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2 Mg9 + 9 O2 = 18 MgO
MnS + CH3COOH = H2S + Mn(CH3COO)2 =>
MnS + 2 CH3COOH = H2S + Mn(CH3COO)2
Cu + SN = S + CuN =>
Cu + SN = S + CuN
NaBH4 + B2H6 = Na2B12H12 + H2 =>
2 NaBH4 + 5 B2H6 = Na2B12H12 + 13 H2
Pb(NO3)2 + (NH4)Cl = PbCl2 + NH4NO3 =>
Pb(NO3)2 + 2(NH4)Cl = PbCl2 + 2 NH4NO3
Si + NiO = SiO2 + Ni =>
Si + 2 NiO = SiO2 + 2 Ni
NHCl + KNO3 = NHNO3 + KCl =>
NHCl + KNO3 = NHNO3 + KCl
Hg(NO3)2 + ZnCl2 = HgCl2 + Zn(NO3)2 =>
Hg(NO3)2 + ZnCl2 = HgCl2 + Zn(NO3)2
C6H8O7 + CuO = Cu2O + CO2 + H2O =>
C6H8O7 + 18 CuO = 9 Cu2O + 6 CO2 + 4 H2O
CuO(s) + HCl(l) = CuCl2(s) + H2O(l) =>
CuO(s) + 2 HCl(l) = CuCl2(s) + H2O(l)
Zn(OH)2 + KOH = K2[Zn(OH)4] =>
Zn(OH)2 + 2 KOH = K2[Zn(OH)4]
H2O2(ag) = H2O(l) + O2(g) =>
2 H2O2(ag) = 2 H2O(l) + O2(g)
P2O5(g) + H2O(l) = H3PO4 =>
P2O5(g) + 3 H2O(l) = 2 H3PO4
Co(OH)3 + H(NO3) = Co(NO3)3 + H2O =>
Co(OH)3 + 3 H(NO3) = Co(NO3)3 + 3 H2O
C4H6 + Br2 = C4H6Br =>
2 C4H6 + Br2 = 2 C4H6Br
Fe + CuSO3 = Fe2(SO3)3 + Cu =>
2 Fe + 3 CuSO3 = Fe2(SO3)3 + 3 Cu
ClO2{-} + H2O = HClO2 + OH{-} =>
ClO2{-} + H2O = HClO2 + OH{-}
HNO3(aq) + NH3(aq) = NH4(aq) + NO3(aq) =>
HNO3(aq) + NH3(aq) = NH4(aq) + NO3(aq)
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
H2SO4(aq) + V2O3(s) = V2(SO4)3 + H2O =>
3 H2SO4(aq) + V2O3(s) = V2(SO4)3 + 3 H2O
V2O5(s) + HCl(aq) = VOCl3(aq) + H2O(l) =>
V2O5(s) + 6 HCl(aq) = 2 VOCl3(aq) + 3 H2O(l)
MnO2 + Al(s) = Mn + Al2O3 =>
3 MnO2 + 4 Al(s) = 3 Mn + 2 Al2O3
SeCI2 + O2 = SeO2 + CI2 =>
SeCI2 + O2 = SeO2 + CI2
Zn + As = Zn3As2 =>
3 Zn + 2 As = Zn3As2
CH3COOH(l) + C2H5OH(l) = CH3COOC2H5(l) + H2O(l) =>
CH3COOH(l) + C2H5OH(l) = CH3COOC2H5(l) + H2O(l)
Al2O3 + HCl + H2O = Al(H2O)6Cl3 =>
Al2O3 + 6 HCl + 9 H2O = 2 Al(H2O)6Cl3
AgI + Pb(NO3)2 = Ag(NO3) + PbI2 =>
2 AgI + Pb(NO3)2 = 2 Ag(NO3) + PbI2
K2C2O6 = K2CO3 + CO2 + O2 =>
2 K2C2O6 = 2 K2CO3 + 2 CO2 + O2
KClO3 + HI = KCl + I2 + H2O =>
KClO3 + 6 HI = KCl + 3 I2 + 3 H2O
P4O10 = P4 + O2 =>
P4O10 = P4 + 5 O2
Al(OH)3 + CaCO3 = Al2(CO3)3 + Ca(OH)2 =>
2 Al(OH)3 + 3 CaCO3 = Al2(CO3)3 + 3 Ca(OH)2
C14H10O4 + H2O2 = C6H6OH + CO2 =>
18 C14H10O4 + 29 H2O2 = 34 C6H6OH + 48 CO2
I + CuSO4 = ISO4 + Cu =>
I + CuSO4 = ISO4 + Cu
O3 = O2 = BaO = Ba(OH)2 = BaCO3 =>
2 O3 = 3 O2
Pb3O4 + HBr = PbBr2 + PbBr4 + H2O =>
Pb3O4 + 8 HBr = 2 PbBr2 + PbBr4 + 4 H2O
Fe(NO3)2 + NH3 = Fe(NH3)2 + NO3 =>
Fe(NO3)2 + 2 NH3 = Fe(NH3)2 + 2 NO3
PbSO4 + NH4OAc = Pb(OAc)2 + (NH4)2SO4 =>
PbSO4 + 2 NH4OAc = Pb(OAc)2 + (NH4)2SO4
Fe + HNO2 = Fe(NO2)2 + H2 =>
Fe + 2 HNO2 = Fe(NO2)2 + H2
Al2(SO4)3 + NaOH + H2O = Na[Al(OH)4] + H2SO4 =>
Al2(SO4)3 + 2 NaOH + 6 H2O = 2 Na[Al(OH)4] + 3 H2SO4
Mg3P2 + HNO3 = H3PO4 + Mg(NO3)2 + NO2 + H2O =>
Mg3P2 + 22 HNO3 = 2 H3PO4 + 3 Mg(NO3)2 + 16 NO2 + 8 H2O
Ag(s) + CuSO4(aq) = Cu(s) + AgSO4(s) =>
Ag(s) + CuSO4(aq) = Cu(s) + AgSO4(s)
K4(Fe(CN)6) + H2SO4 + H2O2 = K2(SO4) + K3(Fe(CN)6) + H2O =>
2 K4(Fe(CN)6) + H2SO4 + H2O2 = K2(SO4) + 2 K3(Fe(CN)6) + 2 H2O
HBr + K2CO3 = Br2CO3 + HK =>
2 HBr + K2CO3 = Br2CO3 + 2 HK
Fe + NH3 + H2O = Fe(OH)3 + NH4 =>
Fe + 3 NH3 + 3 H2O = Fe(OH)3 + 3 NH4
HC + O = OC + HO =>
HC + 2 O = OC + HO
NO2 + KI = NO + I + KNO3 =>
2 NO2 + KI = NO + I + KNO3
KMnO4 + (NH4)2SO4 = K2SO4 + NH4MnO4 =>
2 KMnO4 + (NH4)2SO4 = K2SO4 + 2 NH4MnO4
AgNO3 + CaCl2 = AgCl + Ca(NO3)2 =>
2 AgNO3 + CaCl2 = 2 AgCl + Ca(NO3)2
TlNO3 = Tl + NO3 =>
TlNO3 = Tl + NO3
NaOH + SO3 = NaHSO4 =>
NaOH + SO3 = NaHSO4
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