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4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
Al4C3 + H2O = CH4 + Al(OH)3 =>
Al4C3 + 12 H2O = 3 CH4 + 4 Al(OH)3
F2 + H2O = OF2 + HF =>
2 F2 + H2O = OF2 + 2 HF
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Al2O3 + HCl = AlCl3 + H2O =>
Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O
CaCl2 + K3PO4 = Ca3(PO4)2 + KCl =>
3 CaCl2 + 2 K3PO4 = Ca3(PO4)2 + 6 KCl
CaF2 + Li2SO4 = CaSO4 + LiF =>
CaF2 + Li2SO4 = CaSO4 + 2 LiF
Cu(OH)2 = CuO + H2O =>
Cu(OH)2 = CuO + H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Fe + Br = FeBr3 =>
Fe + 3 Br = FeBr3
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
H2CO3 + Ca(OH)2 = CaCO3 + H2O =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 H2O
CoCl3(aq) + K2S(aq) = Co2S3(s) + KCl(aq) =>
2 CoCl3(aq) + 3 K2S(aq) = Co2S3(s) + 6 KCl(aq)
Zn + CuSO = ZnSO + Cu =>
Zn + CuSO = ZnSO + Cu
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
FeS + O2 = Fe2O45 + SO2 =>
4 FeS + 49 O2 = 2 Fe2O45 + 4 SO2
H3PO4 + Mg(OH)2 = Mg3(PO4)2 + H2O =>
2 H3PO4 + 3 Mg(OH)2 = Mg3(PO4)2 + 6 H2O
N2(g) + H2(g) = NH3(g) =>
N2(g) + 3 H2(g) = 2 NH3(g)
Hg{2+} + Cr = Hg{-}2{2+} + Cr{3+} =>
Hg{2+} + Cr = Hg{-}2{2+} + Cr{3+}
Ba + H2O = Ba(OH)2 + H2 =>
Ba + 2 H2O = Ba(OH)2 + H2
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
CO + H2 = C3H8 + H2O =>
3 CO + 7 H2 = C3H8 + 3 H2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Hg{2+} + Cr = Hg2{2+} + Cr{3+} =>
6 Hg{2+} + 2 Cr = 3 Hg2{2+} + 2 Cr{3+}
Ca + H2 = CaH2 =>
Ca + H2 = CaH2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
HBr + Mg(OH)2 = MgBr2 + H2O =>
2 HBr + Mg(OH)2 = MgBr2 + 2 H2O
H2(g) + N2(g) = NH3(g) =>
3 H2(g) + N2(g) = 2 NH3(g)
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
BaCl2 + Al2(SO4)3 = BaSO4 + AlCl3 =>
3 BaCl2 + Al2(SO4)3 = 3 BaSO4 + 2 AlCl3
Na + MgCl2 = NaCl + Mg =>
2 Na + MgCl2 = 2 NaCl + Mg
FeCl3 + MgO = Fe2O3 + MgCl2 =>
2 FeCl3 + 3 MgO = Fe2O3 + 3 MgCl2
F2 + H2O = HF + O2 =>
2 F2 + 2 H2O = 4 HF + O2
C6H8O7 + KOH = K3C6H5O7 + H2O =>
C6H8O7 + 3 KOH = K3C6H5O7 + 3 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Ca3N2 + H2O = Ca(OH)2 + NH3 =>
Ca3N2 + 6 H2O = 3 Ca(OH)2 + 2 NH3
HCl + O2 = H2O + Cl2 =>
4 HCl + O2 = 2 H2O + 2 Cl2
LiNO3 + CaBr2 = Ca(NO3)2 + LiBr =>
2 LiNO3 + CaBr2 = Ca(NO3)2 + 2 LiBr
NH3(g) + O2(g) = NO(g) + H2O(l) =>
4 NH3(g) + 5 O2(g) = 4 NO(g) + 6 H2O(l)
Cu(OH)2 + H2SO4 = CuSO4 + H2O =>
Cu(OH)2 + H2SO4 = CuSO4 + 2 H2O
Sb + O2 = Sb4O6 =>
4 Sb + 3 O2 = Sb4O6
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
NaH + H2O = NaOH + H2 =>
NaH + H2O = NaOH + H2
BeO + C = Be2C + CO2 =>
2 BeO + 2 C = Be2C + CO2
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
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