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(NH4)2S + 2 NaOH = Na2S + 2 NH3 + 2 H2O
HNO2 + HCl = Cl2 + NO + H2O =>
2 HNO2 + 2 HCl = Cl2 + 2 NO + 2 H2O
NaOH + SiO2 = NaSiO3H =>
NaOH + SiO2 = NaSiO3H
Bi2S3 + O2 = Bi2O3 + SO2 =>
2 Bi2S3 + 9 O2 = 2 Bi2O3 + 6 SO2
CuSO4 + NaOH = Cu2(OH)2SO4 + Na2SO4 =>
2 CuSO4 + 2 NaOH = Cu2(OH)2SO4 + Na2SO4
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
C2H5COOH + K2CO3 = KC2H5COO + CO2 + H20 =>
90 C2H5COOH + 40 K2CO3 = 80 KC2H5COO + 70 CO2 + 7 H20
P + O = P2O5 =>
2 P + 5 O = P2O5
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
NH4Cl(s) = NH3(g) + HCl(g) =>
NH4Cl(s) = NH3(g) + HCl(g)
NaNO2 + KMnO4 + H2SO4 = NaNO3 + MnSO4 + K2SO4 + H2O =>
5 NaNO2 + 2 KMnO4 + 3 H2SO4 = 5 NaNO3 + 2 MnSO4 + K2SO4 + 3 H2O
I2 + Cl = ICl3 =>
I2 + 6 Cl = 2 ICl3
AlCl3 + H2So4 = Al2(So4)3 + HCl =>
2 AlCl3 + 3 H2So4 = Al2(So4)3 + 6 HCl
WO3 + H2 = W + H2O =>
WO3 + 3 H2 = W + 3 H2O
NaOH + K2SO4 = NaSO4 + K2OH =>
NaOH + K2SO4 = NaSO4 + K2OH
Fe + HNO3 = Fe(NO3)2 + H2O + NO =>
3 Fe + 8 HNO3 = 3 Fe(NO3)2 + 4 H2O + 2 NO
Ca(s) + O2(g) = CaO2 =>
Ca(s) + O2(g) = CaO2
KI + Pb(NO3)2 = KNO3 + PbI2 =>
2 KI + Pb(NO3)2 = 2 KNO3 + PbI2
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
C + HNO3 = NO2 + CO2 + H2O =>
C + 4 HNO3 = 4 NO2 + CO2 + 2 H2O
HNO3 + BACO3 = HCO3 + BANO3 =>
HNO3 + BACO3 = HCO3 + BANO3
O2H4 + Fe = Fe3O4 + H2 =>
2 O2H4 + 3 Fe = Fe3O4 + 4 H2
CH3COH + Ag2O = CH3COOH + Ag =>
CH3COH + Ag2O = CH3COOH + 2 Ag
CH3OH + C2H5COOH = C2H5COOCH3 + H2O =>
CH3OH + C2H5COOH = C2H5COOCH3 + H2O
NaOH + SiO2 = Na2SiO3 + H2O =>
2 NaOH + SiO2 = Na2SiO3 + H2O
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
HF + KOH = KF + H2O =>
HF + KOH = KF + H2O
S + O = S2O =>
2 S + O = S2O
BaO + H2O = Ba(OH)2 =>
BaO + H2O = Ba(OH)2
C6H5OH + NaOH = C6H5ONa + H2O =>
C6H5OH + NaOH = C6H5ONa + H2O
Cr(OH)2 = CrO + H2O =>
Cr(OH)2 = CrO + H2O
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
Fe{3+} + OH{-} = Fe(OH)3 =>
Fe{3+} + 3 OH{-} = Fe(OH)3
H2 + Cu = CuH =>
H2 + 2 Cu = 2 CuH
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
C3H8O3 + Cu(OH)2 = C3H6O3Cu + H2O =>
C3H8O3 + Cu(OH)2 = C3H6O3Cu + 2 H2O
C6H5OH + CH3OH = C7H8O + H2O =>
C6H5OH + CH3OH = C7H8O + H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
O2H4 + Fe = Fe3O4 + H2 =>
2 O2H4 + 3 Fe = Fe3O4 + 4 H2
H2So4 + Ba(OH)3 = Ba2(So4)3 + H2O =>
3 H2So4 + 2 Ba(OH)3 = Ba2(So4)3 + 6 H2O
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
Mg(OH)2(heat) = MgO + H2O =>
Mg(OH)2(heat) = MgO + H2O
C6H5OH + CH3OH = CH3C6H4(OH) + H2O =>
C6H5OH + CH3OH = CH3C6H4(OH) + H2O
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
Cl2 + P = PCl3 =>
3 Cl2 + 2 P = 2 PCl3
Na2CO3 = Na2O2 + CO =>
Na2CO3 = Na2O2 + CO
H2So4 + Cr(OH)3 = Cr2(So4)3 + H2O =>
3 H2So4 + 2 Cr(OH)3 = Cr2(So4)3 + 6 H2O
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