H2O + 3 ZnSO4
Sb2S3 + H2O2 + NH4OH = (NH4)3SbO4 + (NH4)2SO4 + H2O =>
Sb2S3 + 14 H2O2 + 12 NH4OH = 2(NH4)3SbO4 + 3(NH4)2SO4 + 20 H2O
KMnO4 = K2MnO4 + MnO2 + O2 =>
2 KMnO4 = K2MnO4 + MnO2 + O2
Sr + PO4 = SrPO4 =>
Sr + PO4 = SrPO4
CH3MgCl + SiCl4 = CH3SiCl3 + MgCl2 =>
CH3MgCl + SiCl4 = CH3SiCl3 + MgCl2
Cd + NaOH + H2O = Na2[Cd(OH)4] + H2 =>
Cd + 2 NaOH + 2 H2O = Na2[Cd(OH)4] + H2
AgCn + K = KCn + Ag =>
AgCn + K = KCn + Ag
Mn + HI = H2 + MnI3 =>
2 Mn + 6 HI = 3 H2 + 2 MnI3
CH2Cl2 = CH2 + Cl2 =>
CH2Cl2 = CH2 + Cl2
H2(g) = H(g) =>
H2(g) = 2 H(g)
Fe + CuSO4 = FeSO4 + Cu =>
Fe + CuSO4 = FeSO4 + Cu
CuSO4 + KOH = Cu(OH)2 + K2SO4 =>
CuSO4 + 2 KOH = Cu(OH)2 + K2SO4
BaSO4 + C = BaS + CO =>
BaSO4 + 4 C = BaS + 4 CO
CuS + FeCl3 = CuCl2 + FeCl2 + S =>
CuS + 2 FeCl3 = CuCl2 + 2 FeCl2 + S
Zn + H(NO3) = Zn(NO3)2 + N2O + H2O =>
4 Zn + 10 H(NO3) = 4 Zn(NO3)2 + N2O + 5 H2O
Fe + H2SiO3 = Fe(SiO3) + H2 =>
Fe + H2SiO3 = Fe(SiO3) + H2
Mn + H2SO4 = Mn2HSO4 + H2 =>
4 Mn + 2 H2SO4 = 2 Mn2HSO4 + H2
(NH4)3PO4(aq) + Ba(C2H3O2)2(aq) = NH4C2H3O2(aq) + Ba3(PO4)2(s) =>
2(NH4)3PO4(aq) + 3 Ba(C2H3O2)2(aq) = 6 NH4C2H3O2(aq) + Ba3(PO4)2(s)
Al(s) + H2O(l) = Al(OH)3(aq) + H2(g) =>
2 Al(s) + 6 H2O(l) = 2 Al(OH)3(aq) + 3 H2(g)
FeNH4(SO4)2 + Na4SiO4 + H2O = Fe(OH)3 + NH3 + Na2SO4 + H4SiO4 =>
FeNH4(SO4)2 + Na4SiO4 + 3 H2O = Fe(OH)3 + NH3 + 2 Na2SO4 + H4SiO4
Li2S + O2 = SO2 + Li2O =>
2 Li2S + 3 O2 = 2 SO2 + 2 Li2O
K2CO3 + C6H8O6 = C6H7KO6 + CO2 + H2O =>
K2CO3 + 2 C6H8O6 = 2 C6H7KO6 + CO2 + H2O
NH4Br + I2 = NH4I + Br =>
2 NH4Br + I2 = 2 NH4I + 2 Br
Zn(s) + H2SO4(Ac) = ZnSO4(Ac) + H2(g) =>
Zn(s) + H2SO4(Ac) = ZnSO4(Ac) + H2(g)
AlOHSO4 + H2O = [Al(OH)2]2SO4 + H2SO4 =>
2 AlOHSO4 + 2 H2O = [Al(OH)2]2SO4 + H2SO4
[Cr(H2O)6]Cl3 + Zn = [Cr(H2O)6]Cl2 + ZnCl2 =>
2[Cr(H2O)6]Cl3 + Zn = 2[Cr(H2O)6]Cl2 + ZnCl2
Cr(NO3)3 + Fe = Fe(NO3)3 + Cr =>
Cr(NO3)3 + Fe = Fe(NO3)3 + Cr
Pb(ClO3)2 + Na2SO4 = PbSO4 + NaClO3 =>
Pb(ClO3)2 + Na2SO4 = PbSO4 + 2 NaClO3
P2O5 + NaOH = Na2HPO4 + H2O =>
P2O5 + 4 NaOH = 2 Na2HPO4 + H2O
HNO3 + SnS = SnO2 + NO2 + H2SO4 + H2O =>
10 HNO3 + SnS = SnO2 + 10 NO2 + H2SO4 + 4 H2O
C2N2 + KOH = KCN + KCNO + H2O =>
C2N2 + 2 KOH = KCN + KCNO + H2O
Na2SO3 + KHSO4 = Na2SO4 + K2SO4 + H2O + SO2 =>
Na2SO3 + 2 KHSO4 = Na2SO4 + K2SO4 + H2O + SO2
HOCl + NaHSO3 = NaCl + H2SO4 =>
HOCl + NaHSO3 = NaCl + H2SO4
Fe + SO4 = (Fe)2(SO4)3 =>
2 Fe + 3 SO4 = (Fe)2(SO4)3
MnO4 + HCOOH = MnO2 + CO2 + H2O =>
MnO4 + 2 HCOOH = MnO2 + 2 CO2 + 2 H2O
FeCl3 + HCl = Fe(Cl4)3 + H2 =>
2 FeCl3 + 18 HCl = 2 Fe(Cl4)3 + 9 H2
Cl + OH = ClO2 + H2O =>
Cl + 4 OH = ClO2 + 2 H2O
P2O5 = P + O =>
P2O5 = 2 P + 5 O
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