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2 Fe2O3 + 3 C = 4 Fe + 3 CO2
Na2SO4 + LiNO3 = NaNO3 + Li2SO4 =>
Na2SO4 + 2 LiNO3 = 2 NaNO3 + Li2SO4
Cu(s) + Br2(l) = CuBr2(s) =>
Cu(s) + Br2(l) = CuBr2(s)
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
(CH3COO)2Pb + Cu = Pb + CH3COOCu =>
(CH3COO)2Pb + 2 Cu = Pb + 2 CH3COOCu
C3H8 + O2 = CH4COOH + H2O =>
8 C3H8 + 13 O2 = 12 CH4COOH + 2 H2O
Mg + HCI = Mg2CI + H1 =>
2 Mg + HCI = Mg2CI + H1
Au + H2O = AuO + H2 =>
Au + H2O = AuO + H2
KClO3 + H2SO4 = KClO4 + ClO2 + H2O + KHSO4 =>
3 KClO3 + 2 H2SO4 = KClO4 + 2 ClO2 + H2O + 2 KHSO4
HClO4 + HClO = HClO2 =>
HClO4 + 2 HClO = 3 HClO2
Zn(OH)2 + HNO3 = Zn(NO3)2 + H2O =>
Zn(OH)2 + 2 HNO3 = Zn(NO3)2 + 2 H2O
C17H35COONa + H2SO4 = C17H35COOH + Na2SO4 =>
2 C17H35COONa + H2SO4 = 2 C17H35COOH + Na2SO4
AsO4{3-} + S{2-} + H{+} = AsO3{3-} + S + H2O =>
AsO4{3-} + S{2-} + 2 H{+} = AsO3{3-} + S + H2O
K + Fe(SO4) = K(SO4) + Fe =>
K + Fe(SO4) = K(SO4) + Fe
Ag2 + CuSO4 = Ag2SO4 + Cu =>
Ag2 + CuSO4 = Ag2SO4 + Cu
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
MnO2 + H2SO4 + NaCl = Cl2 + MnSO4 + H2O + NaSO4 =>
2 MnO2 + 4 H2SO4 + 2 NaCl = Cl2 + 2 MnSO4 + 4 H2O + 2 NaSO4
Al(OH)3 + C(s) = H2O + Al + CO2 =>
4 Al(OH)3 + 3 C(s) = 6 H2O + 4 Al + 3 CO2
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
PbO(s) + C(s) = Pb(l) + CO(g) =>
PbO(s) + C(s) = Pb(l) + CO(g)
C6H6SO3 + O2 = CO2 + H2O + SO3 =>
2 C6H6SO3 + 15 O2 = 12 CO2 + 6 H2O + 2 SO3
As2S3(g) + O2(g) = As2O3(g) + SO2(g) =>
2 As2S3(g) + 9 O2(g) = 2 As2O3(g) + 6 SO2(g)
NH3Cl + Na + HCl = NaCl + NH4Cl =>
NH3Cl + Na + HCl = NaCl + NH4Cl
FeSO4 + K3(OH)3 = Fe(OH)3 + K3SO4 =>
FeSO4 + K3(OH)3 = Fe(OH)3 + K3SO4
MnO4{-} + CH3CH2OH + H{+} = Mn{2+} + CH3COOH + H2O =>
4 MnO4{-} + 5 CH3CH2OH + 12 H{+} = 4 Mn{2+} + 5 CH3COOH + 11 H2O
HgI2 + KI = K2HgI4 =>
HgI2 + 2 KI = K2HgI4
Fe2(SO4)3(aq) + Ca(OH)2 = Fe(OH)3(s) + CaSO4(s) =>
Fe2(SO4)3(aq) + 3 Ca(OH)2 = 2 Fe(OH)3(s) + 3 CaSO4(s)
CO(NH2)2(s) + H2O(g) = NH3 + CO2 =>
CO(NH2)2(s) + H2O(g) = 2 NH3 + CO2
S + C + KNO3 = N2 + CO2 + K2S =>
S + 3 C + 2 KNO3 = N2 + 3 CO2 + K2S
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
CH3NHCH2OH + O2 = CO2 + H2O + N2 =>
4 CH3NHCH2OH + 13 O2 = 8 CO2 + 14 H2O + 2 N2
Mg + HNO3 = Mg(NO3)2 + N2 + H2O =>
5 Mg + 12 HNO3 = 5 Mg(NO3)2 + N2 + 6 H2O
ZnS + O3 = ZnO + SO2 =>
ZnS + O3 = ZnO + SO2
Mg(NO3)2 + H2SO4 = MgSO4 + (NO3)2H2 =>
Mg(NO3)2 + H2SO4 = MgSO4 + (NO3)2H2
Ca(OH)2 + H(PO4) = Ca(PO4)2 + H2O =>
Ca(OH)2 + 2 H(PO4) = Ca(PO4)2 + 2 H2O
Na2CrO4 = Na2Cr2O7 + Na2O =>
2 Na2CrO4 = Na2Cr2O7 + Na2O
FeCl3 + H2O = Fe(OH)3 + HCl =>
FeCl3 + 3 H2O = Fe(OH)3 + 3 HCl
S + F2 = SF6 =>
S + 3 F2 = SF6
Fe(NO3)3 + AgCl = FeCl3 + Ag(NO3) =>
Fe(NO3)3 + 3 AgCl = FeCl3 + 3 Ag(NO3)
Ca(s)F2(g) = CaF2 =>
Ca(s)F2(g) = CaF2
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
Mg(HO)2 = MgO + H2O =>
Mg(HO)2 = MgO + H2O
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
AgNO3 + LiBr = LiNO3 + AgBr =>
AgNO3 + LiBr = LiNO3 + AgBr
C2H6 + Cl2 = C2H5Cl3 + HCl =>
C2H6 + 2 Cl2 = C2H5Cl3 + HCl
BaO + C = BaC + CO2 =>
2 BaO + 3 C = 2 BaC + CO2
BaCO3 + Fe2O3 = BaFe2O4 + CO2 =>
BaCO3 + Fe2O3 = BaFe2O4 + CO2
Zn(NO3)2 + NaOH = Zn(OH)2 + NaNO3 =>
Zn(NO3)2 + 2 NaOH = Zn(OH)2 + 2 NaNO3
[Cr(NH3)6]Cl2 + NH4Cl = [Cr(NH3)6]Cl3 + NH4 =>
[Cr(NH3)6]Cl2 + NH4Cl = [Cr(NH3)6]Cl3 + NH4
K2S(aq) + BaCl2(aq) = K2Cl2 + BaS =>
K2S(aq) + BaCl2(aq) = K2Cl2 + BaS
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