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2 Zn + O2 = 2 ZnO
C10H14 + KMnO4 = K2CO3 + Mn2O3 + CO2 + H2O =>
4 C10H14 + 54 KMnO4 = 27 K2CO3 + 27 Mn2O3 + 13 CO2 + 28 H2O
K2O + HBr = HO + K2Br =>
K2O + HBr = HO + K2Br
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Cl2 + NaOH = NaCl + NaClO4 + H2O =>
4 Cl2 + 8 NaOH = 7 NaCl + NaClO4 + 4 H2O
Zn + OH{-} + H2O = [Zn(OH)4]{-2} + H2 =>
Zn + 2 OH{-} + 2 H2O = [Zn(OH)4]{-2} + H2
BClO3 = BClO + O2 =>
BClO3 = BClO + O2
Ba(OH)2 + H2SO4 = BaSO4 + H2O =>
Ba(OH)2 + H2SO4 = BaSO4 + 2 H2O
KMnO4 + NaOH + KI = Na2MnO4 + I2 + KOH =>
2 KMnO4 + 4 NaOH + 2 KI = 2 Na2MnO4 + I2 + 4 KOH
Ba[Cr(OH)4(H2O)2]2 + H2SO4 = BaSO4 + Cr2(SO4)3 + H2O =>
Ba[Cr(OH)4(H2O)2]2 + 4 H2SO4 = BaSO4 + Cr2(SO4)3 + 12 H2O
CO2 + PbO2 = Pb(CO3)2 =>
2 CO2 + PbO2 = Pb(CO3)2
MnO2 + K2CO3 + O2 = KMnO4 + CO2 =>
4 MnO2 + 2 K2CO3 + 3 O2 = 4 KMnO4 + 2 CO2
NO3 + Cu + H2SO4 = CuSO4 + HNO3 =>
2 NO3 + Cu + H2SO4 = CuSO4 + 2 HNO3
Ca(HCO3)2 = CaCO3 + H2O + CO2 =>
Ca(HCO3)2 = CaCO3 + H2O + CO2
H2SO4 + KNO2 + FeCl2 = N2 + FeCl3 + Fe2(SO4)3 + K2SO4 + H2O =>
4 H2SO4 + 2 KNO2 + 6 FeCl2 = N2 + 4 FeCl3 + Fe2(SO4)3 + K2SO4 + 4 H2O
P + HNO3 + H2O = H3PO4 + NO =>
3 P + 5 HNO3 + 2 H2O = 3 H3PO4 + 5 NO
NaNO2 + H2SO4 = NaNO3 + SO2 + H2O =>
NaNO2 + H2SO4 = NaNO3 + SO2 + H2O
FeO3(s) + CO(g) = Fe(l) + CO2(g) =>
FeO3(s) + 3 CO(g) = Fe(l) + 3 CO2(g)
MnO2 + K2CO3 + O2 = KMnO4 + CO2 =>
4 MnO2 + 2 K2CO3 + 3 O2 = 4 KMnO4 + 2 CO2
Zn + H2SO4(conc) = ZnSO4 + H2 =>
Zn + H2SO4(conc) = ZnSO4 + H2
CH3COOH + HCl = CH3COCl + H2O =>
CH3COOH + HCl = CH3COCl + H2O
C + H2 = C3H8 =>
3 C + 4 H2 = C3H8
Se + Cl + H2O = H2SeO4 + HCl =>
Se + 6 Cl + 4 H2O = H2SeO4 + 6 HCl
Pb(OH)2 + H2CO3 = PbCO3 + H2O =>
Pb(OH)2 + H2CO3 = PbCO3 + 2 H2O
Mg(OH)2 + HCl = MgCl2 + (H2)O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2(H2)O
MgSO4 + NaOH = Mg(OH)2 + Na2SO4 =>
MgSO4 + 2 NaOH = Mg(OH)2 + Na2SO4
F2 + S = SF6 =>
3 F2 + S = SF6
CH3CH2Br2 + Br2 = CH3CHBr2 + HBr =>
2 CH3CH2Br2 + Br2 = 2 CH3CHBr2 + 2 HBr
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
Cu(s) + K4[Fe(CN)6] = Cu[Fe(CN)6] + K2 =>
Cu(s) + K4[Fe(CN)6] = Cu[Fe(CN)6] + 2 K2
Sn + HF = SnF2 + H2 =>
Sn + 2 HF = SnF2 + H2
H4P2O7 + Mg(OH)4 = Mg(H3P2O7)4 + H2O =>
4 H4P2O7 + Mg(OH)4 = Mg(H3P2O7)4 + 4 H2O
MgSO4 + Na = Mg + Na2SO4 =>
MgSO4 + 2 Na = Mg + Na2SO4
P4 + O2 = P2O3 =>
P4 + 3 O2 = 2 P2O3
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Al + HCl3N = AlHCl3N =>
Al + HCl3N = AlHCl3N
PbS4 + O2 = Pb2S4 + SO2 =>
2 PbS4 + 4 O2 = Pb2S4 + 4 SO2
Al(NO3)3*9H2O + C6H8O7 = Al2O3 + CO2 + H2O + N2 =>
6 Al(NO3)3*9H2O + 5 C6H8O7 = 3 Al2O3 + 30 CO2 + 74 H2O + 9 N2
LiCl + Br2 = LiBr + Cl2 =>
2 LiCl + Br2 = 2 LiBr + Cl2
HBr + Ba(OH)2 = BaBr2 + H2O =>
2 HBr + Ba(OH)2 = BaBr2 + 2 H2O
K + Cr2O3 = K2O + Cr2O2 =>
2 K + Cr2O3 = K2O + Cr2O2
NaHBr = H2 + NaBr =>
2 NaHBr = H2 + 2 NaBr
Fe + H2O = Fe3O4 + H2 =>
3 Fe + 4 H2O = Fe3O4 + 4 H2
Na2C2O4 + AgC2H3O2 = NaC2H3O2 + Ag2C2O4 =>
Na2C2O4 + 2 AgC2H3O2 = 2 NaC2H3O2 + Ag2C2O4
Pb(NO3)2(aq) + KCl(s) = PbCl2(s) + KNO3(aq) =>
Pb(NO3)2(aq) + 2 KCl(s) = PbCl2(s) + 2 KNO3(aq)
BrO3{-} + F2 + OH{-} = BrO4{-} + F{-} + H2O =>
BrO3{-} + F2 + 2 OH{-} = BrO4{-} + 2 F{-} + H2O
N2 + H2O = NH3 + O2 =>
2 N2 + 6 H2O = 4 NH3 + 3 O2
CH4 + S = CS2 + H2S =>
CH4 + 4 S = CS2 + 2 H2S
Fe(II)S + HCl = Fe(II)Cl2 + H2S =>
Fe(II)S + 2 HCl = Fe(II)Cl2 + H2S
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