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4 Re + 7 O2 = 2 Re2O7
Hg(NO3)2 + Na2S = HgS + NaNO3 =>
Hg(NO3)2 + Na2S = HgS + 2 NaNO3
ZnS + H2SO4 = H2O + ZnSO4 + SO2 =>
ZnS + 4 H2SO4 = 4 H2O + ZnSO4 + 4 SO2
H2 + F2 = HF =>
H2 + F2 = 2 HF
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
AgNO3 + Zn = Zn(NO3) + Ag =>
AgNO3 + Zn = Zn(NO3) + Ag
P4 + H2 = PH3 =>
P4 + 6 H2 = 4 PH3
Al + HNO3 = Al(NO3)3 + NH4 + H2O =>
3 Al + 10 HNO3 = 3 Al(NO3)3 + NH4 + 3 H2O
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
Ba3(PO)4 + C + SnO2 = CO + P4 + BaSnO3 =>
Ba3(PO)4 + C + 3 SnO2 = CO + P4 + 3 BaSnO3
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
Co + ZnCl2 = CoCl2 + Zn =>
Co + ZnCl2 = CoCl2 + Zn
C2H4O2 + O2 = CO2 + H2O =>
C2H4O2 + 2 O2 = 2 CO2 + 2 H2O
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Na2CO3 + C + N2 = NaCN + CO =>
Na2CO3 + 4 C + N2 = 2 NaCN + 3 CO
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
HCl = H2 + Cl2 =>
2 HCl = H2 + Cl2
Li + S = Li2S =>
2 Li + S = Li2S
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
C2H5I + Na = C4H10 + NaI =>
2 C2H5I + 2 Na = C4H10 + 2 NaI
NH4ClO4 + Al = Al2O3 + N2 + HCl + H2O =>
6 NH4ClO4 + 10 Al = 5 Al2O3 + 3 N2 + 6 HCl + 9 H2O
Na + CI = NaCI =>
Na + CI = NaCI
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
Na + CI = NaCI =>
Na + CI = NaCI
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
C2H5OH + Na = C2H5ONa + H2 =>
2 C2H5OH + 2 Na = 2 C2H5ONa + H2
AgBr = Ag + Br2 =>
2 AgBr = 2 Ag + Br2
P4 + NaOH + H2O = PH3 + NaHPO3 =>
7 P4 + 12 NaOH + 24 H2O = 16 PH3 + 12 NaHPO3
K + H3PO4 = K3PO4 + H2 =>
6 K + 2 H3PO4 = 2 K3PO4 + 3 H2
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
KMnO4 + CaC2O4 + H2SO4 = MnSO4 + K2SO4 + CaSO4 + CO2 + H2O =>
2 KMnO4 + 5 CaC2O4 + 8 H2SO4 = 2 MnSO4 + K2SO4 + 5 CaSO4 + 10 CO2 + 8 H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
ClO + KI + HCl = I2 + KCl + H2O =>
2 ClO + 6 KI + 4 HCl = 3 I2 + 6 KCl + 2 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
BaS + PtF2 = BaF2 + PtS =>
BaS + PtF2 = BaF2 + PtS
NH3 = N2 + H2 =>
2 NH3 = N2 + 3 H2
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
PbCl2 + KI = PbI2 + KCl =>
PbCl2 + 2 KI = PbI2 + 2 KCl
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