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2 PbS(s) + 3 O2(g) = 2 PbO(s) + 2 SO2(g)
Na2CO3 + SnCl4 + H2O = NaCl + CO2 + H2SnO3 =>
2 Na2CO3 + SnCl4 + H2O = 4 NaCl + 2 CO2 + H2SnO3
MnO4{-} + SO3{2-} + H2O = MnO2 + SO4{2-} + OH{-} =>
2 MnO4{-} + 3 SO3{2-} + H2O = 2 MnO2 + 3 SO4{2-} + 2 OH{-}
Cu(NO3)2 = CuO + NO2 + O2 =>
2 Cu(NO3)2 = 2 CuO + 4 NO2 + O2
MoO3 + NaOH = Na2MoO4 + H2O =>
MoO3 + 2 NaOH = Na2MoO4 + H2O
MnCl6 + KOH = KMnO4 + MnO2 + KCl + H2O =>
3 MnCl6 + 20 KOH = 2 KMnO4 + MnO2 + 18 KCl + 10 H2O
KClO3 + PCl3 = PCl3O + KCl =>
KClO3 + 3 PCl3 = 3 PCl3O + KCl
N2 + O2 + H2O = HNO3 =>
2 N2 + 5 O2 + 2 H2O = 4 HNO3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
MoO3 + HI = Mo2O5 + I2 + H2O =>
2 MoO3 + 2 HI = Mo2O5 + I2 + H2O
Hg2Cl2 + SnCl2 = SnCl4 + Hg =>
Hg2Cl2 + SnCl2 = SnCl4 + 2 Hg
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
BaSO4 + H2O = Ba(OH)2 + H2SO4 =>
BaSO4 + 2 H2O = Ba(OH)2 + H2SO4
PbCl2 + KI = PbI2 + KCl =>
PbCl2 + 2 KI = PbI2 + 2 KCl
H2SO4 + Ca3P2O8 = CaSO4 + H3PO4 =>
3 H2SO4 + Ca3P2O8 = 3 CaSO4 + 2 H3PO4
Na2SO4 + Ti2(SO4)3 = Na3Ti(SO4)3 =>
3 Na2SO4 + Ti2(SO4)3 = 2 Na3Ti(SO4)3
H2O + P2O5 = H3PO4 =>
3 H2O + P2O5 = 2 H3PO4
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
FeSO4 + HNO3 + H2SO4 = Fe2(SO4)3 + NO + H2O =>
6 FeSO4 + 2 HNO3 + 3 H2SO4 = 3 Fe2(SO4)3 + 2 NO + 4 H2O
KOH + HMnO4 = KMnO4 + H2O =>
KOH + HMnO4 = KMnO4 + H2O
Mg + HNO3 = Mg(NO3)2 + H2 =>
Mg + 2 HNO3 = Mg(NO3)2 + H2
Al + K2Cr2O7 + H2SO4 = Al2(SO4)3 + Cr2(SO4)3 + K2SO4 + H2O =>
2 Al + K2Cr2O7 + 7 H2SO4 = Al2(SO4)3 + Cr2(SO4)3 + K2SO4 + 7 H2O
SeCl6 + O2 = SeO2 + Cl2 =>
SeCl6 + O2 = SeO2 + 3 Cl2
Mg + HNO3 = Mg(NO3)2 + NH4NO3 + H3O =>
11 Mg + 26 HNO3 = 11 Mg(NO3)2 + 2 NH4NO3 + 6 H3O
Na2SO3 + HCl = NaCl + H2O + SO2 =>
Na2SO3 + 2 HCl = 2 NaCl + H2O + SO2
O2(g) = O3(g) =>
3 O2(g) = 2 O3(g)
Mg + HNO3 = Mg(NO3)2 + NH4NO3 + H2O =>
4 Mg + 10 HNO3 = 4 Mg(NO3)2 + NH4NO3 + 3 H2O
KMnO4 + K2SO3 + H2O = MnO2 + K2SO4 + KOH =>
2 KMnO4 + 3 K2SO3 + H2O = 2 MnO2 + 3 K2SO4 + 2 KOH
Cr2(SO4)3 + KMnO4 + KOH = K2CrO4 + MnO + K2SO4 + H2O =>
5 Cr2(SO4)3 + 6 KMnO4 + 44 KOH = 10 K2CrO4 + 6 MnO + 15 K2SO4 + 22 H2O
Al + H2O = Al2O3 + H2 =>
2 Al + 3 H2O = Al2O3 + 3 H2
KMnO4 + K2SO3 + OH = MnO2 + K2SO4 + KOH =>
KMnO4 + 2 K2SO3 + OH = MnO2 + 2 K2SO4 + KOH
KMnO4 + K2SO3 + H = MnO2 + K2SO4 + KOH =>
KMnO4 + K2SO3 + H = MnO2 + K2SO4 + KOH
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
MoO3 + NaOH = Na2MoO4 + H2O =>
MoO3 + 2 NaOH = Na2MoO4 + H2O
(NH4)2SO4 + NaOH = Na2SO4 + NH3 + H2O =>
(NH4)2SO4 + 2 NaOH = Na2SO4 + 2 NH3 + 2 H2O
MoO3 + NaOH = Na2MoO4 + H2O =>
MoO3 + 2 NaOH = Na2MoO4 + H2O
HCl + NAOH = H2O + NACl =>
HCl + NAOH = H2O + NACl
(NH4)2CO3 + NaOH = Na2CO3 + NH3 + H2O =>
(NH4)2CO3 + 2 NaOH = Na2CO3 + 2 NH3 + 2 H2O
zinc + oxygen = zincoxide =>
2 Zn + O2 = 2 ZnO
MG(OH)2 + HCl = MGCl2 + H2O =>
MG(OH)2 + 2 HCl = MGCl2 + 2 H2O
C7H10 + O2 = CO2 + H2O =>
2 C7H10 + 19 O2 = 14 CO2 + 10 H2O
HCl + NaOH = H2O + NaCl =>
HCl + NaOH = H2O + NaCl
C7H6O2 + C2H6O = C8H8O2 + H2O =>
2 C7H6O2 + C2H6O = 2 C8H8O2 + H2O
NH3 + H2S = (NH4)2S =>
2 NH3 + H2S = (NH4)2S
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
HCl + NaOH = H2O + NaCl =>
HCl + NaOH = H2O + NaCl
CH3OH + O2 = H20 + CO2 =>
10 CH3OH + 5 O2 = 2 H20 + 10 CO2
BaCl2 + Na2So4 = BaSo4 + NaCl =>
BaCl2 + Na2So4 = BaSo4 + 2 NaCl
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