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4 HNO2 = 2 HNO3 + 2 NO + H2
CuSO4 + Zn = ZnSO4 + Cu =>
CuSO4 + Zn = ZnSO4 + Cu
C6H5CHCH2 + K2Cr2O7 + H2SO4 = C6H5COOH + Cr2(SO4)3 + K2SO4 + H2O =>
21 C6H5CHCH2 + 20 K2Cr2O7 + 80 H2SO4 = 24 C6H5COOH + 20 Cr2(SO4)3 + 20 K2SO4 + 92 H2O
CH3COCH3 + CH3CH2OH = CH3COHOHCH2CH2CH3 =>
CH3COCH3 + CH3CH2OH = CH3COHOHCH2CH2CH3
K2Cr2O7 + HCl = KCl3 + CrCl3 + Cl2 + H2O =>
K2Cr2O7 + 14 HCl = 2 KCl3 + 2 CrCl3 + Cl2 + 7 H2O
Cu + Cr2O7{2-} + H{+} = Cu{2+} + Cr{3+} + H2O =>
3 Cu + Cr2O7{2-} + 14 H{+} = 3 Cu{2+} + 2 Cr{3+} + 7 H2O
CH3OH(g) + O2(g) = CO2(g) + H2O(l) =>
2 CH3OH(g) + 3 O2(g) = 2 CO2(g) + 4 H2O(l)
Al + PbO = AlO + Pb =>
Al + PbO = AlO + Pb
KH(SO4) + KOH = K2(SO4) + H2O =>
KH(SO4) + KOH = K2(SO4) + H2O
Ag2SO3 + Al + H2O = H2S + Ag + Al(OH)3 =>
3 Ag2SO3 + 8 Al + 15 H2O = 3 H2S + 6 Ag + 8 Al(OH)3
Da + O = Da2O =>
2 Da + O = Da2O
Cu(NO3)3 + NaI = NaNO3 + CuI3 =>
Cu(NO3)3 + 3 NaI = 3 NaNO3 + CuI3
C + H2SO4 = CO2 + SO2 + H2O =>
C + 2 H2SO4 = CO2 + 2 SO2 + 2 H2O
Br2 + Ca(OH)2 = CaBr2 + Ca(BrO3)2 + H2O =>
6 Br2 + 6 Ca(OH)2 = 5 CaBr2 + Ca(BrO3)2 + 6 H2O
CoCl2 + KMnO4 + H2SO4 = Cl2 + K2SO4 + MnSO4 + CoSO4 + H2O =>
5 CoCl2 + 2 KMnO4 + 8 H2SO4 = 5 Cl2 + K2SO4 + 2 MnSO4 + 5 CoSO4 + 8 H2O
CH3COOH + C3H7OH = C3H7CH3COOH + H2O =>
9 CH3COOH + 14 C3H7OH = 12 C3H7CH3COOH + 8 H2O
Fe2O3CO = Fe2OCO3 =>
Fe2O3CO = Fe2OCO3
Pb(CH3COO)2 + Li2SO4 = PbSO4 + Li2(CH3COO)2 =>
Pb(CH3COO)2 + Li2SO4 = PbSO4 + Li2(CH3COO)2
HCl + H2O = H3O{+} + Cl{-} =>
HCl + H2O = H3O{+} + Cl{-}
H2C2O4*2H2O + Al(OH)3 = Al2(C2O4)3*2H2O + H2O =>
3 H2C2O4*2H2O + 2 Al(OH)3 = Al2(C2O4)3*2H2O + 10 H2O
Al + CrO4 = AlCrO4 =>
Al + CrO4 = AlCrO4
C4H9Cl + Cl2 = C4H8Cl2 + HCl =>
C4H9Cl + Cl2 = C4H8Cl2 + HCl
HCl + Nh4Br = Nh4Cl + HBr =>
HCl + Nh4Br = Nh4Cl + HBr
Fe{3+} + C6H8O6 = Fe{2+} + C6H6O6 + H{+} =>
2 Fe{3+} + C6H8O6 = 2 Fe{2+} + C6H6O6 + 2 H{+}
K3[Fe(CN)6] + Zn(NO3)2 = Zn3[Fe(CN)6]2 + KNO3 =>
2 K3[Fe(CN)6] + 3 Zn(NO3)2 = Zn3[Fe(CN)6]2 + 6 KNO3
Zn + O2 = ZnO =>
2 Zn + O2 = 2 ZnO
NiSO4 + ZnS2O4 + H2O = ZnSO4 + NiS2 + H2SO4 =>
3 NiSO4 + 7 ZnS2O4 + 4 H2O = 7 ZnSO4 + 3 NiS2 + 4 H2SO4
LiCl + AlSO = LiSO + AlCl =>
LiCl + AlSO = LiSO + AlCl
NH3 + Ag2O + H2O = [Ag(NH3)2]OH =>
4 NH3 + Ag2O + H2O = 2[Ag(NH3)2]OH
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
CoCl2(aq) + Na2CO3(aq) = CoCO3(aq) + ClNa(aq) =>
CoCl2(aq) + Na2CO3(aq) = CoCO3(aq) + 2 ClNa(aq)
N2H4O3 + NaH = NaNO3 + NH3 + H2O =>
5 N2H4O3 + 4 NaH = 4 NaNO3 + 6 NH3 + 3 H2O
Ag = Ag{+3} + e =>
Ag = Ag{+3} + 3e
C2H2O2 + O2 = CO2 + H2O =>
2 C2H2O2 + 3 O2 = 4 CO2 + 2 H2O
Zn + S2 = Zn2S =>
4 Zn + S2 = 2 Zn2S
Na2SO3 + HNO2 = NaNO2 + H2SO3 =>
Na2SO3 + 2 HNO2 = 2 NaNO2 + H2SO3
MnCl2 + Na2HPO4 = MnHPO4 + NaCl =>
MnCl2 + Na2HPO4 = MnHPO4 + 2 NaCl
NaNO3 + NaOH = NaO2 + NH =>
NaNO3 + NaOH = 2 NaO2 + NH
P2S3 = P + S =>
P2S3 = 2 P + 3 S
Si + NaOH + H2O = Na2SiO3 + H2 =>
Si + 2 NaOH + H2O = Na2SiO3 + 2 H2
B2O3(s) + H2O(l) = H3BO3(aq) =>
B2O3(s) + 3 H2O(l) = 2 H3BO3(aq)
LiOHH2SO4 = Li(SO4)H3O =>
LiOHH2SO4 = Li(SO4)H3O
CO + I2O5 = CO2 + I2 =>
5 CO + I2O5 = 5 CO2 + I2
Br2TeO4 + Tl2TeO4 + CrTeO4 + CO2 + H2O = H2TeO4 + Br2CrO4 + Tl2C2O4 =>
Br2TeO4 + 2 Tl2TeO4 + CrTeO4 + 4 CO2 + 4 H2O = 4 H2TeO4 + Br2CrO4 + 2 Tl2C2O4
(NH4)(OH) + Zn(NO3)2 = (NH4)(NO3) + Zn(OH)2 =>
2(NH4)(OH) + Zn(NO3)2 = 2(NH4)(NO3) + Zn(OH)2
MnO4{-} + I{-} + OH{-} = MnO4{2-} + IO3{-} + H2O =>
6 MnO4{-} + I{-} + 6 OH{-} = 6 MnO4{2-} + IO3{-} + 3 H2O
NaOH + AlCl3 = Al(OH)3 + NaCl =>
3 NaOH + AlCl3 = Al(OH)3 + 3 NaCl
PbO + KOH + H2O = K4[Pb(OH)6] =>
PbO + 4 KOH + H2O = K4[Pb(OH)6]
KOH + NiCl2 = KCl + Ni(OH)2 =>
2 KOH + NiCl2 = 2 KCl + Ni(OH)2
Fe3O4(s) + CO(g) = Fe(l) + CO2(g) =>
Fe3O4(s) + 4 CO(g) = 3 Fe(l) + 4 CO2(g)
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