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2 ZnS + 3 O2 = 2 ZnO + 2 SO2
(NH4)2PO4 + CaCl2 = CaPO4 + NH4Cl =>
(NH4)2PO4 + CaCl2 = CaPO4 + 2 NH4Cl
HCl(aq) + K2CO3(aq) = H2CO3(s) + KCl(aq) =>
2 HCl(aq) + K2CO3(aq) = H2CO3(s) + 2 KCl(aq)
C8H10 + CH3CH2CH2Br = C11H16 + HBr =>
C8H10 + CH3CH2CH2Br = C11H16 + HBr
Ni2*(aq) + S2(aq) = NiS(s) =>
Ni2*(aq) + S2(aq) = 2 NiS(s)
Hg + HNO3 = Hg(NO3)2 + H2O + NO2 =>
Hg + 4 HNO3 = Hg(NO3)2 + 2 H2O + 2 NO2
C2H5OH(aq) + CH3COOH(aq) = CH3COOC2H5(aq) + H2O =>
C2H5OH(aq) + CH3COOH(aq) = CH3COOC2H5(aq) + H2O
(Ca)3(N)2 + (Na)4(C) = (Ca)4(C)2 + (Na)3(N) =>
4(Ca)3(N)2 + 6(Na)4(C) = 3(Ca)4(C)2 + 8(Na)3(N)
HClO4 + Mn(OH)7 = H2O + Mn(ClO4)7 =>
7 HClO4 + Mn(OH)7 = 7 H2O + Mn(ClO4)7
C3H4 + KMnO4 + H2SO4 = CH3COOH + K2SO4 + MnSO4 + H2O =>
10 C3H4 + 8 KMnO4 + 12 H2SO4 = 15 CH3COOH + 4 K2SO4 + 8 MnSO4 + 2 H2O
H3 = H =>
H3 = 3 H
HF + Ca = HCa + F2 =>
2 HF + 2 Ca = 2 HCa + F2
C3H7NO2S + O2 = CO2 + H2O + N2 + SO2 =>
4 C3H7NO2S + 19 O2 = 12 CO2 + 14 H2O + 2 N2 + 4 SO2
N + F = NF3 =>
N + 3 F = NF3
CO + H2O = CO2 + H2 =>
CO + H2O = CO2 + H2
MnO(OH)2 + HCl + KI = MnCl2 + KCl + H2O + I2 =>
MnO(OH)2 + 4 HCl + 2 KI = MnCl2 + 2 KCl + 3 H2O + I2
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Sc + H2SO4 = ScSO4 + SO2 + H2O =>
Sc + 2 H2SO4 = ScSO4 + SO2 + 2 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
CH3CH2CH2CH3 + O2 = CO2 + H2O =>
2 CH3CH2CH2CH3 + 13 O2 = 8 CO2 + 10 H2O
NaClO3 + MnCO3 = NaCl + MnO2 + CO2 =>
NaClO3 + 3 MnCO3 = NaCl + 3 MnO2 + 3 CO2
Pd(NO3)2 + KOH = Pd(OH)2 + KNO3 =>
Pd(NO3)2 + 2 KOH = Pd(OH)2 + 2 KNO3
C6H5MgBr + CO2 = C6H5CO2MgBr =>
C6H5MgBr + CO2 = C6H5CO2MgBr
Cu3N2 = Cu + N2 =>
Cu3N2 = 3 Cu + N2
C57H110O6(g) + O2(g) = CO2(g) + H2O(l) =>
2 C57H110O6(g) + 163 O2(g) = 114 CO2(g) + 110 H2O(l)
NaOH + HCOOCH3 = HCOONa + CH3OH =>
NaOH + HCOOCH3 = HCOONa + CH3OH
NaClO3 + MnCO3 = NaCl + MnO2 + CO2 =>
NaClO3 + 3 MnCO3 = NaCl + 3 MnO2 + 3 CO2
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
C10H12ClNO + (CH3CH2)2NH = C14H22N2O + HCl =>
C10H12ClNO + (CH3CH2)2NH = C14H22N2O + HCl
CH3{-}COOH = CH3{-}CH2OH =>
CH3{-}COOH = CH3{-}CH2OH
K2CrO4 + CH3COOH + BaCl2 = BaCrO4 + K(CH3COO) + HCl =>
K2CrO4 + 2 CH3COOH + BaCl2 = BaCrO4 + 2 K(CH3COO) + 2 HCl
Na3PO4 + LiSO4 = NaSO4 + Li3PO4 =>
Na3PO4 + 3 LiSO4 = 3 NaSO4 + Li3PO4
KHS + KHSO4 = K2S + H2SO4 =>
KHS + KHSO4 = K2S + H2SO4
C14H8O2 + H2O = H9O2 + C14O2 =>
5 C14H8O2 + 16 H2O = 8 H9O2 + 5 C14O2
Pb + CuI = PbI2 + Cu =>
Pb + 2 CuI = PbI2 + 2 Cu
C6H10O + HNO3 = C6H10O4 + NO + H2O =>
C6H10O + 2 HNO3 = C6H10O4 + 2 NO + H2O
BaCl2 + Ni = BaNiCl2 =>
BaCl2 + Ni = BaNiCl2
NaH2PO4 + AgNO3 = AgPO4 + NaNO3 + H =>
NaH2PO4 + AgNO3 = AgPO4 + NaNO3 + 2 H
MnO4 + H3PO3 + H2SO4 = H3PO4 + MnSO4 + H2O =>
MnO4 + 3 H3PO3 + H2SO4 = 3 H3PO4 + MnSO4 + H2O
C14H10 + Na2Cr2O7 + H2SO4 = C14H8O2 + Na2SO4 + Cr2(SO4)3 + H2O =>
C14H10 + Na2Cr2O7 + 4 H2SO4 = C14H8O2 + Na2SO4 + Cr2(SO4)3 + 5 H2O
NaBr + Fe(OH)3 = NaOH + FeBr3 =>
3 NaBr + Fe(OH)3 = 3 NaOH + FeBr3
CaCl2 + AgNO3 = AgCl + Ca(NO3)2 =>
CaCl2 + 2 AgNO3 = 2 AgCl + Ca(NO3)2
Ba(No3)2 + HCl = BaCl2 + HNo3 =>
Ba(No3)2 + 2 HCl = BaCl2 + 2 HNo3
HCl(g) = Cl + H =>
HCl(g) = Cl + H
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
C12H46O9 + O2 = CO2 + H2O =>
C12H46O9 + 19 O2 = 12 CO2 + 23 H2O
Na2Cr2O7 + FeSO4 = Na2SO4 + FeCr2O7 =>
Na2Cr2O7 + FeSO4 = Na2SO4 + FeCr2O7
Cl{-} + H2O = HCl + OH{-} =>
Cl{-} + H2O = HCl + OH{-}
Al3O2 + Fe = Fe3O4 + Al =>
2 Al3O2 + 3 Fe = Fe3O4 + 6 Al
Ca2Mg5Si8O22(OH)2 + CaCO3 = CaMgSi2O6 + CaMg(CO3)2 + H2O + CO2 =>
Ca2Mg5Si8O22(OH)2 + 3 CaCO3 = 4 CaMgSi2O6 + CaMg(CO3)2 + H2O + CO2
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