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2 Fe + 3 S = Fe2S3
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
Mg3N2 + H2O = Mg(OH)2 + NH3 =>
Mg3N2 + 6 H2O = 3 Mg(OH)2 + 2 NH3
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Al + MnO = Al2O3 + Mn =>
2 Al + 3 MnO = Al2O3 + 3 Mn
(NH4)2S2O8 + H2O = NH4HSO4 + H2O2 =>
(NH4)2S2O8 + 2 H2O = 2 NH4HSO4 + H2O2
HBr + NaOH = NaBr + H2O =>
HBr + NaOH = NaBr + H2O
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
V2O5 + CaS = CaO + V2S5 =>
V2O5 + 5 CaS = 5 CaO + V2S5
[Fe(H2O)6]{3+} + CO3{2-} = Fe(OH)3(H2O)3 + CO2 + H2O =>
2[Fe(H2O)6]{3+} + 3 CO3{2-} = 2 Fe(OH)3(H2O)3 + 3 CO2 + 3 H2O
CuCO3 + HNO3 = Cu(NO3)2 + H2O + CO2 =>
CuCO3 + 2 HNO3 = Cu(NO3)2 + H2O + CO2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
C + O2 = CO2 =>
C + O2 = CO2
NiSO4 + NaOH = Ni(OH)2 + Na2SO4 =>
NiSO4 + 2 NaOH = Ni(OH)2 + Na2SO4
CuO + Fe = Fe2O3 + Cu =>
3 CuO + 2 Fe = Fe2O3 + 3 Cu
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
OF2 + H2O = O2 + HF =>
OF2 + H2O = O2 + 2 HF
Cu2O + Cu2S = Cu + SO2 =>
2 Cu2O + Cu2S = 6 Cu + SO2
CO + H2 = CH3OH =>
CO + 2 H2 = CH3OH
Cu2O + Cu2S = Cu + SO2 =>
2 Cu2O + Cu2S = 6 Cu + SO2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
KMnO4 = K2O + MnO + O2 =>
4 KMnO4 = 2 K2O + 4 MnO + 5 O2
Na2SO4 + C = Na2S + CO =>
Na2SO4 + 4 C = Na2S + 4 CO
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
Na2SO4 + C = Na2S + CO =>
Na2SO4 + 4 C = Na2S + 4 CO
KMnO4 = K2O + MnO + O2 =>
4 KMnO4 = 2 K2O + 4 MnO + 5 O2
Ca(OH)2 + NH4Cl = NH3 + CaCl2 + H2O =>
Ca(OH)2 + 2 NH4Cl = 2 NH3 + CaCl2 + 2 H2O
SO2 + I2 + H2O = SO4{-2} + I{-} + H{+} =>
SO2 + I2 + 2 H2O = SO4{-2} + 2 I{-} + 4 H{+}
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Mg(HCO3)2 + HCl = MgCl2 + H2O + CO2 =>
Mg(HCO3)2 + 2 HCl = MgCl2 + 2 H2O + 2 CO2
Al + Cr2O3 = Al2O3 + Cr =>
2 Al + Cr2O3 = Al2O3 + 2 Cr
SnSO4 = SnSO3 + O2 =>
2 SnSO4 = 2 SnSO3 + O2
C7H14 + O2 = CO2 + H2O =>
2 C7H14 + 21 O2 = 14 CO2 + 14 H2O
Fe2O3 + H2 = Fe + H2O =>
Fe2O3 + 3 H2 = 2 Fe + 3 H2O
K3PO4 + HCl = KCl + H3PO4 =>
K3PO4 + 3 HCl = 3 KCl + H3PO4
Ca(OH)2 + H2SO4 = CaSO4 + HOH =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 HOH
CaCl2 + HNO3 = Ca(NO3)2 + HCl =>
CaCl2 + 2 HNO3 = Ca(NO3)2 + 2 HCl
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
CH3COOH + NaCl = CH3COONa + HCl =>
CH3COOH + NaCl = CH3COONa + HCl
AgBr + GaPO4 = Ag3PO4 + GaBr3 =>
3 AgBr + GaPO4 = Ag3PO4 + GaBr3
Ba(OH)2 + H2SO4 = BaSO4 + H2O =>
Ba(OH)2 + H2SO4 = BaSO4 + 2 H2O
C + O2 = CO =>
2 C + O2 = 2 CO
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
CUO + H2SO4 = CUSO4 + H2O =>
CUO + H2SO4 = CUSO4 + H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
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