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PbO2 + 2 H2SO4 = 2 H2O + PbSO4 + SO4
*2P + *5O2 = *2PO2 =>
5*2P + 2*5O2 = 5*2PO2
C2 + D2 = C3D2 =>
3 C2 + 2 D2 = 2 C3D2
Mg(OH)2 + AgNO3 = Mg(NO3)2 + Ag(OH) =>
Mg(OH)2 + 2 AgNO3 = Mg(NO3)2 + 2 Ag(OH)
S + Br = SBr2 =>
S + 2 Br = SBr2
H2SO3 + Br2 + H2O + BaCl2 = HBr + BaSO4 + HCl =>
H2SO3 + Br2 + H2O + BaCl2 = 2 HBr + BaSO4 + 2 HCl
CaH2O = Ca + H2O =>
CaH2O = Ca + H2O
OH + H2CO3 = H2O + HCO3 =>
OH + H2CO3 = H2O + HCO3
Cu + Ba(OH)2 = Ba + Cu(OH)2 =>
Cu + Ba(OH)2 = Ba + Cu(OH)2
AlBr3 + Na2S = Al2S3 + NaBr =>
2 AlBr3 + 3 Na2S = Al2S3 + 6 NaBr
LiOH(aq) + BaS(aq) = LiS + BaOH =>
LiOH(aq) + BaS(aq) = LiS + BaOH
Ca(H2PO4)2 = Ca3(PO4)2 + P4O10 + H2O =>
3 Ca(H2PO4)2 = Ca3(PO4)2 + P4O10 + 6 H2O
Fe(CN)2 = Fe + CN =>
Fe(CN)2 = Fe + 2 CN
CO2 + CaCO3 = CO2CO3 + Ca =>
CO2 + CaCO3 = CO2CO3 + Ca
NiSO4 + Na3PO4 + H2O = (NiOH)3PO4 + Na2SO4 + H2SO4 =>
6 NiSO4 + 2 Na3PO4 + 6 H2O = 2(NiOH)3PO4 + 3 Na2SO4 + 3 H2SO4
Cd{2+} + S{2-} = CdS =>
Cd{2+} + S{2-} = CdS
Pb + NH3 = Pb(NH3)2 =>
Pb + 2 NH3 = Pb(NH3)2
VO2{+} + OH{-} = VO4{3-} + H2O =>
VO2{+} + 4 OH{-} = VO4{3-} + 2 H2O
HNO3 + Pb = Pb(NO3)2 + N2 + H2O =>
12 HNO3 + 5 Pb = 5 Pb(NO3)2 + N2 + 6 H2O
CHNO + O2 = CO2 + HNO3 =>
CHNO + 2 O2 = CO2 + HNO3
Fe + HCl(conc) = FeCl3 + H2 =>
2 Fe + 6 HCl(conc) = 2 FeCl3 + 3 H2
Br + MgI2 = BrI + Mg =>
2 Br + MgI2 = 2 BrI + Mg
H3O + CO2 = O2 + C4H6 =>
2 H3O + 4 CO2 = 5 O2 + C4H6
HBO3 + HCl = H2O + BO2 + Cl =>
HBO3 + HCl = H2O + BO2 + Cl
P2O5 + NH4OH = (NH4)3PO4 + H2O =>
P2O5 + 6 NH4OH = 2(NH4)3PO4 + 3 H2O
Pb + NH3 = PbN + H =>
Pb + NH3 = PbN + 3 H
C6H5COO + H3O = H2O + C6H5COOH =>
C6H5COO + H3O = H2O + C6H5COOH
NaOCl + Na2S2O3 + NaOH = NaCl + (Na)2SO4 + H2O =>
4 NaOCl + Na2S2O3 + 2 NaOH = 4 NaCl + 2(Na)2SO4 + H2O
BaO + NO2 = Ba(NO3)2 + NO =>
BaO + 3 NO2 = Ba(NO3)2 + NO
H3O + CO2 = CH4 + O2 =>
4 H3O + 3 CO2 = 3 CH4 + 5 O2
MgBr2 + H2O = Mg(OH)2 + HBr =>
MgBr2 + 2 H2O = Mg(OH)2 + 2 HBr
Al + HNO = AlNO + H2 =>
2 Al + 2 HNO = 2 AlNO + H2
CH3OH + O2 = CH2O + H2O = =>
2 CH3OH + O2 = 2 CH2O + 2 H2O
CaS(aq) + HCl(aq) = CaCl2(aq) + H2S(g) =>
CaS(aq) + 2 HCl(aq) = CaCl2(aq) + H2S(g)
Au + CN = AuCN =>
Au + CN = AuCN
Fe2SiO4 = SiO2 + Fe + O2 =>
Fe2SiO4 = SiO2 + 2 Fe + O2
Al2(SO4)3 + K3N = K2SO4 + AlN =>
Al2(SO4)3 + 2 K3N = 3 K2SO4 + 2 AlN
Br2 + I = Br2I =>
Br2 + I = Br2I
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
NaBr + NH4Cl = BrNH4 + NaCl =>
NaBr + NH4Cl = BrNH4 + NaCl
Cu2 + H2O = Cu(OH)2 + H2 =>
Cu2 + 4 H2O = 2 Cu(OH)2 + 2 H2
KMnO4 + H2SO4 = K2SO4 + Mn2O7 + H2O =>
2 KMnO4 + H2SO4 = K2SO4 + Mn2O7 + H2O
Fe(NO3)2 + HNO3 = Fe(NO3)3 + H2O + NO2 =>
Fe(NO3)2 + 2 HNO3 = Fe(NO3)3 + H2O + NO2
HCl = H + Cl =>
HCl = H + Cl
Mn2O3 + H2O = HMnO2 =>
Mn2O3 + H2O = 2 HMnO2
KClO3 + NH3 = KCl + N2 + H2O =>
KClO3 + 2 NH3 = KCl + N2 + 3 H2O
C6H5OH + FeCl3 = Fe(C6H5O)3 + HCl =>
3 C6H5OH + FeCl3 = Fe(C6H5O)3 + 3 HCl
Cl2 + KI + NaOH = NaIO3 + NaCl + KCl + H2O =>
3 Cl2 + KI + 6 NaOH = NaIO3 + 5 NaCl + KCl + 3 H2O
Fe(OH)3 + Cl2 + KOH = KCl + K2FeO4 + H2O =>
2 Fe(OH)3 + 3 Cl2 + 10 KOH = 6 KCl + 2 K2FeO4 + 8 H2O
Fe3Br8 = FeBr2 + Br2 =>
Fe3Br8 = 3 FeBr2 + Br2
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