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S + 2 HNO3 = H2SO4 + 2 NO
C4H10 + O2 = CO2 + H2 =>
C4H10 + 4 O2 = 4 CO2 + 5 H2
Al2O3 + Fe = Fe3O4 + Al =>
4 Al2O3 + 9 Fe = 3 Fe3O4 + 8 Al
MnO4{-} + S2{-} + H2O = MnO2 + S8 + OH{-} =>
4 MnO4{-} + 12 S2{-} + 8 H2O = 4 MnO2 + 3 S8 + 16 OH{-}
Rb + O2 = RbO2 =>
Rb + O2 = RbO2
Na + BaO = NaO + Ba =>
Na + BaO = NaO + Ba
Fe + C + N2 = Fe(CN)2 =>
Fe + 2 C + N2 = Fe(CN)2
NaCl + H2SO4 + MnO2 = Na2SO4 + MnSO4 + H2O + Cl2 =>
2 NaCl + 2 H2SO4 + MnO2 = Na2SO4 + MnSO4 + 2 H2O + Cl2
Ca(H2PO4)2 + NaOH = CaHPO4 + Na3PO4 + H2O =>
Ca(H2PO4)2 + 3 NaOH = CaHPO4 + Na3PO4 + 3 H2O
Ba(NO3)2 + I = BaI2 + NO3 =>
Ba(NO3)2 + 2 I = BaI2 + 2 NO3
H2SO4(aq) + Zn(OH)2(s) = ZnSO4(aq) + H2O(l) =>
H2SO4(aq) + Zn(OH)2(s) = ZnSO4(aq) + 2 H2O(l)
CO2 + H2O + SO2 = C2H6S + O2 =>
4 CO2 + 6 H2O + 2 SO2 = 2 C2H6S + 9 O2
FeS2 + HCl + HNO3 = FeCl3 + NO + H2SO4 + H2O =>
FeS2 + 3 HCl + 5 HNO3 = FeCl3 + 5 NO + 2 H2SO4 + 2 H2O
Ca(HCO3)2 + NH3 = CaCO3 + (NH4)2CO3 =>
Ca(HCO3)2 + 2 NH3 = CaCO3 + (NH4)2CO3
H(g) + O(g) = H2O =>
2 H(g) + O(g) = H2O
Cl + F2 = FCl3 =>
6 Cl + F2 = 2 FCl3
CuCl2 + Na2S + H2O = Cu(OH)2 + H2S + NaCl =>
CuCl2 + Na2S + 2 H2O = Cu(OH)2 + H2S + 2 NaCl
Li2CO3(aq) + HCl(aq) = LiCl(s) + H2O(l) + CO2(g) =>
Li2CO3(aq) + 2 HCl(aq) = 2 LiCl(s) + H2O(l) + CO2(g)
AgNO3 + Na2C2O4 = Ag2C2O4 + NaNO3 =>
2 AgNO3 + Na2C2O4 = Ag2C2O4 + 2 NaNO3
Fe + Zn3[Fe(CN)6]2 = Fe3[Fe(CN)6]2 + Zn =>
3 Fe + Zn3[Fe(CN)6]2 = Fe3[Fe(CN)6]2 + 3 Zn
KMnO4(aq) + KCl(aq) + H2SO4(aq) = MnSO4(aq) + K2SO4(aq) + Cl2(g) + H2O =>
2 KMnO4(aq) + 10 KCl(aq) + 8 H2SO4(aq) = 2 MnSO4(aq) + 6 K2SO4(aq) + 5 Cl2(g) + 8 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
NH3 + H2O = NH4OH =>
NH3 + H2O = NH4OH
Sb + O2 = Sb4O6 =>
4 Sb + 3 O2 = Sb4O6
CaCl2(aq) + HCl(aq) = HCl2(aq) + CaCl =>
CaCl2(aq) + HCl(aq) = HCl2(aq) + CaCl
Cu + Fe(OH)3 = Fe + Cu(OH)2 =>
3 Cu + 2 Fe(OH)3 = 2 Fe + 3 Cu(OH)2
SnBr2 + Li2S = SnS + LiBr =>
SnBr2 + Li2S = SnS + 2 LiBr
CH3Cl + H2 = CH4 + Cl2 =>
2 CH3Cl + H2 = 2 CH4 + Cl2
C3H6O + Ag2O = CH3COOH + Ag =>
2 C3H6O + 4 Ag2O = 3 CH3COOH + 8 Ag
CH3C(O)CH3 + CH3CH2OH = (CH3)2C(OCH2CH3)2 + H2O =>
CH3C(O)CH3 + 2 CH3CH2OH = (CH3)2C(OCH2CH3)2 + H2O
CO2 + H2O + N2 = C9H28O2N + O2 =>
18 CO2 + 28 H2O + N2 = 2 C9H28O2N + 30 O2
Cl2 + C + H2O = CO2 + HCl =>
2 Cl2 + C + 2 H2O = CO2 + 4 HCl
N2O4 + Ca(OH)2 = Ca(NO3)2 + NO + H2O =>
3 N2O4 + 2 Ca(OH)2 = 2 Ca(NO3)2 + 2 NO + 2 H2O
CrCl3 + MnO2 + H2O = MnCl2 + H2CrO4 =>
2 CrCl3 + 3 MnO2 + 2 H2O = 3 MnCl2 + 2 H2CrO4
MgCl2 + H2O = Mg(OH)2 + HCl =>
MgCl2 + 2 H2O = Mg(OH)2 + 2 HCl
Ca(HCO3)2 + Na2CO3 = CaCO3 + NaHCO3 =>
Ca(HCO3)2 + Na2CO3 = CaCO3 + 2 NaHCO3
CN + MnO4 = CNO + MnO2 =>
2 CN + MnO4 = 2 CNO + MnO2
CaCO3(s) + H2O(l) = Ca(OH)2 + CO2 =>
CaCO3(s) + H2O(l) = Ca(OH)2 + CO2
NH3 + Cu(NO3)2 = Cu(NH3)4 + NO3 =>
4 NH3 + Cu(NO3)2 = Cu(NH3)4 + 2 NO3
NH3 + OH = N2 + H2O =>
2 NH3 + 6 OH = N2 + 6 H2O
Ca(HCO3)2 + Al2O3 = Al(HCO3)3 + CaO =>
3 Ca(HCO3)2 + Al2O3 = 2 Al(HCO3)3 + 3 CaO
Al = Al3{+} + e =>
3 Al = Al3{+} + e
zinc + sulfur = zincsulfide =>
Zn + S = ZnS
PbCl2 + Na2S = PbS + NaCl =>
PbCl2 + Na2S = PbS + 2 NaCl
Be(s) + Cl2(g) = BeCl2 =>
Be(s) + Cl2(g) = BeCl2
HCOOH + Al2O3 = Al(HCOO)3 + H2O =>
6 HCOOH + Al2O3 = 2 Al(HCOO)3 + 3 H2O
Cr + S8 = Cr2S3 =>
16 Cr + 3 S8 = 8 Cr2S3
Zn(CrO4) + Ca(OH)2 = Ca(CrO4) + Zn(OH)2 =>
Zn(CrO4) + Ca(OH)2 = Ca(CrO4) + Zn(OH)2
Fe(OH)3 + CuCl2 = Cu(OH)2 + FeCl3 =>
2 Fe(OH)3 + 3 CuCl2 = 3 Cu(OH)2 + 2 FeCl3
MgO + H2S = MgS + H2O =>
MgO + H2S = MgS + H2O
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