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2 PbCO3 + 3 S = 2 PbS + SO2 + 2 CO2
HNO3 + HI = NO + I2 + H3O =>
2 HNO3 + 10 HI = 2 NO + 5 I2 + 4 H3O
CH3COOH + Cr(OH)3 = Cr(CH3COO)3 + H2O =>
3 CH3COOH + Cr(OH)3 = Cr(CH3COO)3 + 3 H2O
HgS = Hg + S =>
HgS = Hg + S
K2Cr2O7 + H2SO4 = Cr2(SO)3 + K2SO4 + O2 + H2O =>
K2Cr2O7 + 4 H2SO4 = Cr2(SO)3 + K2SO4 + 6 O2 + 4 H2O
CH3COOH + KMnO4 + H2SO4 = CO2 + H2O + K2SO4 + MnSO4 =>
5 CH3COOH + 8 KMnO4 + 12 H2SO4 = 10 CO2 + 22 H2O + 4 K2SO4 + 8 MnSO4
HCHO + HOC2H5 = HCOOC2H5 + H2O =>
4 HCHO + HOC2H5 = 2 HCOOC2H5 + H2O
Sodium + calciumhydroxide = sodiumhydroxide + calcium =>
2 Na + Ca(OH)2 = 2 NaOH + Ca
Cu(OH)2 = CuO + H2O(g) =>
Cu(OH)2 = CuO + H2O(g)
NH4NO3 + CaCl2 = CaNO3 + Cl2NH4 =>
NH4NO3 + CaCl2 = CaNO3 + Cl2NH4
C(H)4 + (O)2 = C(O)2 + (H)2O =>
C(H)4 + 2(O)2 = C(O)2 + 2(H)2O
K(OH) + HIO3 = H2O + KIO3 =>
K(OH) + HIO3 = H2O + KIO3
P2 + H2O = PH3 + PO =>
5 P2 + 6 H2O = 4 PH3 + 6 PO
CaCl2 = Ca + Cl =>
CaCl2 = Ca + 2 Cl
(CH3O)2O + CH2COC2H5 = C2H5COCH2COC2H5 + C2H5HO =>
3(CH3O)2O + 36 CH2COC2H5 = 20 C2H5COCH2COC2H5 + 5 C2H5HO
MnO4{-} + I{-} + H{+} = Mn2{+} + I2 + H2O =>
4 MnO4{-} + 26 I{-} + 32 H{+} = 2 Mn2{+} + 13 I2 + 16 H2O
IO + H2O2 = H2O + IO2 =>
IO + H2O2 = H2O + IO2
Mg(OH)2(aq) + HCl(aq) = MgCl2(aq) + H2O(l) =>
Mg(OH)2(aq) + 2 HCl(aq) = MgCl2(aq) + 2 H2O(l)
ZnO + Ba(OH)2 = BaZnO2 + H2O =>
ZnO + Ba(OH)2 = BaZnO2 + H2O
Pb(C2H3O4)2 + NaCl = PbCl + Na(C2H3O4)2 =>
Pb(C2H3O4)2 + NaCl = PbCl + Na(C2H3O4)2
C2H5OH + KMnO4 = CH3COOH + MnO2 + KOH + H2O =>
3 C2H5OH + 4 KMnO4 = 3 CH3COOH + 4 MnO2 + 4 KOH + H2O
SnCl2(ac) + HNO3(ac) + HCl(l) = SnCl4(g) + N2O(ac) + H2O(l) =>
4 SnCl2(ac) + 2 HNO3(ac) + 8 HCl(l) = 4 SnCl4(g) + N2O(ac) + 5 H2O(l)
FeO + H3PO4 = Fe3(PO4)2 + (H2O) =>
3 FeO + 2 H3PO4 = Fe3(PO4)2 + 3(H2O)
Ca(OH)2 + Al(OH)3 = Ca3Al2(OH)12 =>
3 Ca(OH)2 + 2 Al(OH)3 = Ca3Al2(OH)12
Fe(NO3)3 + NH3 = Fe(NH3) + NO3 =>
Fe(NO3)3 + NH3 = Fe(NH3) + 3 NO3
KHO + CuSO4 = Cu(OH)2 + K2SO4 =>
2 KHO + CuSO4 = Cu(OH)2 + K2SO4
CH3CHO + TiCl3 + Zn = CH3CHCHCH3 + TiO2 + ZnCl2 =>
4 CH3CHO + 2 TiCl3 + 3 Zn = 2 CH3CHCHCH3 + 2 TiO2 + 3 ZnCl2
K2CO3 + HI = KI + H2O + CO2 =>
K2CO3 + 2 HI = 2 KI + H2O + CO2
Ca(CO3) + HCl = CaCl2 + H2CO3 =>
Ca(CO3) + 2 HCl = CaCl2 + H2CO3
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq) =>
AgNO3(aq) + NaCl(aq) = AgCl(s) + NaNO3(aq)
KMnO4 + H2O2 = K2O2 + MnO4 + H2 =>
2 KMnO4 + H2O2 = K2O2 + 2 MnO4 + H2
Cd{2+} + HSO3{-} = Cd(HSO3)2 =>
Cd{2+} + 2 HSO3{-} = Cd(HSO3)2
NaBiO3 + MnSO4 + H2SO4 = H2MnO4 + Bi2(SO4)3 + Na2SO4 + H2O =>
2 NaBiO3 + MnSO4 + 3 H2SO4 = H2MnO4 + Bi2(SO4)3 + Na2SO4 + 2 H2O
K2Cr2O7 + H2SO4 + H2O2 = KSO4 + CrO3 + H2O =>
K2Cr2O7 + 2 H2SO4 + H2O2 = 2 KSO4 + 2 CrO3 + 3 H2O
C4H6O(l) + O2(g) = CO2(g) + H2O(l) =>
C4H6O(l) + 5 O2(g) = 4 CO2(g) + 3 H2O(l)
CaCO3(s) + HCl = H2O(l) + CO2(g) + CaCl2 =>
CaCO3(s) + 2 HCl = H2O(l) + CO2(g) + CaCl2
C12H22O11 = C(grafite) + H2O =>
C12H22O11 = 12 C(grafite) + 11 H2O
AlPO4(s) + H3O(aq) = Al(aq) + HPO4 + H2O =>
AlPO4(s) + H3O(aq) = Al(aq) + HPO4 + H2O
H2SO2 + C = H2O + S02 + CO2 =>
2 H2SO2 + C = 2 H2O + S02 + CO2
Cr2O7{2-} + KOH = CrO4{2-} + H2O + K{+} =>
Cr2O7{2-} + 2 KOH = 2 CrO4{2-} + H2O + 2 K{+}
HCl + Cu + NaNO3 = NO2 + CuCl2 + NaCl + H2O =>
4 HCl + Cu + 2 NaNO3 = 2 NO2 + CuCl2 + 2 NaCl + 2 H2O
X(NO3)7 + C12H22O11 = CO2 + H2O + X2(CO3)7 + N2 =>
48 X(NO3)7 + 35 C12H22O11 = 252 CO2 + 385 H2O + 24 X2(CO3)7 + 168 N2
C8H9N2O3SCl + C7H9NO + CH2 = C16H19N3O4S + HCl =>
C8H9N2O3SCl + C7H9NO + CH2 = C16H19N3O4S + HCl
Cu + H2SO4 = Cu2SO4 + H2O + SO2 =>
2 Cu + 2 H2SO4 = Cu2SO4 + 2 H2O + SO2
Fe{+2} + KMn{+7}O4{-8} = Mn{+2} + Fe2{+6}O3{-6} + K =>
10 Fe{+2} + 2 KMn{+7}O4{-8} = 2 Mn{+2} + 5 Fe2{+6}O3{-6} + 2 K
Cu2CO3(OH)2 + H2SO4 = CuSO4 + H2CO3 + H2O =>
Cu2CO3(OH)2 + 2 H2SO4 = 2 CuSO4 + H2CO3 + 2 H2O
CaO + CO = Ca + CaCO3 =>
2 CaO + CO = Ca + CaCO3
[Ni(NH3)6](OH)2 + HCl = NiCl2 + NH4Cl + H2O =>
[Ni(NH3)6](OH)2 + 8 HCl = NiCl2 + 6 NH4Cl + 2 H2O
Ca3N2 + H2O = CaO2H2 + NH3 =>
Ca3N2 + 6 H2O = 3 CaO2H2 + 2 NH3
K2[HgBr4] + KI = K2[HgI4] + KBr =>
K2[HgBr4] + 4 KI = K2[HgI4] + 4 KBr
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