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PbS2 + 2 Ca(OH)2 = Pb(OH)4 + 2 CaS
K2Cr2O7 + NaCl + H2SO4 = Cl2 + CrCl3 + H2O + K2SO4 + Na2SO4 =>
K2Cr2O7 + 12 NaCl + 7 H2SO4 = 3 Cl2 + 2 CrCl3 + 7 H2O + K2SO4 + 6 Na2SO4
CO3{2-} + Hg{2+} + H2O = H2CO3 + Hg(OH)2 =>
CO3{2-} + Hg{2+} + 2 H2O = H2CO3 + Hg(OH)2
H2S + HOH = H2 + SO2 =>
H2S + 2 HOH = 3 H2 + SO2
H2SO4 + Zn + VOSO4 = VSO4 + ZnSO4 + H2O =>
H2SO4 + Zn + VOSO4 = VSO4 + ZnSO4 + H2O
BaCl2(aq) + ZnSO4(aq) = ZnCl2(aq) + BaSO4(s) =>
BaCl2(aq) + ZnSO4(aq) = ZnCl2(aq) + BaSO4(s)
C2H3COONa + AgNO3 + NH3 + H2O = Ag + Na2CO3 + (NH4)2CO3 =>
6 C2H3COONa + 8 AgNO3 + 22 NH3 + 18 H2O = 8 Ag + 3 Na2CO3 + 15(NH4)2CO3
lead(ii)sulfide + oxygen = lead(ii)oxide + sulfurdioxide =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
PbS(s) + PbSO4(s) = Pb(s) + SO2(g) =>
PbS(s) + PbSO4(s) = 2 Pb(s) + 2 SO2(g)
CH3CO2HAgNO3 = AgCH3CO2HNO3 =>
CH3CO2HAgNO3 = AgCH3CO2HNO3
CH2CHC6H4SO3H + NaOH = CH2CHC6H4SO3Na + H2O =>
CH2CHC6H4SO3H + NaOH = CH2CHC6H4SO3Na + H2O
CH3CO2HNH3 = NH4CH3CO2 =>
CH3CO2HNH3 = NH4CH3CO2
Mn{2+} + IO4{-} + H2O = MnO4{-} + IO3{-} + H{+} =>
2 Mn{2+} + 5 IO4{-} + 3 H2O = 2 MnO4{-} + 5 IO3{-} + 6 H{+}
Zn + NaOH = Zn(NaO) + H =>
Zn + NaOH = Zn(NaO) + H
CaO + AgClO3 = Ca(ClO3)2 + Ag2O =>
CaO + 2 AgClO3 = Ca(ClO3)2 + Ag2O
Na2SiO3 + CuCl2 = CuSiO3 + NaCl =>
Na2SiO3 + CuCl2 = CuSiO3 + 2 NaCl
(C7H6O) + C3H6O = C17H14O + (H2O) =>
2(C7H6O) + C3H6O = C17H14O + 2(H2O)
(NH4)2SO4 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + N2 + K2SO4 + H2O =>
(NH4)2SO4 + K2Cr2O7 + 3 H2SO4 = Cr2(SO4)3 + N2 + K2SO4 + 7 H2O
CH4N2O + CH3OH = C3H6O3 + NH3 =>
CH4N2O + 2 CH3OH = C3H6O3 + 2 NH3
Na2SeO3 + Zn + HCl = NaCl + ZnCl2 + H2O + Se =>
Na2SeO3 + 2 Zn + 6 HCl = 2 NaCl + 2 ZnCl2 + 3 H2O + Se
ClO3{-} + H = Cl{-} + H2O =>
ClO3{-} + 6 H = Cl{-} + 3 H2O
Fe{+2} + P{-3} = Fe3P2 =>
3 Fe{+2} + 2 P{-3} = Fe3P2
C2H2 + H2O = CO2 + H4 =>
2 C2H2 + 8 H2O = 4 CO2 + 5 H4
Zn + Cu = ZnCu =>
Zn + Cu = ZnCu
bariumnitrate + aluminiumsulfate = aluminiumnitrate + bariumsulfate =>
3 Ba(NO3)2 + Al2(SO4)3 = 2 Al(NO3)3 + 3 BaSO4
Na2HPO4 + Ca(NO3)2 = CaHPO4 + Na(NO3) =>
Na2HPO4 + Ca(NO3)2 = CaHPO4 + 2 Na(NO3)
Cl + HgO = HgCl2 + Cl2O =>
4 Cl + HgO = HgCl2 + Cl2O
X2O5 + H2O = H3XO4 =>
X2O5 + 3 H2O = 2 H3XO4
Na3[Co(CN)6] + FeSO4 = Fe3[Co(CN)6]2 + Na2SO4 =>
2 Na3[Co(CN)6] + 3 FeSO4 = Fe3[Co(CN)6]2 + 3 Na2SO4
C10H20O + Cr2O7 = C10H18O + Cr + H2O =>
7 C10H20O + Cr2O7 = 7 C10H18O + 2 Cr + 7 H2O
MgS + CuSO4 = MgCu + SO4S =>
MgS + CuSO4 = MgCu + SO4S
(Ba(OH)2) = Ba2 + OH =>
2(Ba(OH)2) = Ba2 + 4 OH
HCl + ZnCO3 = ZnCl2 + H2O + CO2 =>
2 HCl + ZnCO3 = ZnCl2 + H2O + CO2
Mg(s) + Ni(NO3)2(aq) = Mg(NO3)2 + Ni =>
Mg(s) + Ni(NO3)2(aq) = Mg(NO3)2 + Ni
Zn + Pb(NO3)2 = Zn(NO3)2 + Pb =>
Zn + Pb(NO3)2 = Zn(NO3)2 + Pb
CH3COOHCH3CHCH3CH2CH2OH = CH3COOCH2CH2CHCH3CH3H2O =>
CH3COOHCH3CHCH3CH2CH2OH = CH3COOCH2CH2CHCH3CH3H2O
Mn + Al2O3 = MnO2 + Al =>
3 Mn + 2 Al2O3 = 3 MnO2 + 4 Al
H2NC(CH2OH)3 + HClO4 = H2NC(O4)3 + HClCH2OH =>
H2NC(CH2OH)3 + 3 HClO4 = H2NC(O4)3 + 3 HClCH2OH
Hg2(NO3)2 + Cu = Hg + Cu(NO3)2 =>
Hg2(NO3)2 + Cu = 2 Hg + Cu(NO3)2
Al + NO3{-} + OH{-} + H2O = NH3 + Al(OH)4{-} =>
8 Al + 3 NO3{-} + 5 OH{-} + 18 H2O = 3 NH3 + 8 Al(OH)4{-}
Al + Cd2Si = Cd + Al4Si3 =>
4 Al + 3 Cd2Si = 6 Cd + Al4Si3
N3H4ClH8 + NO2ClO4 = N2 + Cl2 + H2O =>
N3H4ClH8 + NO2ClO4 = 2 N2 + Cl2 + 6 H2O
OCu + NH3 = N2 + Cu + H2O =>
3 OCu + 2 NH3 = N2 + 3 Cu + 3 H2O
PbCO3 = CO2 + PbO =>
PbCO3 = CO2 + PbO
C4(s)H8(s)O(s)2 + O(s)2 = CO(s)2 + H(s)20 =>
5 C4(s)H8(s)O(s)2 + 15 O(s)2 = 20 CO(s)2 + 2 H(s)20
Co2 + Ca(OH)2 = CaCo3 + OH =>
3 Co2 + 2 Ca(OH)2 = 2 CaCo3 + 4 OH
CH3COOHKHCO3 = KCH3COOH2OCO2 =>
CH3COOHKHCO3 = KCH3COOH2OCO2
Zn(NO3)2 + OH + NH3 = Zn(OH)2 + NH4NO3 =>
5 Zn(NO3)2 + 16 OH + 14 NH3 = 5 Zn(OH)2 + 12 NH4NO3
Al2(SO4)3(aq) + K2SO4(aq) + H2O = KAl(SO4)2*12H2O(s) =>
Al2(SO4)3(aq) + K2SO4(aq) + 24 H2O = 2 KAl(SO4)2*12H2O(s)
As2O3 + NaOH + H2O = Na[As(OH)4] =>
As2O3 + 2 NaOH + 3 H2O = 2 Na[As(OH)4]
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