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Pb(NO3)2 + 2 NaOH = Pb(OH)2 + 2 NaNO3
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
N2 + O2 = N2O3 =>
2 N2 + 3 O2 = 2 N2O3
Na3PO4 + CaCl2 = Ca3(PO4)2 + NaCl =>
2 Na3PO4 + 3 CaCl2 = Ca3(PO4)2 + 6 NaCl
H{+} + NO2{-} + Cr2O7{2-} = Cr{3+} + NO3{-} + H2O =>
8 H{+} + 3 NO2{-} + Cr2O7{2-} = 2 Cr{3+} + 3 NO3{-} + 4 H2O
Al + H2SO4 = H2 + Al(SO4)3 =>
Al + 3 H2SO4 = 3 H2 + Al(SO4)3
H2SO4 + BaO = H2O + BaSO4 =>
H2SO4 + BaO = H2O + BaSO4
Hg + O2 = HgO =>
2 Hg + O2 = 2 HgO
Bi + NH4OH = Bi(OH)3 + (NH4) =>
Bi + 3 NH4OH = Bi(OH)3 + 3(NH4)
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
H2Br3 + P = PBr3 + H2 =>
H2Br3 + P = PBr3 + H2
H3Br3 + P = PBr3 + H2 =>
2 H3Br3 + 2 P = 2 PBr3 + 3 H2
Ca(OH)2 + NH4Cl = CaCl2 + H2O + NH3 =>
Ca(OH)2 + 2 NH4Cl = CaCl2 + 2 H2O + 2 NH3
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Cl2 + NaOH = NaOCl + NaCl + H2O =>
Cl2 + 2 NaOH = NaOCl + NaCl + H2O
HCl + O2 = H2O + Cl2 =>
4 HCl + O2 = 2 H2O + 2 Cl2
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
H3PO4 + CaO = H2O + Ca3(PO4)2 =>
2 H3PO4 + 3 CaO = 3 H2O + Ca3(PO4)2
Fe2O3(aq) + CO(g) = Fe(aq) + CO2(g) =>
Fe2O3(aq) + 3 CO(g) = 2 Fe(aq) + 3 CO2(g)
Fe + Cl2 = FeCl2 =>
Fe + Cl2 = FeCl2
Br2(g) + NaI(aq) = I2(s) + NaBr(aq) =>
Br2(g) + 2 NaI(aq) = I2(s) + 2 NaBr(aq)
Fe + Cl2 = FeCl2 =>
Fe + Cl2 = FeCl2
PbS(s) + O2(g) = PbO(aq) + SO2(g) =>
2 PbS(s) + 3 O2(g) = 2 PbO(aq) + 2 SO2(g)
HNO3 = H2O + NO2 + O2 =>
4 HNO3 = 2 H2O + 4 NO2 + O2
HF + H2O = H3O + F =>
HF + H2O = H3O + F
POCl3 + H2O = H3PO4 + HCl =>
POCl3 + 3 H2O = H3PO4 + 3 HCl
CuS(s) + H2(g) = Cu(s) + H2S(g) =>
CuS(s) + H2(g) = Cu(s) + H2S(g)
Zn + HNO3 = Zn(NO3)2 + N2O + H2O =>
4 Zn + 10 HNO3 = 4 Zn(NO3)2 + N2O + 5 H2O
KOH + H2O = KOH3 + OH =>
KOH + 2 H2O = KOH3 + 2 OH
C4H8 + O2 = CO2 + H2O =>
C4H8 + 6 O2 = 4 CO2 + 4 H2O
CaSO4(s) + C(s) = CaO(s) + CO2(g) + SO2(g) =>
2 CaSO4(s) + C(s) = 2 CaO(s) + CO2(g) + 2 SO2(g)
CuS + H2 = Cu + H2S =>
CuS + H2 = Cu + H2S
FeS2(s) + O2(g) = Fe2O3(s) + SO2(g) =>
4 FeS2(s) + 11 O2(g) = 2 Fe2O3(s) + 8 SO2(g)
ZnSO4 + H2O = H2SO4 + Zn(OH)2 =>
ZnSO4 + 2 H2O = H2SO4 + Zn(OH)2
Ca(OH)2 + HCl = CaCl2 + H2O =>
Ca(OH)2 + 2 HCl = CaCl2 + 2 H2O
NaHCO3 + H2SO4 = Na2SO4 + CO2 + H2O =>
2 NaHCO3 + H2SO4 = Na2SO4 + 2 CO2 + 2 H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
C + S = CS =>
C + S = CS
AgNO3 + K2CrO4 = AgCrO4 + K2NO3 =>
AgNO3 + K2CrO4 = AgCrO4 + K2NO3
H2S + H3AsO3 = As2S3 + H2O =>
3 H2S + 2 H3AsO3 = As2S3 + 6 H2O
FeS2 + Fe{3+} + H2O = Fe{2+} + SO4{2-} + H3O{+} =>
FeS2 + 14 Fe{3+} + 24 H2O = 15 Fe{2+} + 2 SO4{2-} + 16 H3O{+}
(NH4)2Cr2O7(S) = Cr2O3(S) + N2(g) + H2O(g) =>
(NH4)2Cr2O7(S) = Cr2O3(S) + N2(g) + 4 H2O(g)
NH3 + O2 = N2 + H2O =>
4 NH3 + 3 O2 = 2 N2 + 6 H2O
AlCl3 + Cl2 = AlCl5 =>
AlCl3 + Cl2 = AlCl5
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
FeS + Fe{3+} + H2O = Fe{2+} + SO4{2-} + H3O{+} =>
FeS + 8 Fe{3+} + 12 H2O = 9 Fe{2+} + SO4{2-} + 8 H3O{+}
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Ca(OH)2 + CO2 = CaCO3 + H2O =>
Ca(OH)2 + CO2 = CaCO3 + H2O
H2(g) + O2(g) = H2O(i) =>
2 H2(g) + O2(g) = 2 H2O(i)
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
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