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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Al2(SO4)3(aq) + SrBr2(aq) = AlBr3(aq) + SrSO4(s) =>
Al2(SO4)3(aq) + 3 SrBr2(aq) = 2 AlBr3(aq) + 3 SrSO4(s)
CH3CCH3 + KMnO4 + H2SO4 = CH3COOH + MnSO4 + K2SO4 + H2O =>
10 CH3CCH3 + 12 KMnO4 + 18 H2SO4 = 15 CH3COOH + 12 MnSO4 + 6 K2SO4 + 18 H2O
KMn(O)4 + HCl = KCl + Mn(Cl)2 + (H)2O + (Cl)2 =>
2 KMn(O)4 + 16 HCl = 2 KCl + 2 Mn(Cl)2 + 8(H)2O + 5(Cl)2
SO2 + O2 + H2O = H2SO4 =>
2 SO2 + O2 + 2 H2O = 2 H2SO4
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
ZnCl2 + H3(PO4) = Zn3(PO4)2 + HCl =>
3 ZnCl2 + 2 H3(PO4) = Zn3(PO4)2 + 6 HCl
Hg(NO3)2 + NH4SCN = Hg(SCN)2 + NH4NO3 =>
Hg(NO3)2 + 2 NH4SCN = Hg(SCN)2 + 2 NH4NO3
PBr3 + F2 = Br2 + PF3 =>
2 PBr3 + 3 F2 = 3 Br2 + 2 PF3
PH3 + AgNO3 = Ag3P + HNO3 =>
PH3 + 3 AgNO3 = Ag3P + 3 HNO3
Ca + Al(NO3)3 = Ca(NO3)2 + Al =>
3 Ca + 2 Al(NO3)3 = 3 Ca(NO3)2 + 2 Al
MnSO4 = MnO + SO3 =>
MnSO4 = MnO + SO3
PtCl4 + Br2 = PtBr4 + Cl2 =>
PtCl4 + 2 Br2 = PtBr4 + 2 Cl2
ClO4{-} + SO3{2-} = SO4{2-} + Cl{-} =>
ClO4{-} + 4 SO3{2-} = 4 SO4{2-} + Cl{-}
Fe(OH)3 + Cl + H = FeCl2 + H2O =>
Fe(OH)3 + 2 Cl + 3 H = FeCl2 + 3 H2O
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
Ni3P2 + Li6S = Ni3S + Li3P =>
Ni3P2 + Li6S = Ni3S + 2 Li3P
C2H5OH + CH3CO2H = CH3CO2C2H5 + H2O =>
C2H5OH + CH3CO2H = CH3CO2C2H5 + H2O
Na2SO4 + BaCl2 = BaSO4 + NaCl =>
Na2SO4 + BaCl2 = BaSO4 + 2 NaCl
Ca{2+} + [O]{2-} = CaO =>
Ca{2+} + [O]{2-} = CaO
C4H10O + O2 = CO2 + H2O =>
C4H10O + 6 O2 = 4 CO2 + 5 H2O
NO3{-}(aq) + OH{-}(aq) + Zn(s) + H2O(l) = [Zn(OH)4]{2-}(aq) + NH3(g) =>
NO3{-}(aq) + 7 OH{-}(aq) + 4 Zn(s) + 6 H2O(l) = 4[Zn(OH)4]{2-}(aq) + NH3(g)
KAlSi3O8 + H = KAl2(AlSi3O10)(OH)2 + SiO2 + K =>
3 KAlSi3O8 + 2 H = KAl2(AlSi3O10)(OH)2 + 6 SiO2 + 2 K
Cl2(g) + SiO2(s) + C(s) = SiCl4(l) + CO(g) =>
2 Cl2(g) + SiO2(s) + 2 C(s) = SiCl4(l) + 2 CO(g)
K(OH) + H3P04 = K3P04 + H2O =>
3 K(OH) + H3P04 = K3P04 + 3 H2O
Ca(IO3)2 + H2O = Ca(OH)2 + HI + O2 =>
Ca(IO3)2 + 2 H2O = Ca(OH)2 + 2 HI + 3 O2
Al(OH)3 + Cr2O3 = Al2O3 + Cr(OH)3 =>
2 Al(OH)3 + Cr2O3 = Al2O3 + 2 Cr(OH)3
Mg(s) + Cr{2+}(aq) = Mg{2+}(aq) + Cr(s) =>
Mg(s) + Cr{2+}(aq) = Mg{2+}(aq) + Cr(s)
Mg + Cu2CO3 = MgCO3 + Cu =>
Mg + Cu2CO3 = MgCO3 + 2 Cu
C4H10O + Cr2O7{-} + H{+} = C4H8O + Cr{3+} + H2O =>
7 C4H10O + 2 Cr2O7{-} + 14 H{+} = 7 C4H8O + 4 Cr{3+} + 14 H2O
C56H110O6 + O2 = CO2 + H2O =>
2 C56H110O6 + 161 O2 = 112 CO2 + 110 H2O
C3H8O3 + Na = C3H5O3Na3 + H2 =>
2 C3H8O3 + 6 Na = 2 C3H5O3Na3 + 3 H2
Fe + Cu3N2 = FeN + Cu =>
2 Fe + Cu3N2 = 2 FeN + 3 Cu
BI3 + NH3 = B2(NH)3 + NH4I =>
2 BI3 + 9 NH3 = B2(NH)3 + 6 NH4I
Fe(SO4)3 + BaCl = FeCl3 + BaSO4 =>
Fe(SO4)3 + 3 BaCl = FeCl3 + 3 BaSO4
C2H3O + O2 = CO2 + H2O =>
4 C2H3O + 9 O2 = 8 CO2 + 6 H2O
K2O + Cu(NO3)2 = KNO3 + CuO =>
K2O + Cu(NO3)2 = 2 KNO3 + CuO
KMnO4 + KI = K2MnO4 + I2 =>
2 KMnO4 + 2 KI = 2 K2MnO4 + I2
CH2 + O2 = CO2 + H2O =>
2 CH2 + 3 O2 = 2 CO2 + 2 H2O
Al(CO3)3(s) = AlO3(s) + CO2(g) =>
Al(CO3)3(s) = AlO3(s) + 3 CO2(g)
ZnSO4*7H2O + Na2Co3 = ZnCo3 + Na2SO4 + H2O =>
ZnSO4*7H2O + Na2Co3 = ZnCo3 + Na2SO4 + 7 H2O
K + Cr(NO3)3 = K(NO3)3 + Cr =>
K + Cr(NO3)3 = K(NO3)3 + Cr
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
Fe + Cl(g) = FeCl2 =>
Fe + 2 Cl(g) = FeCl2
Na2SO3 + S = Na2S + SO2 =>
2 Na2SO3 + 3 S = 2 Na2S + 3 SO2
KClO3(heat) = KClO + O2 =>
KClO3(heat) = KClO + O2
Mn{2+} + Cu = Mn + Cu{2+} =>
Mn{2+} + Cu = Mn + Cu{2+}
MnSO4 = MnO + SO3 =>
MnSO4 = MnO + SO3
Al(s) + Pb{2+} = Al{2+} + Pb(s) =>
Al(s) + Pb{2+} = Al{2+} + Pb(s)
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
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