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C + O2 = CO2
C + O2 = CO4 =>
C + 2 O2 = CO4
NH3 + ZnSO4 = Zn(NH3)4 + SO4 =>
4 NH3 + ZnSO4 = Zn(NH3)4 + SO4
PbNO3 = NO2 + PbO =>
PbNO3 = NO2 + PbO
Al + H2SO4 = Al2(SO4)3 + H2S + H2O =>
8 Al + 15 H2SO4 = 4 Al2(SO4)3 + 3 H2S + 12 H2O
NaC + H2O = Na2O + HC =>
2 NaC + H2O = Na2O + 2 HC
N2 + O2 = NO2 =>
N2 + 2 O2 = 2 NO2
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
Ba(NO3)2 + K2CrO7 = BaCrO7 + K(NO3) =>
Ba(NO3)2 + K2CrO7 = BaCrO7 + 2 K(NO3)
NaNO3 + KI + H2SO4 = Na2SO4 + NO + K2SO4 + I2 + H2O =>
2 NaNO3 + 6 KI + 4 H2SO4 = Na2SO4 + 2 NO + 3 K2SO4 + 3 I2 + 4 H2O
FeS2 + KMnO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + K2SO4 + H2O =>
2 FeS2 + 6 KMnO4 + 8 H2SO4 = Fe2(SO4)3 + 6 MnSO4 + 3 K2SO4 + 8 H2O
NH4NO3 = H2O + NH3 + NO2 =>
7 NH4NO3 = 5 H2O + 6 NH3 + 8 NO2
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
Ca + H2O = CaOH + H2 =>
2 Ca + 2 H2O = 2 CaOH + H2
NH4NO3 = N2 + O2 + H2O =>
2 NH4NO3 = 2 N2 + O2 + 4 H2O
Al2S3 + H2SO4 = Al2(SO4)3 + H2S =>
Al2S3 + 3 H2SO4 = Al2(SO4)3 + 3 H2S
Cu(s) + AgNO3(aq) = Cu(NO3)2(aq) + Ag(s) =>
Cu(s) + 2 AgNO3(aq) = Cu(NO3)2(aq) + 2 Ag(s)
Na(s) + Cl2 = NaCl(s) =>
2 Na(s) + Cl2 = 2 NaCl(s)
CuCl2 + PbCH3CO2 = CuCH3CO2 + PbCl2 =>
CuCl2 + PbCH3CO2 = CuCH3CO2 + PbCl2
Al + H2O = Al(OH) + H2 =>
2 Al + 2 H2O = 2 Al(OH) + H2
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
Ca + H2O = Ca(OH)3 + H2 =>
2 Ca + 6 H2O = 2 Ca(OH)3 + 3 H2
Pb(NO3)2 + FeCl2 = PbCl2 + Fe(NO3)2 =>
Pb(NO3)2 + FeCl2 = PbCl2 + Fe(NO3)2
Cu + H2O = Cu(OH)2 + H2 =>
Cu + 2 H2O = Cu(OH)2 + H2
Fe + H2O = Fe(OH)2 + H2 =>
Fe + 2 H2O = Fe(OH)2 + H2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Pb + H2O = Pb(OH)2 + H2 =>
Pb + 2 H2O = Pb(OH)2 + H2
Mg + H2O = Mg(OH)2 + H2 =>
Mg + 2 H2O = Mg(OH)2 + H2
Sn + H2O = Sn(OH)2 + H2 =>
Sn + 2 H2O = Sn(OH)2 + H2
Zn + H2O = Zn(OH)2 + H2 =>
Zn + 2 H2O = Zn(OH)2 + H2
Fe2O3(s) + Al(s) = Fe(l) + Al2O3(s) =>
Fe2O3(s) + 2 Al(s) = 2 Fe(l) + Al2O3(s)
P + O2 = P2O3 =>
4 P + 3 O2 = 2 P2O3
C3H6 + H2O = C2H5H3OOH + CO2 =>
13 C3H6 + 42 H2O = 18 C2H5H3OOH + 3 CO2
HNO3(aq) + Ca(OH)2(aq) = H2O(l) + Ca(NO3)2(aq) =>
2 HNO3(aq) + Ca(OH)2(aq) = 2 H2O(l) + Ca(NO3)2(aq)
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
O2 + H2 = H2O =>
O2 + 2 H2 = 2 H2O
NH4Cl + NaNO2 = NH4NO2 + NaCl =>
NH4Cl + NaNO2 = NH4NO2 + NaCl
NaHSO4 + H2O = H3O + NaSO4 =>
NaHSO4 + H2O = H3O + NaSO4
CH3CO2H(l) + O2(g) = CO2(g) + H2O(g) =>
CH3CO2H(l) + 2 O2(g) = 2 CO2(g) + 2 H2O(g)
MnCl2 + K2CO3 = Mn(CO3) + KCl =>
MnCl2 + K2CO3 = Mn(CO3) + 2 KCl
KClO4 = KCl + O2 =>
KClO4 = KCl + 2 O2
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
Sb2S3 + HCl = SbCl3 + H2S =>
Sb2S3 + 6 HCl = 2 SbCl3 + 3 H2S
NH3 + O2 = N2 + H2O =>
4 NH3 + 3 O2 = 2 N2 + 6 H2O
NH3 + H2SO4 = (NH3)2SO4 + H2 =>
2 NH3 + H2SO4 = (NH3)2SO4 + H2
Al + H3PO4 = H2 + AlPO4 =>
2 Al + 2 H3PO4 = 3 H2 + 2 AlPO4
Mg(CN)2 + HCl = HCN + MgCl2 =>
Mg(CN)2 + 2 HCl = 2 HCN + MgCl2
H{+} + Cr2O7{2-} + Fe{2+} = Cr{3+} + Fe{3+} + H2O =>
14 H{+} + Cr2O7{2-} + 6 Fe{2+} = 2 Cr{3+} + 6 Fe{3+} + 7 H2O
CO + H2 = CH4 + H2O =>
CO + 3 H2 = CH4 + H2O
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