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2 SO3 + (CaO)2 = 2 CaSO4
Po + HCl = PoCl2 + H2 =>
Po + 2 HCl = PoCl2 + H2
K2S(aq) + Pb(NO3)2(aq) = K(NO3) + PbS =>
K2S(aq) + Pb(NO3)2(aq) = 2 K(NO3) + PbS
Sb2O3 + PbO + NaOH = Na3SbO4 + Pb + H2O =>
Sb2O3 + 2 PbO + 6 NaOH = 2 Na3SbO4 + 2 Pb + 3 H2O
HC2H3O2 + Zn = H2 + Zn2C2H3O2 =>
2 HC2H3O2 + 4 Zn = H2 + 2 Zn2C2H3O2
NaF + Pb(NO3)2 = PbF2 + NaNO3 =>
2 NaF + Pb(NO3)2 = PbF2 + 2 NaNO3
N2H8SO4 + CaO + H2O = NH4 + CaSO4 + H2O2 =>
N2H8SO4 + CaO + H2O = 2 NH4 + CaSO4 + H2O2
calciumcarbonate = calcium + oxygen + carbondioxide =>
2 CaCO3 = 2 Ca + O2 + 2 CO2
Hg2Cl2 + NaOH = NaCl + Hg + OH =>
Hg2Cl2 + 2 NaOH = 2 NaCl + 2 Hg + 2 OH
HCl + K4Fe(CN)6 = H4Fe(CN)6 + KCl =>
4 HCl + K4Fe(CN)6 = H4Fe(CN)6 + 4 KCl
I2 + CaCl2 = CaI + Cl2 =>
I2 + 2 CaCl2 = 2 CaI + 2 Cl2
NaCO + HCl = NaCOHCl =>
NaCO + HCl = NaCOHCl
IO4 + H = I + H2O =>
IO4 + 8 H = I + 4 H2O
HI + Na2SO4 = H2SO4 + NaI =>
2 HI + Na2SO4 = H2SO4 + 2 NaI
C2H2Br2 + Br2 = C2H2Br4 =>
C2H2Br2 + Br2 = C2H2Br4
CH3CH2OH + O2 = H2O + (CH3COOH) =>
CH3CH2OH + O2 = H2O + (CH3COOH)
Si + HNO3 = H2SiO3 + NO2 + H2O =>
Si + 4 HNO3 = H2SiO3 + 4 NO2 + H2O
Sn3P4 = Sn + P =>
Sn3P4 = 3 Sn + 4 P
Mg(s) + NaCl(aq) = Na + MgCl2 =>
Mg(s) + 2 NaCl(aq) = 2 Na + MgCl2
LiI + H2(SO4) = Li2SO4 + HI =>
2 LiI + H2(SO4) = Li2SO4 + 2 HI
Fe(s) + O2 + H2O = Fe(OH)2(aq) =>
2 Fe(s) + O2 + 2 H2O = 2 Fe(OH)2(aq)
MgI2(aq) + Mn(SO3)2(aq) = MgSO3(aq) + MnI4(s) =>
2 MgI2(aq) + Mn(SO3)2(aq) = 2 MgSO3(aq) + MnI4(s)
KBr + H2O = KOH + HBr =>
KBr + H2O = KOH + HBr
Al + Al2O3 = Al2O =>
4 Al + Al2O3 = 3 Al2O
NO2 + P = N2 + P2O5 =>
10 NO2 + 8 P = 5 N2 + 4 P2O5
P4 + N2 = PN =>
P4 + 2 N2 = 4 PN
CH3COOH + Al2(CO3)3 = Al(C2H3O2)3 + CO2 + H2O =>
6 CH3COOH + Al2(CO3)3 = 2 Al(C2H3O2)3 + 3 CO2 + 3 H2O
Cu(s) + Br2(l) = CuBr2(s) =>
Cu(s) + Br2(l) = CuBr2(s)
Cd + CuCl2 = CdCl2 + Cu =>
Cd + CuCl2 = CdCl2 + Cu
NaOH + H2CO = Na2CO + H2O =>
2 NaOH + H2CO = Na2CO + 2 H2O
NaOH(aq) + AlCl3(s) = NaCl(aq) + Al(OH)3(aq) =>
3 NaOH(aq) + AlCl3(s) = 3 NaCl(aq) + Al(OH)3(aq)
Al2(SO4)3 + CH3COONa + H2O = Al(OH)3 + Na2SO4 + CH3COOH =>
Al2(SO4)3 + 6 CH3COONa + 6 H2O = 2 Al(OH)3 + 3 Na2SO4 + 6 CH3COOH
C2H4(l) + O2(g) = CO2(g) + H2O(l) =>
C2H4(l) + 3 O2(g) = 2 CO2(g) + 2 H2O(l)
Bi(NO3)3 + Na2CO3 + H2O = BiCO3(OH) + NaNO3 + CO2 =>
2 Bi(NO3)3 + 3 Na2CO3 + H2O = 2 BiCO3(OH) + 6 NaNO3 + CO2
O3 = O2O2 = ONO + O3 = NO2 + NO2 =>
4 O3 = 3 O2O2
Al2(SO4)3 + CaS = Al2S3 + CaSO4 =>
Al2(SO4)3 + 3 CaS = Al2S3 + 3 CaSO4
H2 + MnO2 = Mn0 + H2O =>
2 H2 + MnO2 = Mn0 + 2 H2O
NH4OH + I = NH4I + OH =>
NH4OH + I = NH4I + OH
As2O4 + HNO3 + H2O = H3AsO4 + NO =>
3 As2O4 + 2 HNO3 + 8 H2O = 6 H3AsO4 + 2 NO
HC2H3O2(aq) + KOH(aq) = KC2H3O2(s) + H2O(l) =>
HC2H3O2(aq) + KOH(aq) = KC2H3O2(s) + H2O(l)
CuCl2 + NH3 = Cu(NH3)4 + Cl =>
CuCl2 + 4 NH3 = Cu(NH3)4 + 2 Cl
[Co(C5H6O4)](C12H8N2) + O2 = N2 + H2O + CO2 + Co3O4 =>
6[Co(C5H6O4)](C12H8N2) + 115 O2 = 6 N2 + 42 H2O + 102 CO2 + 2 Co3O4
C5H11COOH + O2 = C + H2O =>
C5H11COOH + 2 O2 = 6 C + 6 H2O
Al + PbF4 = Pb4 + AlF3 =>
16 Al + 12 PbF4 = 3 Pb4 + 16 AlF3
CH3CO2H = CH3 + CO2 + H =>
CH3CO2H = CH3 + CO2 + H
Al2(SO4)3 + Na3(PO4) = AlPO4 + Na2(SO4) =>
Al2(SO4)3 + 2 Na3(PO4) = 2 AlPO4 + 3 Na2(SO4)
CaSO4 + LiF = CaF2 + Li2SO4 =>
CaSO4 + 2 LiF = CaF2 + Li2SO4
Mn2O3 + C = Mn + CO =>
Mn2O3 + 3 C = 2 Mn + 3 CO
BaCl2 + (NH4)2HPO4 = Ba(H2PO4)2 + NH3 + HCl =>
BaCl2 + 2(NH4)2HPO4 = Ba(H2PO4)2 + 4 NH3 + 2 HCl
Pb(IO3)2 + NaOH = Pb(OH)2 + Na(IO3) =>
Pb(IO3)2 + 2 NaOH = Pb(OH)2 + 2 Na(IO3)
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