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MnO2 + 4 HBr = MnBr2 + 2 H2O + Br2
H2Cr2O7 + HCl = CrCl4 + Cl2 + H2O =>
H2Cr2O7 + 12 HCl = 2 CrCl4 + 2 Cl2 + 7 H2O
Ca(OH)2 + S = CaS5 + CaSO4 + H2O =>
4 Ca(OH)2 + 16 S = 3 CaS5 + CaSO4 + 4 H2O
K3CrO3 + HCl = K3CrCl6 + H2O =>
K3CrO3 + 6 HCl = K3CrCl6 + 3 H2O
C2H5O + HCl = C2H4 + H2O + Cl =>
C2H5O + HCl = C2H4 + H2O + Cl
AgNO3 + CaCl2 = AgCl + Ca(NO3)2 =>
2 AgNO3 + CaCl2 = 2 AgCl + Ca(NO3)2
NO + H2 = NH3 + H2O =>
2 NO + 5 H2 = 2 NH3 + 2 H2O
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
CoF3 + Br2 = CoBr3 + F2 =>
2 CoF3 + 3 Br2 = 2 CoBr3 + 3 F2
Ba(OH)2(aq) + H2SO4(aq) = BaSO4 + H2O =>
Ba(OH)2(aq) + H2SO4(aq) = BaSO4 + 2 H2O
K2S + K2SO3 + H2O = KOH + S =>
2 K2S + K2SO3 + 3 H2O = 6 KOH + 3 S
Ca(NO3)2 + KI = CaI2 + KNO3 =>
Ca(NO3)2 + 2 KI = CaI2 + 2 KNO3
MgCl2 + Ca(OH)2 = MgCa + ClOH =>
MgCl2 + Ca(OH)2 = MgCa + 2 ClOH
Sb + O = O6Sb4 =>
4 Sb + 6 O = O6Sb4
C12H17NO6 + NaOH = C8H11N + Na2C4H4O6 + H2O =>
C12H17NO6 + 2 NaOH = C8H11N + Na2C4H4O6 + 2 H2O
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
U(SO4)2 + KMnO4 + H2O = H2SO4 + MnSO4 + K2SO4 + UO2SO4 =>
5 U(SO4)2 + 2 KMnO4 + 2 H2O = 2 H2SO4 + 2 MnSO4 + K2SO4 + 5 UO2SO4
Na2O3S2 + NaMnO4 + H{+} = Na{+2} + Mn{+2} + H2O + S4O6{-2} =>
4 Na2O3S2 + 3 NaMnO4 + 24 H{+} = 11 Na{+2} + 3 Mn{+2} + 12 H2O + 2 S4O6{-2}
S2O3{2-} + Br2 + H2O = SO4{2-} + Br{-} + H3O{+} =>
S2O3{2-} + 4 Br2 + 15 H2O = 2 SO4{2-} + 8 Br{-} + 10 H3O{+}
Mg + H4O = Mg(OH)2 + H2 =>
Mg + 2 H4O = Mg(OH)2 + 3 H2
I2 + KF = KI + F2 =>
I2 + 2 KF = 2 KI + F2
Pb2NO3 + KS = Pb2S + K2(NO3)2 =>
2 Pb2NO3 + 2 KS = 2 Pb2S + K2(NO3)2
Fe(SO3)2 + HCl = FeCl2 + HSO3 =>
Fe(SO3)2 + 2 HCl = FeCl2 + 2 HSO3
Pb(NO3)2 + Zn = Zn(NO3)2(aq) + Pb(s) =>
Pb(NO3)2 + Zn = Zn(NO3)2(aq) + Pb(s)
Zn(NO2)2 + H3PO4 = Zn3(PO4)2 + HOH + N2O3 =>
3 Zn(NO2)2 + 2 H3PO4 = Zn3(PO4)2 + 3 HOH + 3 N2O3
HgS + H2O2 = H2O + HgSO3 =>
HgS + 3 H2O2 = 3 H2O + HgSO3
BeO + SO2 = BeSO2 + O =>
BeO + SO2 = BeSO2 + O
Pb(s) + AgNO3(aq) = Pb(NO3)2 + Ag(aq) =>
Pb(s) + 2 AgNO3(aq) = Pb(NO3)2 + 2 Ag(aq)
Cr2O3 + HNO3 = Cr(NO3)3 + H2O =>
Cr2O3 + 6 HNO3 = 2 Cr(NO3)3 + 3 H2O
Pb + K2CrO4 + NaOH = PbCrO4 + KOH + Na =>
Pb + K2CrO4 + 2 NaOH = PbCrO4 + 2 KOH + 2 Na
NO2 + C6H6O = C6H5O3N + H2 =>
2 NO2 + 2 C6H6O = 2 C6H5O3N + H2
MnBr2 + H2SO4 = MnSO4 + HBr =>
MnBr2 + H2SO4 = MnSO4 + 2 HBr
NI + H2SO4 = NI(SO4)4 + H2 =>
NI + 4 H2SO4 = NI(SO4)4 + 4 H2
NaBr(aq) + H2SO4(aq) = Br2(l) + SO2(g) + H2O(l) + NaSO4(aq) =>
2 NaBr(aq) + 4 H2SO4(aq) = Br2(l) + 2 SO2(g) + 4 H2O(l) + 2 NaSO4(aq)
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
PB(NO3)2 + HCl = PBCl2(s) + HNO3(aq) =>
PB(NO3)2 + 2 HCl = PBCl2(s) + 2 HNO3(aq)
FeS + HCl = FeSCl + H2 =>
2 FeS + 2 HCl = 2 FeSCl + H2
K + HNO3 = H2 + K(NO3) =>
2 K + 2 HNO3 = H2 + 2 K(NO3)
HOC(CH2)4COH + Br2 + H2O = HOOC(CH2)4COOH + HBr =>
HOC(CH2)4COH + 2 Br2 + 2 H2O = HOOC(CH2)4COOH + 4 HBr
Fe{3+}2O3 + Zn = Fe + Zn{2+}O =>
2 Fe{3+}2O3 + 3 Zn = 2 Fe + 3 Zn{2+}O
Sn + HCl + H2O = (Sn(H2O)4)Cl2 + H2 =>
Sn + 2 HCl + 4 H2O = (Sn(H2O)4)Cl2 + H2
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
FeO + LiBr = FeBr2 + Li2O =>
FeO + 2 LiBr = FeBr2 + Li2O
BaSO4 + K2Cr2O7 + H2O = BaCrO4 + K2SO4 + H2CrO4 =>
BaSO4 + K2Cr2O7 + H2O = BaCrO4 + K2SO4 + H2CrO4
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Au2S3 + Hg = HgS + Au =>
Au2S3 + 3 Hg = 3 HgS + 2 Au
Fe(NO3)3 + NaOH = Fe(OH)3 + NaNO3 =>
Fe(NO3)3 + 3 NaOH = Fe(OH)3 + 3 NaNO3
S2O3 + H2O = SO3 + H =>
S2O3 + 3 H2O = 2 SO3 + 6 H
Si + Na = Si3Na =>
3 Si + Na = Si3Na
HNO3 + Mg = MgNO3 + H2 =>
2 HNO3 + 2 Mg = 2 MgNO3 + H2
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