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K2S + Cu(OH)2 = 2 KOH + CuS
Mg + I3{-} = Mg{2+} + I{-} =>
Mg + I3{-} = Mg{2+} + 3 I{-}
B2 + Br6 + HNO3 = BN3O9 + HBr =>
B2 + Br6 + 6 HNO3 = 2 BN3O9 + 6 HBr
CaCO3 + Mg{2+} = CaMg(CO3)2 + Ca{2+} =>
2 CaCO3 + Mg{2+} = CaMg(CO3)2 + Ca{2+}
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Kr + F2 = KrF4 =>
Kr + 2 F2 = KrF4
S + Mg3N2 = MgS + N2 =>
3 S + Mg3N2 = 3 MgS + N2
Zn(OH)2 + NH4OH = H2O + [Zn(NH3)4](OH)2 =>
Zn(OH)2 + 4 NH4OH = 4 H2O + [Zn(NH3)4](OH)2
(CH3)(g) + O2(g) = CO2(g) + H20(l) =>
20(CH3)(g) + 20 O2(g) = 20 CO2(g) + 3 H20(l)
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Fe(OH)3 + N2O3 = Fe(NO2)3 + H2O =>
2 Fe(OH)3 + 3 N2O3 = 2 Fe(NO2)3 + 3 H2O
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
CO2 + CH4 = CH3CH2OH =>
CO2 + 3 CH4 = 2 CH3CH2OH
K2SO4 + K2S = K2SO3 =>
3 K2SO4 + K2S = 4 K2SO3
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
As4O6 + OH{-} = AsO2{-} + H2O =>
As4O6 + 4 OH{-} = 4 AsO2{-} + 2 H2O
HgNO3(aq) + KCl(aq) = Hg2Cl2(s) + KNO3(aq) =>
2 HgNO3(aq) + 2 KCl(aq) = Hg2Cl2(s) + 2 KNO3(aq)
Ba(OH)2 + Na2HPO4 = Ba3(PO4)2 + Na(OH) + H2O =>
3 Ba(OH)2 + 2 Na2HPO4 = Ba3(PO4)2 + 4 Na(OH) + 2 H2O
NH4Cl + NaCl = NH3 + NaHCl + Cl =>
NH4Cl + NaCl = NH3 + NaHCl + Cl
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
N2Cl4(g) + CH4(g) = CCl4(g) + H2(g) + N2(g) =>
N2Cl4(g) + CH4(g) = CCl4(g) + 2 H2(g) + N2(g)
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
FeS2 = Fe3S4 + S2 =>
3 FeS2 = Fe3S4 + S2
Hg + HCl + HNO3 = HgCl2 + H2O + NO =>
3 Hg + 6 HCl + 2 HNO3 = 3 HgCl2 + 4 H2O + 2 NO
Pb(NO3)2 + NH4Cl = NH4NO3 + PbCl2 =>
Pb(NO3)2 + 2 NH4Cl = 2 NH4NO3 + PbCl2
Fe2O3 + MgCl2 = FeCl3 + Mg2O2 =>
2 Fe2O3 + 6 MgCl2 = 4 FeCl3 + 3 Mg2O2
Cl2 + NaBr = NaCl + Br2 =>
Cl2 + 2 NaBr = 2 NaCl + Br2
C6H12O6 + KNO3 = KNO2 + CO2 + H2O =>
C6H12O6 + 12 KNO3 = 12 KNO2 + 6 CO2 + 6 H2O
FeS + HCl = FeCl2 + H2S = =>
FeS + 2 HCl = FeCl2 + H2S
FeCO3 = Fe2O3 + CO + CO2 =>
2 FeCO3 = Fe2O3 + CO + CO2
Pb + HNO3 = PbNO3 + H2O + N2 =>
10 Pb + 12 HNO3 = 10 PbNO3 + 6 H2O + N2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
NaSO3 + KSO4 = KSO3 + NaSO4 =>
NaSO3 + KSO4 = KSO3 + NaSO4
NaSO4 + KCrO4 = NaCrO4 + KSO4 =>
NaSO4 + KCrO4 = NaCrO4 + KSO4
PCl3 + H2O = H2PHO3 + HCl =>
PCl3 + 3 H2O = H2PHO3 + 3 HCl
C + Cl2 = CCl4 =>
C + 2 Cl2 = CCl4
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
CaCl2 + Na3PO4 = Ca3(PO4)2 + NaCl =>
3 CaCl2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaCl
K2ZnO2 + HCl = KCl + Zn(OH)2 =>
K2ZnO2 + 2 HCl = 2 KCl + Zn(OH)2
HCl(aq) + CaCO3(s) = CO2(g) + CaCl2(aq) + H2O(l) =>
2 HCl(aq) + CaCO3(s) = CO2(g) + CaCl2(aq) + H2O(l)
HC = CH = X1 = ALCL3 = X2 = X3 =>
HC = CH
Mg(HCO3)2 + HNO3 = Mg(NO3)2 + CO2 + H2O =>
Mg(HCO3)2 + 2 HNO3 = Mg(NO3)2 + 2 CO2 + 2 H2O
PbO2 + HCl = PbCl2 + Cl2 + H2O =>
PbO2 + 4 HCl = PbCl2 + Cl2 + 2 H2O
Zn + HCI = ZnCI + H2 =>
2 Zn + 2 HCI = 2 ZnCI + H2
N + O = N3O5 =>
3 N + 5 O = N3O5
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
NO2 + O2 + H2O = HNO3 =>
4 NO2 + O2 + 2 H2O = 4 HNO3
Al + Pb(NO3)2 = Al(NO3)3 + Pb =>
2 Al + 3 Pb(NO3)2 = 2 Al(NO3)3 + 3 Pb
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