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N2 + 3 H2 = 2 NH3
Zn + CoCl3 = ZnCl2 + Co =>
3 Zn + 2 CoCl3 = 3 ZnCl2 + 2 Co
Cr2S3 + Mn(NO3)2 + Na2CO3 = NO + CO2 + Na2CrO4 + Na2MnO4 + Na2SO4 =>
Cr2S3 + 15 Mn(NO3)2 + 20 Na2CO3 = 30 NO + 20 CO2 + 2 Na2CrO4 + 15 Na2MnO4 + 3 Na2SO4
BaCO3(s) + HCl(aq) = BaCl2(aq) + H2O(l) + CO2(g) =>
BaCO3(s) + 2 HCl(aq) = BaCl2(aq) + H2O(l) + CO2(g)
H2C2O4 + NaOH = Na2C2O4 + H2O =>
H2C2O4 + 2 NaOH = Na2C2O4 + 2 H2O
NH3 + H2SO4 = (NH4)2SO4 =>
2 NH3 + H2SO4 = (NH4)2SO4
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Al + Fe2O3 = Al2O3 + Fe =>
2 Al + Fe2O3 = Al2O3 + 2 Fe
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
XCl2(aq) + AgNO3(aq) = X(NO3)2(aq) + AgCl(s) =>
XCl2(aq) + 2 AgNO3(aq) = X(NO3)2(aq) + 2 AgCl(s)
KBr + KMnO4 + H2SO4 = Br2 + MnSO4 + K2SO4 + H2O =>
10 KBr + 2 KMnO4 + 8 H2SO4 = 5 Br2 + 2 MnSO4 + 6 K2SO4 + 8 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
P4 + HNO3 = H2O + H3PO4 + NO2 =>
P4 + 20 HNO3 = 4 H2O + 4 H3PO4 + 20 NO2
NH4NO3 = N2 + O2 + H2O =>
2 NH4NO3 = 2 N2 + O2 + 4 H2O
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
P4 + HNO3 = H2O + H3PO4 + NO2 =>
P4 + 20 HNO3 = 4 H2O + 4 H3PO4 + 20 NO2
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
Ca + H3PO4 = Ca3(PO4)2 + H2 =>
3 Ca + 2 H3PO4 = Ca3(PO4)2 + 3 H2
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
PbO2 + Sb + NaOH = PbO + NaSbO2 + H2O =>
3 PbO2 + 2 Sb + 2 NaOH = 3 PbO + 2 NaSbO2 + H2O
C5H8O2 + NaH + HCl = C5H12O2 + NaCl =>
C5H8O2 + 2 NaH + 2 HCl = C5H12O2 + 2 NaCl
Ca(OH)2 = CaO + H2O =>
Ca(OH)2 = CaO + H2O
C3H8O2 + ZnO = C3H8Zn + O =>
C3H8O2 + ZnO = C3H8Zn + 3 O
Ca(OH)2 = CaO + H2O =>
Ca(OH)2 = CaO + H2O
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
KBr = K + Br2 =>
2 KBr = 2 K + Br2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
O3 = O2 =>
2 O3 = 3 O2
C2H5OH + Na = C2H5ONa + H2 =>
2 C2H5OH + 2 Na = 2 C2H5ONa + H2
IO3{-} + HAsO2 + H2O = I{-} + H3AsO4 =>
IO3{-} + 3 HAsO2 + 3 H2O = I{-} + 3 H3AsO4
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Na + H2SO4 = Na2SO4 + H2 =>
2 Na + H2SO4 = Na2SO4 + H2
KI + H2SO4 = H2S + I2 + K2SO4 + H2O =>
8 KI + 5 H2SO4 = H2S + 4 I2 + 4 K2SO4 + 4 H2O
C3H8O2 + ZnO = C3H6ZnO2 + H2O =>
C3H8O2 + ZnO = C3H6ZnO2 + H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
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