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3 Fe2O3 + H2 = 2 Fe2O3(FeO) + H2O
Zn + Cl = ZnCl3 =>
Zn + 3 Cl = ZnCl3
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
H3CrO3 = H2 + CrO3 =>
2 H3CrO3 = 3 H2 + 2 CrO3
KOH + SnO2 + H2O = K2[Sn(OH)6] =>
2 KOH + SnO2 + 2 H2O = K2[Sn(OH)6]
HCl(g) + O2(g) = H2O(g) + Cl2(g) =>
4 HCl(g) + O2(g) = 2 H2O(g) + 2 Cl2(g)
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
AgCl = Ag + Cl =>
AgCl = Ag + Cl
PBCl2 + Li2SO4 = LiCl + PBSO4 =>
PBCl2 + Li2SO4 = 2 LiCl + PBSO4
Mg(NO3)2 + KOH = Mg(OH)2 + KNO3 =>
Mg(NO3)2 + 2 KOH = Mg(OH)2 + 2 KNO3
N2O5 + Ca(OH)2 = Ca(NO3)2 + H2O =>
N2O5 + Ca(OH)2 = Ca(NO3)2 + H2O
HSO4 + AlO = AlSO4 + HO =>
HSO4 + AlO = AlSO4 + HO
AlCl3 + Nh4OH = Al(OH)3 + Nh4Cl =>
AlCl3 + 3 Nh4OH = Al(OH)3 + 3 Nh4Cl
[Co(CN)6]{4-} + O2 + H2O = [Co(CN)6]{3-} + OH{-} =>
4[Co(CN)6]{4-} + O2 + 2 H2O = 4[Co(CN)6]{3-} + 4 OH{-}
H2SO3 + BaCl2 = Ba(SO3) + HCl =>
H2SO3 + BaCl2 = Ba(SO3) + 2 HCl
K2Cr2O7 + Na2S + HCl = KCl + CrCl3 + Na2SO4 + H2O =>
4 K2Cr2O7 + 3 Na2S + 32 HCl = 8 KCl + 8 CrCl3 + 3 Na2SO4 + 16 H2O
Pb(NO3)2 + RbI = PbI2 + RbNO3 =>
Pb(NO3)2 + 2 RbI = PbI2 + 2 RbNO3
KMnO4 + Al(OH)3 = Al(MnO4)3 + KOH =>
3 KMnO4 + Al(OH)3 = Al(MnO4)3 + 3 KOH
K2O + H2SO3 = K2SO3 + H2O =>
K2O + H2SO3 = K2SO3 + H2O
FeBr3 + H2SO4 = Fe2(SO4)3 + HBr =>
2 FeBr3 + 3 H2SO4 = Fe2(SO4)3 + 6 HBr
Mg(OH)2 = MgO + H2O =>
Mg(OH)2 = MgO + H2O
Si + NaOH = SiO2 + Na + H2 =>
Si + 2 NaOH = SiO2 + 2 Na + H2
C6H6 + CH3Br = C7H8 + HBr =>
C6H6 + CH3Br = C7H8 + HBr
(NH4)2CO3(s) = NH3 + H2O + CO2(g) =>
(NH4)2CO3(s) = 2 NH3 + H2O + CO2(g)
C = C13 =>
13 C = C13
Pb + CuNo32 = Cu + Pb(No3) =>
32 Pb + 3 CuNo32 = 3 Cu + 32 Pb(No3)
Mn + Fe2O3 = Fe + MnO2 =>
3 Mn + 2 Fe2O3 = 4 Fe + 3 MnO2
C3H6Cl2 = C3H5ClHCl =>
C3H6Cl2 = C3H5ClHCl
C6H12O6 + Ag2O(NH3) = Ag + C6H8O7 + NH3 + H2O =>
C6H12O6 + 3 Ag2O(NH3) = 6 Ag + C6H8O7 + 3 NH3 + 2 H2O
FeCl2 + K2S = FeS + KCl =>
FeCl2 + K2S = FeS + 2 KCl
SiO2(s) = Si(s) + O2(g) =>
SiO2(s) = Si(s) + O2(g)
BaSO3 + HBr = BaBr + HSO3 =>
BaSO3 + HBr = BaBr + HSO3
H2SO4 + (KCl) = K2SO4 + (HCl) =>
H2SO4 + 2(KCl) = K2SO4 + 2(HCl)
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
Mg(OH)2 = H2O + MgO =>
Mg(OH)2 = H2O + MgO
C5H10H5 + O2 = CO2 + H2O =>
4 C5H10H5 + 35 O2 = 20 CO2 + 30 H2O
S2O3{2-} + H{+} = S + HSO4{-} + H2O =>
3 S2O3{2-} + 4 H{+} = 4 S + 2 HSO4{-} + H2O
LiF + H2O = LiOH + HF =>
LiF + H2O = LiOH + HF
Ba(NO3)2 + KI = K(NO3)2 + BaI =>
Ba(NO3)2 + KI = K(NO3)2 + BaI
Ba(OH)2 + Na2SO4 = Ba(SO4) + Na(OH) =>
Ba(OH)2 + Na2SO4 = Ba(SO4) + 2 Na(OH)
K2Cr2O7 + H2S + HCl = CrCl3S + S + KCl + H2O =>
K2Cr2O7 + 3 H2S + 8 HCl = 2 CrCl3S + S + 2 KCl + 7 H2O
(NH4)2CO3 + HNO3 = NH3NO3 + CO2 + H2O =>
7(NH4)2CO3 + 18 HNO3 = 16 NH3NO3 + 7 CO2 + 13 H2O
SnS2 = Sn + S =>
SnS2 = Sn + 2 S
C6H12O + H2CrO4 + H2SO4 = C6H10O + Cr2(SO4)3 + H2O =>
3 C6H12O + 2 H2CrO4 + 3 H2SO4 = 3 C6H10O + Cr2(SO4)3 + 8 H2O
Cr2(SO4)3 + NH3*H2O = Cr(OH)3 + (NH4)2SO4 =>
Cr2(SO4)3 + 6 NH3*H2O = 2 Cr(OH)3 + 3(NH4)2SO4
Sn + Ag = SnAg =>
Sn + Ag = SnAg
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
Na2S + SO2 = Na2SO4 + S2 =>
Na2S + 2 SO2 = Na2SO4 + S2
Hydrogen + nitrogen = ammonia =>
3 H2 + N2 = 2 NH3
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