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4 Zn + 2 FeS2 = 4 ZnS + Fe2
PbO + S = PbS + O2 =>
2 PbO + 2 S = 2 PbS + O2
HgS + HCl + HNO3 = H2HgCl4 + NO + S + H2O =>
3 HgS + 12 HCl + 2 HNO3 = 3 H2HgCl4 + 2 NO + 3 S + 4 H2O
Zn + CuSO4 = ZnSO4 + Cu =>
Zn + CuSO4 = ZnSO4 + Cu
C5H10 + O2 = CO2 + H2O =>
2 C5H10 + 15 O2 = 10 CO2 + 10 H2O
NH3 + CO2 = CN2OH4 + H2O =>
2 NH3 + CO2 = CN2OH4 + H2O
C2H5OH = C4H10O + H2O =>
2 C2H5OH = C4H10O + H2O
Zn3P2 + NaOH = Zn(OH)2 + Na3P =>
Zn3P2 + 6 NaOH = 3 Zn(OH)2 + 2 Na3P
Li2Br2 = LiBr =>
Li2Br2 = 2 LiBr
KI + FeBr2 = KBr + FeI2 =>
2 KI + FeBr2 = 2 KBr + FeI2
HNO3(aq) + Sr(OH)2(aq) = Sr(NO3)2(aq) + H2O(l) =>
2 HNO3(aq) + Sr(OH)2(aq) = Sr(NO3)2(aq) + 2 H2O(l)
H2C2O4(aq) + KMnO4(s) + H2SO4(aq) = CO2(g) + MnSO4(s) + H2O(l) + K2SO4(s) =>
5 H2C2O4(aq) + 2 KMnO4(s) + 3 H2SO4(aq) = 10 CO2(g) + 2 MnSO4(s) + 8 H2O(l) + K2SO4(s)
K2Cr2O7 + NaOH + KI = Cr(OH)3 + KOH + I2 + Na2O =>
K2Cr2O7 + 14 NaOH + 6 KI = 2 Cr(OH)3 + 8 KOH + 3 I2 + 7 Na2O
CH3N5 + O2 = N2 + CO2 + H2O =>
4 CH3N5 + 7 O2 = 10 N2 + 4 CO2 + 6 H2O
H2 + S + O2 = H2SO4 =>
H2 + S + 2 O2 = H2SO4
HBr + Mg = MgBr2 + H2 =>
2 HBr + Mg = MgBr2 + H2
H2SO4 + HI = H2S2 + I2 + H2O =>
2 H2SO4 + 14 HI = H2S2 + 7 I2 + 8 H2O
Mg + Sn{8+} = Mg{2+} + Sn =>
4 Mg + Sn{8+} = 4 Mg{2+} + Sn
BaCl2 + H2S4 = BaS4 + HCl =>
BaCl2 + H2S4 = BaS4 + 2 HCl
Ca10(PO4)6(OH)2 = Ca3(PO4)2 + CaO + H2O =>
Ca10(PO4)6(OH)2 = 3 Ca3(PO4)2 + CaO + H2O
PbO4 + HCl = PbCl2 + Cl2 + H2O =>
PbO4 + 8 HCl = PbCl2 + 3 Cl2 + 4 H2O
K2[ON(SO3)2] + (NH4)2SO4 = K2SO4 + HON(SO3)2 + SO2 + NH3 =>
10 K2[ON(SO3)2] + 7(NH4)2SO4 = 10 K2SO4 + 8 HON(SO3)2 + SO2 + 16 NH3
Na2O2(s) + H2O(g) + CO2(g) = NaHCO3(s) + O2 =>
2 Na2O2(s) + 2 H2O(g) + 4 CO2(g) = 4 NaHCO3(s) + O2
Sr(OH)2*8H2O + HCl = SrCl2 + H2O =>
Sr(OH)2*8H2O + 2 HCl = SrCl2 + 10 H2O
PbS8 + O = PbO + SO2 =>
PbS8 + 17 O = PbO + 8 SO2
KMnO4 + H2SO4 + Na2S = K2SO4 + Na2SO4 + MnO2 + H2O =>
8 KMnO4 + 4 H2SO4 + 3 Na2S = 4 K2SO4 + 3 Na2SO4 + 8 MnO2 + 4 H2O
FeSO4 + K2CrO7 + H2SO4 = Cr2(SO4)3 + Fe2(SO4)3 + K2SO4 + H2O =>
18 FeSO4 + 2 K2CrO7 + 14 H2SO4 = Cr2(SO4)3 + 9 Fe2(SO4)3 + 2 K2SO4 + 14 H2O
Na2CrO4 + CrSO4 + H2O + NaOH = Cr(OH)3 + Na2SO4 =>
Na2CrO4 + 3 CrSO4 + 4 H2O + 4 NaOH = 4 Cr(OH)3 + 3 Na2SO4
FeSO4 + HCl = FeCl2 + H2O + SO3 =>
FeSO4 + 2 HCl = FeCl2 + H2O + SO3
KI + K2S2O8 = I2 + K2SO4 =>
2 KI + K2S2O8 = I2 + 2 K2SO4
BeO + C + Cl = BeCl2 + CO =>
BeO + C + 2 Cl = BeCl2 + CO
Eu2O3 + La = Eu + La2O3 =>
Eu2O3 + 2 La = 2 Eu + La2O3
ZnO + Na2S = ZnS + Na2O =>
ZnO + Na2S = ZnS + Na2O
HClO2 + Fe(OH)2 = Fe(ClO2)2 + H2O =>
2 HClO2 + Fe(OH)2 = Fe(ClO2)2 + 2 H2O
CS + CI = CCI + SCI =>
CS + 2 CI = CCI + SCI
KMnO4 + KOH + KNO2 = K2MnO4 + KNO3 + H2O =>
2 KMnO4 + 2 KOH + KNO2 = 2 K2MnO4 + KNO3 + H2O
Ca = Ca1 =>
Ca = Ca1
Cr2O7{2-} + CH3OH + H3O{+} = Cr{3+} + CH2O + H2O =>
Cr2O7{2-} + 3 CH3OH + 8 H3O{+} = 2 Cr{3+} + 3 CH2O + 15 H2O
Ba3(NO)2 + Al(OH)3 = Ba(OH)2 + AlNO =>
Ba3(NO)2 + 2 Al(OH)3 = 3 Ba(OH)2 + 2 AlNO
Na + Cl + H2O = NaOH + HCl =>
Na + Cl + H2O = NaOH + HCl
Cr2O3 + H2O = Cr2H2O4 =>
Cr2O3 + H2O = Cr2H2O4
C6H12O5(s) + O2(g) = CO2(g) + H2O(l) =>
2 C6H12O5(s) + 13 O2(g) = 12 CO2(g) + 12 H2O(l)
C6H12O6 + Ag(NH3)2{+} + OH{-} = Ag + C6H11O7{-} + NH3 + H2O =>
C6H12O6 + 2 Ag(NH3)2{+} + 3 OH{-} = 2 Ag + C6H11O7{-} + 4 NH3 + 2 H2O
BiH3 + O2 = Bi2O3 + H2O =>
2 BiH3 + 3 O2 = Bi2O3 + 3 H2O
Co2 + S = CoS =>
Co2 + 2 S = 2 CoS
K2C2O4*H2O + KMnO4 + H2SO4 = CO2 + H2O + K2SO4 + MnSO4 =>
5 K2C2O4*H2O + 2 KMnO4 + 8 H2SO4 = 10 CO2 + 13 H2O + 6 K2SO4 + 2 MnSO4
H2 + Zn = ZnH2 =>
H2 + Zn = ZnH2
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
Cl2 + NaMnO4 = NaCl + MnO4 =>
Cl2 + 2 NaMnO4 = 2 NaCl + 2 MnO4
NaOH + CH3CHO = CH3COOH + Na2 + H2O =>
2 NaOH + CH3CHO = CH3COOH + Na2 + H2O
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