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2 Fe2S3(s) + 9 O2(g) = 2 Fe2O3 + 6 SO2
CaO + SO3 = CaSO4 =>
CaO + SO3 = CaSO4
HCl + S = HS + Cl =>
HCl + S = HS + Cl
CH(g) + O2(g) = CO2(g) + H2O(l) =>
4 CH(g) + 5 O2(g) = 4 CO2(g) + 2 H2O(l)
C5H10O2 + C5H12O = C10H20O2 + H2O =>
C5H10O2 + C5H12O = C10H20O2 + H2O
CH3OH + CH3COOH = CH3COOCH3 + H2O =>
CH3OH + CH3COOH = CH3COOCH3 + H2O
Zn(OH)2 + NH3 = [Zn(NH3)4](OH)2 =>
Zn(OH)2 + 4 NH3 = [Zn(NH3)4](OH)2
Cu(s) + H2O = Cu2O + H2 =>
2 Cu(s) + H2O = Cu2O + H2
PbO + Na2S = PbS + Na2O =>
PbO + Na2S = PbS + Na2O
XeF4 + KBrO3 + H2O = Xe + HF + KBrO4 =>
XeF4 + 2 KBrO3 + 2 H2O = Xe + 4 HF + 2 KBrO4
Cl2 + NaBr = NaCl + Br2 =>
Cl2 + 2 NaBr = 2 NaCl + Br2
C2H7N + HCl = C2H7NCl + H2 =>
2 C2H7N + 2 HCl = 2 C2H7NCl + H2
Al(OH)3 + SiO2 = Al4(SiO4)3 + H2O =>
4 Al(OH)3 + 3 SiO2 = Al4(SiO4)3 + 6 H2O
C4H8N8O8 = CO2 + C + H2O + N2 =>
C4H8N8O8 = 2 CO2 + 2 C + 4 H2O + 4 N2
Zn(OH)2 + NH3 = Zn(NH3)4{+2} + OH{-} =>
Zn(OH)2 + 4 NH3 = Zn(NH3)4{+2} + 2 OH{-}
CU{2+} + H2PO2{-} + OH{-} = CUH2 + PO4{3-} + H2O =>
CU{2+} + H2PO2{-} + 4 OH{-} = CUH2 + PO4{3-} + 2 H2O
Zn(OH)2 + Na = Na(OH) + Zn =>
Zn(OH)2 + 2 Na = 2 Na(OH) + Zn
Pb + CH3COOH = PbCH3COO + H2 =>
2 Pb + 2 CH3COOH = 2 PbCH3COO + H2
NaNO3 + H2SO4 = HNO3 + NaHSO4 =>
NaNO3 + H2SO4 = HNO3 + NaHSO4
CaCl2(aq) + Na2S(aq) = CaS + NaCl =>
CaCl2(aq) + Na2S(aq) = CaS + 2 NaCl
H3O{+} + CaCO3 = Ca{2+} + H2O + H2CO3 =>
2 H3O{+} + CaCO3 = Ca{2+} + 2 H2O + H2CO3
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
MgCl2MgO = Mg2Cl2O =>
MgCl2MgO = Mg2Cl2O
Cr2(SO4)3 + H2O = CrSO4 + H2SO4 + O2 =>
2 Cr2(SO4)3 + 2 H2O = 4 CrSO4 + 2 H2SO4 + O2
Sn + NaOH + H2O = Na2(Sn(OH)4) + H2 =>
Sn + 2 NaOH + 2 H2O = Na2(Sn(OH)4) + H2
Li2O + H2O = Li(OH) =>
Li2O + H2O = 2 Li(OH)
C4H8N8O8 = CO + H2O + N2 =>
C4H8N8O8 = 4 CO + 4 H2O + 4 N2
FeNO + NaOH = FeOH + NaNO =>
FeNO + NaOH = FeOH + NaNO
[Pb(OH)4]{-2} + CrO4{-2} + H{+} = PbCrO4 + H2O =>
[Pb(OH)4]{-2} + CrO4{-2} + 4 H{+} = PbCrO4 + 4 H2O
C6H5OH + Br2 = C6H5OHBr2 =>
C6H5OH + Br2 = C6H5OHBr2
K2Cr2O7 + Na2S + H2O = KCrO2 + NaOH + S =>
K2Cr2O7 + 3 Na2S + 3 H2O = 2 KCrO2 + 6 NaOH + 3 S
CuCO3 + HCl = CuCl2 + H2O + CO2 =>
CuCO3 + 2 HCl = CuCl2 + H2O + CO2
C5 + O2 = CO =>
2 C5 + 5 O2 = 10 CO
Au + H2SO4 = Au2(SO4)3 + H2 =>
2 Au + 3 H2SO4 = Au2(SO4)3 + 3 H2
CaSO3 + H2O = Ca(OH)2 + Ca(HSO3)2 =>
2 CaSO3 + 2 H2O = Ca(OH)2 + Ca(HSO3)2
Fe(HNO3)3 + KSCN = Fe(SCN)3 + KHNO3 =>
Fe(HNO3)3 + 3 KSCN = Fe(SCN)3 + 3 KHNO3
AgCl + NaOH = Ag + H2O + NaCl + O2 =>
4 AgCl + 4 NaOH = 4 Ag + 2 H2O + 4 NaCl + O2
CaO + Br2 = CaBr2 + O2 =>
2 CaO + 2 Br2 = 2 CaBr2 + O2
S + HNO3 = H2SO4 + NO2 + H2O =>
S + 6 HNO3 = H2SO4 + 6 NO2 + 2 H2O
N + O = N2O =>
2 N + O = N2O
CuCl2 + NaHCO3 = (CuOH)2CO3 + NaCl + CO2 + H2O =>
2 CuCl2 + 4 NaHCO3 = (CuOH)2CO3 + 4 NaCl + 3 CO2 + H2O
Cu + CO2 = CuO + CO =>
Cu + CO2 = CuO + CO
NO2{-} + Al + OH{-} + H2O = NH3 + AlO2{-} =>
NO2{-} + 2 Al + OH{-} + H2O = NH3 + 2 AlO2{-}
CuSO4 + H2SO4 = Cu(SO4)2 + H2 =>
CuSO4 + H2SO4 = Cu(SO4)2 + H2
K2S + BaBr2 = KBr + BaS =>
K2S + BaBr2 = 2 KBr + BaS
Sr(OH)2 + Fe2(SO4)3 = Sr(SO4) + Fe(OH)3 =>
3 Sr(OH)2 + Fe2(SO4)3 = 3 Sr(SO4) + 2 Fe(OH)3
F2 + AgBr = Ag2F + Br2 =>
F2 + 4 AgBr = 2 Ag2F + 2 Br2
HNO2 + KI = H2O + I2 + KNO3 + NO =>
8 HNO2 + 2 KI = 4 H2O + I2 + 2 KNO3 + 6 NO
HNO3 + Na2SO3 = H2O + SO2 + NaNO3 =>
2 HNO3 + Na2SO3 = H2O + SO2 + 2 NaNO3
MoO3 + Zn + H2SO4 = Mo3O3 + ZnSO4 + H2O =>
3 MoO3 + 6 Zn + 6 H2SO4 = Mo3O3 + 6 ZnSO4 + 6 H2O
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