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Na2O = 2 Na + O
Pb + Cl2 = PbCl4 =>
Pb + 2 Cl2 = PbCl4
Fe2(CO3)2 + H2SO4 = FeSO4 + H2O + CO2 =>
Fe2(CO3)2 + 2 H2SO4 = 2 FeSO4 + 2 H2O + 2 CO2
Ni + HNO3 = Ni(NO3)3 + H2O + N02 =>
10 Ni + 36 HNO3 = 10 Ni(NO3)3 + 18 H2O + 3 N02
Al + PbNO3 = Pb + Al(NO3)2 =>
Al + 2 PbNO3 = 2 Pb + Al(NO3)2
Br2 + CCl4 = Br2C + Cl4 =>
Br2 + CCl4 = Br2C + Cl4
HBr(g) = H(g) + Br2(g) =>
2 HBr(g) = 2 H(g) + Br2(g)
HNO3 + LiOH = LiNO3 + H2O =>
HNO3 + LiOH = LiNO3 + H2O
MnO4 + Na2SO3 + KOH = Na2SO4 + K2MnO4 + H2O =>
MnO4 + Na2SO3 + 2 KOH = Na2SO4 + K2MnO4 + H2O
Cu(NO3) + NaOH = Cu(OH)2 + Na2(NO3) =>
Cu(NO3) + 2 NaOH = Cu(OH)2 + Na2(NO3)
C3H5O3{-} + H2O = CO2 + H{+} + e =>
C3H5O3{-} + 3 H2O = 3 CO2 + 11 H{+} + 12e
H2SO3 + NH3 = NH4HSO3 =>
H2SO3 + NH3 = NH4HSO3
NO2 + S = N2 + SO2 =>
2 NO2 + 2 S = N2 + 2 SO2
B1OH18 + O2 = B2O3 + H2O =>
4 B1OH18 + 19 O2 = 2 B2O3 + 36 H2O
N2O3 + Ag2O = AgNO2 =>
N2O3 + Ag2O = 2 AgNO2
SO2 + Na2O = Na2SO3 =>
SO2 + Na2O = Na2SO3
NH4OH + NaOH = NH4Na + OH =>
NH4OH + NaOH = NH4Na + 2 OH
H2S + LiOH = Li2S + H2O =>
H2S + 2 LiOH = Li2S + 2 H2O
O2 + C4H10O2 + FeN = C6N6Fe + Fe(OH) + H2O =>
7 O2 + 3 C4H10O2 + 12 FeN = 2 C6N6Fe + 10 Fe(OH) + 10 H2O
P + N = PN3 =>
P + 3 N = PN3
Nd2(SO4)3 + Na2SO4 = NdNa(SO4)2 =>
Nd2(SO4)3 + Na2SO4 = 2 NdNa(SO4)2
I2 + C2H2 = HI + C =>
I2 + C2H2 = 2 HI + 2 C
CuFeS2 + HCl + HNO3 = FeCl3 + Cu(NO3)2 + NO2 + H2O + H2S =>
CuFeS2 + 3 HCl + 3 HNO3 = FeCl3 + Cu(NO3)2 + NO2 + H2O + 2 H2S
K2FeO4 + NH3 + H2O = Fe(OH)3 + N2 + KOH =>
2 K2FeO4 + 2 NH3 + 2 H2O = 2 Fe(OH)3 + N2 + 4 KOH
Fe2(SO4)3 + CrCl2 + H2SO4 = FeSO4 + Cr2(SO4)3 + HCl =>
Fe2(SO4)3 + 2 CrCl2 + 2 H2SO4 = 2 FeSO4 + Cr2(SO4)3 + 4 HCl
NaY + Cl2 = NaCl + Y =>
2 NaY + Cl2 = 2 NaCl + 2 Y
Cs2Cl2 + H2SO4 = HCl + Cs2SO4 =>
Cs2Cl2 + H2SO4 = 2 HCl + Cs2SO4
Bi + I2 = BiI2 =>
Bi + I2 = BiI2
K2O + H2SO3 = K2SO3 + H2O =>
K2O + H2SO3 = K2SO3 + H2O
SnCl4 + Na = SnCl2 + NaCl =>
SnCl4 + 2 Na = SnCl2 + 2 NaCl
N2H2(CH3)2(g) + N2O4(g) = CO2(g) + H2O(l) + N2(g) =>
N2H2(CH3)2(g) + 2 N2O4(g) = 2 CO2(g) + 4 H2O(l) + 3 N2(g)
K3[Cr(OH)6] + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O =>
2 K3[Cr(OH)6] + 6 H2SO4 = 3 K2SO4 + Cr2(SO4)3 + 12 H2O
NH4Cl + Na2CO3 = NH3 + NaCl + H2CO3 =>
2 NH4Cl + Na2CO3 = 2 NH3 + 2 NaCl + H2CO3
H3Po4 + AgNO3 = Ag3Po4 + HNO3 =>
H3Po4 + 3 AgNO3 = Ag3Po4 + 3 HNO3
Zn + HNO3 + H2SO4 = ZnSO4 + NO2 + H2O =>
Zn + 2 HNO3 + H2SO4 = ZnSO4 + 2 NO2 + 2 H2O
MnSO4 + Na2S = Na2SO4 + MnS =>
MnSO4 + Na2S = Na2SO4 + MnS
NaClO4 + Na2SO4 + H2O = Na2S2O8 + NaCl + NaOH =>
NaClO4 + 8 Na2SO4 + 4 H2O = 4 Na2S2O8 + NaCl + 8 NaOH
CaO(s) + H2O(l) = Ca(OH)2(l) =>
CaO(s) + H2O(l) = Ca(OH)2(l)
PbSO4 + H2O = Pb + PbO2 + H2SO4 =>
2 PbSO4 + 2 H2O = Pb + PbO2 + 2 H2SO4
NH4Cl + Ba(NO3)2 = BaCl2 + NH4NO3 =>
2 NH4Cl + Ba(NO3)2 = BaCl2 + 2 NH4NO3
C3H10 + O2 = CO2 + H2O =>
2 C3H10 + 11 O2 = 6 CO2 + 10 H2O
Zn + HNO3 = Zn(NO3)2 + H2O + NH3NO4 =>
5 Zn + 14 HNO3 = 5 Zn(NO3)2 + 4 H2O + 2 NH3NO4
Ag2CO3 + PbBr2 = Ag2Br2 + PbCO3 =>
Ag2CO3 + PbBr2 = Ag2Br2 + PbCO3
CH3CHO + NH3 = H2NCH(CH3)OH =>
CH3CHO + NH3 = H2NCH(CH3)OH
HNO3 + P2O5 = HPO3 + N2O5 =>
2 HNO3 + P2O5 = 2 HPO3 + N2O5
Pb(NO3)2 = Pb6 + NO2 + O2 =>
6 Pb(NO3)2 = Pb6 + 12 NO2 + 6 O2
KMnO4 + NaOH + KI = K2MnO4 + KIO3 + H2O + Na2MnO4 =>
6 KMnO4 + 6 NaOH + KI = 3 K2MnO4 + KIO3 + 3 H2O + 3 Na2MnO4
C6H4(OH)COOH + CH3OH = C7H6(OH)COOCH3 + H2O =>
C6H4(OH)COOH + 2 CH3OH = C7H6(OH)COOCH3 + 2 H2O
NaOH + H2 = Na + H2O =>
2 NaOH + H2 = 2 Na + 2 H2O
NaP + Ba(NO3)2 = NaNO3 + BaP2 =>
2 NaP + Ba(NO3)2 = 2 NaNO3 + BaP2
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