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2 C2H4O + 5 O2 = 4 CO2 + 4 H2O
PBr2 = P2Br4 =>
2 PBr2 = P2Br4
Fe{2}O{3} + Al = Fe{+} + Al{2}O{3} =>
2 Fe{2}O{3} + Al = 2 Fe{+} + Al{2}O{3}
Ca(OH)2 + SO3 = CaSO4 + H2O =>
Ca(OH)2 + SO3 = CaSO4 + H2O
Na + H2CO3 = Na2CO3 + H2 =>
2 Na + H2CO3 = Na2CO3 + H2
Fe2(SO4)3 + Ca(OH)2 = Fe(OH)3 + Ca(SO4) =>
Fe2(SO4)3 + 3 Ca(OH)2 = 2 Fe(OH)3 + 3 Ca(SO4)
C17H33COOH + Br2 = C17H33Br2COOH =>
C17H33COOH + Br2 = C17H33Br2COOH
ZnBr2 + LiOH = Zn(OH)2 + LiBr =>
ZnBr2 + 2 LiOH = Zn(OH)2 + 2 LiBr
Al + F2 = AlF3 =>
2 Al + 3 F2 = 2 AlF3
Fe + O2 = FeO3 =>
2 Fe + 3 O2 = 2 FeO3
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
Na2CO3 + CuSO4 = CuCO3 + Na2SO4 =>
Na2CO3 + CuSO4 = CuCO3 + Na2SO4
C + O2 + H2 = CH3CHO =>
4 C + O2 + 4 H2 = 2 CH3CHO
NO2 + H = HNO3 + NO =>
2 NO2 + H = HNO3 + NO
C8H18 + NO = CO2 + N2 + H2O =>
2 C8H18 + 50 NO = 16 CO2 + 25 N2 + 18 H2O
CH3CH2CH2Br + KOH(alcohol) = CH3CH2CH2OH + KBr =>
CH3CH2CH2Br + KOH(alcohol) = CH3CH2CH2OH + KBr
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Fe(II)Cl2NaOH = Fe(II)OHNaCl2 =>
Fe(II)Cl2NaOH = Fe(II)OHNaCl2
KBr + Pb(NO3)2 = KNO3 + PbBr2 =>
2 KBr + Pb(NO3)2 = 2 KNO3 + PbBr2
KOH2 + HNO3 = KNO3 + HOH2 =>
KOH2 + HNO3 = KNO3 + HOH2
K2SiO3 + CH3COOH = KCH3COO + H2SiO3 =>
K2SiO3 + 2 CH3COOH = 2 KCH3COO + H2SiO3
NH3 + O2 = H2O + NO =>
4 NH3 + 5 O2 = 6 H2O + 4 NO
Mg(NO3)2 = Mg(NO2)2 + O2 =>
Mg(NO3)2 = Mg(NO2)2 + O2
SO2 + Cu(OH)2 = CuSO3 + HOH =>
SO2 + Cu(OH)2 = CuSO3 + HOH
H2SO4 + Ba(NO3)2 = H2SO4Ba(NO3)2 =>
H2SO4 + Ba(NO3)2 = H2SO4Ba(NO3)2
Zn(NO3)2 + K3(Fe(CN)6) = Zn3(Fe(CN)6)2 + K(NO3) =>
3 Zn(NO3)2 + 2 K3(Fe(CN)6) = Zn3(Fe(CN)6)2 + 6 K(NO3)
Na2Cr2O7 + H2SO4 + H2O2 = CrO5 + Na2SO4 + H2O =>
Na2Cr2O7 + H2SO4 + 4 H2O2 = 2 CrO5 + Na2SO4 + 5 H2O
K3 + H2O = KOH + H3 =>
K3 + 3 H2O = 3 KOH + H3
Br(l) + KI(aq) = BrKI =>
Br(l) + KI(aq) = BrKI
H2Te + Zn(OH)2 = ZnTe + H2O =>
H2Te + Zn(OH)2 = ZnTe + 2 H2O
S7 = S13 =>
13 S7 = 7 S13
Fe2O3 + HCl = FeCl3 + H2O =>
Fe2O3 + 6 HCl = 2 FeCl3 + 3 H2O
Na2Cr2O7 + H2SO4 + NaHSO3 = CrOHSO4 + Na2SO4 + H2O =>
2 Na2Cr2O7 + 3 H2SO4 + 6 NaHSO3 = 4 CrOHSO4 + 5 Na2SO4 + 4 H2O
CH3COCH2COOCH3 + CH3COH = C10O3H11 + H2O =>
10 CH3COCH2COOCH3 + 5 CH3COH = 6 C10O3H11 + 17 H2O
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
CaH2O = CaOHH =>
CaH2O = CaOHH
FeC3 + NH4OH = Fe(OH)3 + NH4C =>
FeC3 + 3 NH4OH = Fe(OH)3 + 3 NH4C
Cu(NH3)4SO4BaCl2 = Cu(NH3)4Cl2BaSO4 =>
Cu(NH3)4SO4BaCl2 = Cu(NH3)4Cl2BaSO4
Na2Cr2O7 + H2SO4 + H2O2 = H3CrO8 + H2O + Na2SO4 =>
Na2Cr2O7 + H2SO4 + 7 H2O2 = 2 H3CrO8 + 5 H2O + Na2SO4
CaF2 + Li2SO4 = CaSO4 + LiF =>
CaF2 + Li2SO4 = CaSO4 + 2 LiF
AgNO3 + CuSO4 = Ag2SO4 + Cu(NO3)2 =>
2 AgNO3 + CuSO4 = Ag2SO4 + Cu(NO3)2
KIO3 + KI + HCl = KICl4 + H2O =>
2 KIO3 + KI + 12 HCl = 3 KICl4 + 6 H2O
Ca3(PO4)2 = CaO + P4O10 =>
2 Ca3(PO4)2 = 6 CaO + P4O10
CuCO3(Cu(OH)2) + HBF4 = Cu(BF4)2 + H2CO3 + H2O =>
CuCO3(Cu(OH)2) + 4 HBF4 = 2 Cu(BF4)2 + H2CO3 + 2 H2O
CO3{-2} + HCl = HCO3{-} + Cl{-} =>
CO3{-2} + HCl = HCO3{-} + Cl{-}
Ca3(PO4)2 = Ca + PO4 =>
Ca3(PO4)2 = 3 Ca + 2 PO4
N2 + O2 = N2O5 =>
2 N2 + 5 O2 = 2 N2O5
Na2Cr2O7 + H2O2 + H2SO4 = H2CrO6 + Na2SO4 + H2O =>
Na2Cr2O7 + 4 H2O2 + H2SO4 = 2 H2CrO6 + Na2SO4 + 3 H2O
Rb + Sn(SO4)2 = Rb2SO4 + Sn =>
4 Rb + Sn(SO4)2 = 2 Rb2SO4 + Sn
I4O9 = I2O5 + I2 + O2 =>
4 I4O9 = 6 I2O5 + 2 I2 + 3 O2
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