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2 Fe(OH)3 = Fe2O3 + 3 H2O
H2N{-}(R){-}NH2 + HCl = NH3{-}(R){-}NH3 + Cl =>
H2N{-}(R){-}NH2 + HCl = NH3{-}(R){-}NH3 + Cl
Al2O3 + Na2O = NaAlO2 =>
Al2O3 + Na2O = 2 NaAlO2
NH4Cr2 + O2 = Cr2O3 + N2 + H2O =>
2 NH4Cr2 + 5 O2 = 2 Cr2O3 + N2 + 4 H2O
Pb(NO3)2 + AgNO3 = PbAg + NO3 =>
Pb(NO3)2 + AgNO3 = PbAg + 3 NO3
MnO2 + HNO2 = Mn + NO3 + H2O =>
3 MnO2 + 4 HNO2 = 3 Mn + 4 NO3 + 2 H2O
Si + NaOH + H2O = NaSiO3 + H2 =>
2 Si + 2 NaOH + 4 H2O = 2 NaSiO3 + 5 H2
[Zn] + [Cu(SO)] = [Cu(Zn)] + (SO) =>
[Zn] + [Cu(SO)] = [Cu(Zn)] + (SO)
CrO3 + CO2 = Cr(CO3)3 =>
CrO3 + 3 CO2 = Cr(CO3)3
C10H10Fe + C2H3OCl = C14H14FeO2 + HCl =>
C10H10Fe + 2 C2H3OCl = C14H14FeO2 + 2 HCl
Mn2O3(s) = Mn(s) + O2(g) =>
2 Mn2O3(s) = 4 Mn(s) + 3 O2(g)
AgNO2 + NaF = AgF + NaNO2 =>
AgNO2 + NaF = AgF + NaNO2
Cr2O7{-}2 + CH3CH2OH + H{+} = Cr3{+} + CH3COOH + H2O =>
12 Cr2O7{-}2 + 37 CH3CH2OH + 20 H{+} = 8 Cr3{+} + 37 CH3COOH + 47 H2O
SiO2 + NH3 = Si + H2O + N2 =>
3 SiO2 + 4 NH3 = 3 Si + 6 H2O + 2 N2
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
FeS2 + Li = Fe + Li2S =>
FeS2 + 4 Li = Fe + 2 Li2S
(NH4)2Fe(SO4)2 + K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + (NH4)2SO4 + K2SO4 =>
3(NH4)2Fe(SO4)2 + 2 K3[Fe(CN)6] = Fe3[Fe(CN)6]2 + 3(NH4)2SO4 + 3 K2SO4
K(s) + I2(g) = KI =>
2 K(s) + I2(g) = 2 KI
P + O3 = P2O3 =>
2 P + O3 = P2O3
Fe2 + NaOH = Fe2NaOH =>
Fe2 + NaOH = Fe2NaOH
Aluminiumoxide + Nitricacid = Aluminiumnitrate + Water =>
Al2O3 + 6 HNO3 = 2 Al(NO3)3 + 3 H2O
FeO + P2O5 = Fe3(PO4)2 =>
3 FeO + P2O5 = Fe3(PO4)2
Ca(OH)2 + HCl = CaCl2 + H2O =>
Ca(OH)2 + 2 HCl = CaCl2 + 2 H2O
KMnO4 + Na2CO3 + H2O = K2CO3 + NaOH + MnO2 + O2 =>
4 KMnO4 + 2 Na2CO3 + 2 H2O = 2 K2CO3 + 4 NaOH + 4 MnO2 + 3 O2
Mg3[PO4]2 + H2SO4 = MgSO4 + H3PO4 =>
Mg3[PO4]2 + 3 H2SO4 = 3 MgSO4 + 2 H3PO4
SO3 + CrO = SO2 + CrO3 =>
2 SO3 + CrO = 2 SO2 + CrO3
KNO3 + H2 = KNO2 + H2O =>
KNO3 + H2 = KNO2 + H2O
CuCl2 + NaNO3 = Cu(NO3)2 + (NaCl) =>
CuCl2 + 2 NaNO3 = Cu(NO3)2 + 2(NaCl)
C2H4 + Br2 = C2H4Br2 =>
C2H4 + Br2 = C2H4Br2
Fe + Cu2S = Fe2S3 + Cu =>
2 Fe + 3 Cu2S = Fe2S3 + 6 Cu
K2O + HNO3 = KNO3 + H2O =>
K2O + 2 HNO3 = 2 KNO3 + H2O
NaOH(aq) + H2SO4(l) = Na2SO4(aq) + H2O(l) =>
2 NaOH(aq) + H2SO4(l) = Na2SO4(aq) + 2 H2O(l)
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
C15H14O3(s) + O2(g) = CO2(g) + H2O(l) =>
C15H14O3(s) + 17 O2(g) = 15 CO2(g) + 7 H2O(l)
(C5H8) + O2 = CO2 + H2O =>
(C5H8) + 7 O2 = 5 CO2 + 4 H2O
Fe + oxygen = iron(iii)oxide =>
4 Fe + 3 O2 = 2 Fe2O3
HClO4 + CH3COOK = KClO4 + CH3COOH =>
HClO4 + CH3COOK = KClO4 + CH3COOH
S{-2} + I2 = I{-} + S =>
S{-2} + I2 = 2 I{-} + S
PbNO3 + NaOH = PbOH + Na + NO3 =>
PbNO3 + NaOH = PbOH + Na + NO3
NaAlO2 + NaOH = Al(OH)3 + Na2O =>
NaAlO2 + 3 NaOH = Al(OH)3 + 2 Na2O
Ni + H2SO4 = NiSO4 + H2 =>
Ni + H2SO4 = NiSO4 + H2
C3H8 + SO3 = C3H7HSO3 =>
C3H8 + SO3 = C3H7HSO3
CuCl + H2 = Cu + HCl =>
2 CuCl + H2 = 2 Cu + 2 HCl
SnCl2 + Mg = MgCl + Sn =>
SnCl2 + 2 Mg = 2 MgCl + Sn
Fe(s) + HCl = H2 + FeCl =>
2 Fe(s) + 2 HCl = H2 + 2 FeCl
Ca(NO3)2 + AlCl3 = CaCl2 + Al(NO3)3 =>
3 Ca(NO3)2 + 2 AlCl3 = 3 CaCl2 + 2 Al(NO3)3
NaOH + Cu = NaOHCu =>
NaOH + Cu = NaOHCu
I2(aq) + HSO3{-}(aq) + H2O(l) = I{-}(aq) + SO4{2-}(aq) + H{+}(aq) =>
I2(aq) + HSO3{-}(aq) + H2O(l) = 2 I{-}(aq) + SO4{2-}(aq) + 3 H{+}(aq)
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Ca4 + O2 = CaO =>
Ca4 + 2 O2 = 4 CaO
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