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2 Na + 2(H)2O = 2 NaOH + H2
FeI2 + Cu(NO3)2 = Fe(NO3)2 + CuI + I2 =>
2 FeI2 + 2 Cu(NO3)2 = 2 Fe(NO3)2 + 2 CuI + I2
H2SO4 + CuSO4 = Cu(SO4)2 + H2 =>
H2SO4 + CuSO4 = Cu(SO4)2 + H2
Ca + H2PO4 = Ca3PO4 + H2 =>
3 Ca + H2PO4 = Ca3PO4 + H2
C2H4O2S + O2 = CO2 + H2O + SO3 =>
2 C2H4O2S + 7 O2 = 4 CO2 + 4 H2O + 2 SO3
PbCO3(s) = PbO(s) + CO2(g)PbCO3(s) = PbO(s) + CO2(g) =>
2 PbCO3(s) = PbO(s) + CO2(g)PbCO3(s)
Bi2S3 + (NH4)2S = (NH4)3BiS3 =>
Bi2S3 + 3(NH4)2S = 2(NH4)3BiS3
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
Fe(OH)3 + H = Fe + H2O =>
Fe(OH)3 + 3 H = Fe + 3 H2O
NaAlO2 + H2SO4 = Al2(SO4)3 + Na2SO4 + H2O =>
2 NaAlO2 + 4 H2SO4 = Al2(SO4)3 + Na2SO4 + 4 H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
MgO + Na2SO4 = MgSO4 + Na2O =>
MgO + Na2SO4 = MgSO4 + Na2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
SO2 + KBrO4 + H2O = H2SO4 + KBr =>
4 SO2 + KBrO4 + 4 H2O = 4 H2SO4 + KBr
H2SnCl4 + HCl + Hg(NO3)2 = H2[SnCl6] + Hg2(NO3)2 + HNO3 =>
H2SnCl4 + 2 HCl + 2 Hg(NO3)2 = H2[SnCl6] + Hg2(NO3)2 + 2 HNO3
CH3COOH + HCl = H2 + CH3COOCl =>
CH3COOH + HCl = H2 + CH3COOCl
MgBr2 + S = MgS + Br =>
MgBr2 + S = MgS + 2 Br
Pb + NH4OH = Pb(NH3) + H2O =>
Pb + NH4OH = Pb(NH3) + H2O
H{+} + CH3CH2OH + CrO4{2-} = Cr{3+} + CH3COOH + H2O =>
20 H{+} + 3 CH3CH2OH + 4 CrO4{2-} = 4 Cr{3+} + 3 CH3COOH + 13 H2O
C6H13Cl + Na = C12H26 + NaCl =>
2 C6H13Cl + 2 Na = C12H26 + 2 NaCl
Mg + AgNO3 = Mg(NO3)2 + Ag =>
Mg + 2 AgNO3 = Mg(NO3)2 + 2 Ag
Pb(NO3)2 + K2CrO4 = PbCrO4 + NO3K =>
Pb(NO3)2 + K2CrO4 = PbCrO4 + 2 NO3K
Ni3S2 + NiO = Ni + SO2 =>
Ni3S2 + 4 NiO = 7 Ni + 2 SO2
H2O + CO2 = C6H12O6 + O2 =>
6 H2O + 6 CO2 = C6H12O6 + 6 O2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Zn + H3PO4 = Zn3(PO4)2 + H2 =>
3 Zn + 2 H3PO4 = Zn3(PO4)2 + 3 H2
SnCl2(aq) + AgNO3(aq) = AgCl(s) + Sn(NO3)2(aq) =>
SnCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Sn(NO3)2(aq)
KBr + KMnO4 + H2SO4 = Br2 + MnSO4 + K2SO4 + H2O =>
10 KBr + 2 KMnO4 + 8 H2SO4 = 5 Br2 + 2 MnSO4 + 6 K2SO4 + 8 H2O
Cr2O3 + NaOH = Cr2OH + NaO3 =>
Cr2O3 + NaOH = Cr2OH + NaO3
KMnO4 + Na2SO3 + H2O = KOH + MnO2 + Na2SO4 =>
2 KMnO4 + 3 Na2SO3 + H2O = 2 KOH + 2 MnO2 + 3 Na2SO4
K2Cr2O7(aq) + AgNO3(aq) = Ag2Cr2O7 + KNO3(aq) =>
K2Cr2O7(aq) + 2 AgNO3(aq) = Ag2Cr2O7 + 2 KNO3(aq)
BN + F2 = BF + N =>
2 BN + F2 = 2 BF + 2 N
C7H8 + KMnO4 = C7H6O2 + MnO2 + KOH =>
C7H8 + 2 KMnO4 = C7H6O2 + 2 MnO2 + 2 KOH
Nb + O = Nb2O5 =>
2 Nb + 5 O = Nb2O5
CaS + H2O = H2S + Ca(OH)2 =>
CaS + 2 H2O = H2S + Ca(OH)2
Na2O(s) + H2O(i) = NaOH(aq) =>
Na2O(s) + H2O(i) = 2 NaOH(aq)
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
CH3(CO)OH + HCl = H2 + CH3COOCl =>
CH3(CO)OH + HCl = H2 + CH3COOCl
K3N + O2 = NO + K =>
2 K3N + O2 = 2 NO + 6 K
CH4 = C2H8 =>
2 CH4 = C2H8
FeC2O4H4O2 + H2O2 = Fe(C2O4){+} + OH{-} + H2O =>
2 FeC2O4H4O2 + H2O2 = 2 Fe(C2O4){+} + 2 OH{-} + 4 H2O
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
K3N + Ca = Ca3N2 + K =>
2 K3N + 3 Ca = Ca3N2 + 6 K
NaCl + K[Sb(OH)6] = Na[Sb(OH)6] + KCl =>
NaCl + K[Sb(OH)6] = Na[Sb(OH)6] + KCl
Mg + CuSO4 = MgSO4 + Cu =>
Mg + CuSO4 = MgSO4 + Cu
HC4H3N2O5 + H2O = H3O + C4H3N2O5 =>
HC4H3N2O5 + H2O = H3O + C4H3N2O5
B + HNO3 + H2O = H3BO3 + NO =>
B + HNO3 + H2O = H3BO3 + NO
MgCO3(s) + CH3COOH(aq) = CH3COOMg(aq) + H2O(l) + CO2(g) =>
8 MgCO3(s) + 9 CH3COOH(aq) = 8 CH3COOMg(aq) + 6 H2O(l) + 10 CO2(g)
Ca(ClO3)2 = CaCl2 + O2 =>
Ca(ClO3)2 = CaCl2 + 3 O2
HBr + C3H6O = H2O + C3H5Br =>
HBr + C3H6O = H2O + C3H5Br
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