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4 Hg2CrO2 = 8 Hg + 2 Cr2O3 + O2
PbO2 + Na3[Cr(OH)6] + NaOH = Na2[Pb(OH)4] + Na2CrO4 + H2O =>
3 PbO2 + 2 Na3[Cr(OH)6] + 4 NaOH = 3 Na2[Pb(OH)4] + 2 Na2CrO4 + 2 H2O
Zn(NO3)2(aq) + KI(aq) = ZnI2(aq) + KNO3(aq) =>
Zn(NO3)2(aq) + 2 KI(aq) = ZnI2(aq) + 2 KNO3(aq)
H3PO4 + Ca(OH)2 = Ca(H3PO4)2 + OH =>
2 H3PO4 + Ca(OH)2 = Ca(H3PO4)2 + 2 OH
AgNO3 + O2 = AgNO3O3 =>
2 AgNO3 + 3 O2 = 2 AgNO3O3
PbS2 + HCl = PbCl2 + H2S2 =>
PbS2 + 2 HCl = PbCl2 + H2S2
P4O4 + O2 = P4O10 =>
P4O4 + 3 O2 = P4O10
Na + AlO2 = NaAlO2 =>
Na + AlO2 = NaAlO2
Zn(CN)2 + NaOH = Zn(OH)2 + NaCN =>
Zn(CN)2 + 2 NaOH = Zn(OH)2 + 2 NaCN
HPONaOH = NaPOH2O =>
HPONaOH = NaPOH2O
NiO3(s) = Ni(s) + O2(g) =>
2 NiO3(s) = 2 Ni(s) + 3 O2(g)
PbCl2(aq) + KI(aq) = PbI2 + KCl =>
PbCl2(aq) + 2 KI(aq) = PbI2 + 2 KCl
Zn(NO3)2 + Na2CO3 = ZnCO3 + NaNO3 =>
Zn(NO3)2 + Na2CO3 = ZnCO3 + 2 NaNO3
CH2OHCH2Cl + NaHCO3 = (CH2OH)2 + NaCl + CO2 =>
CH2OHCH2Cl + NaHCO3 = (CH2OH)2 + NaCl + CO2
C4H10 = C2H4 + H2 =>
C4H10 = 2 C2H4 + H2
K2Cr2O7 + NaC2O4 + H2SO4 = CO2 + Cr2(SO4)3 + Na2SO4 + K2SO4 + H2O =>
K2Cr2O7 + 6 NaC2O4 + 7 H2SO4 = 12 CO2 + Cr2(SO4)3 + 3 Na2SO4 + K2SO4 + 7 H2O
Cu3(PO4)2(s) + H2SO4(aq) = H3PO4 + CuSO4 =>
Cu3(PO4)2(s) + 3 H2SO4(aq) = 2 H3PO4 + 3 CuSO4
NaOH + KAl(SO4)2*12H2O = Al(OH)3 + Na2SO4 + KOH + H2O =>
4 NaOH + KAl(SO4)2*12H2O = Al(OH)3 + 2 Na2SO4 + KOH + 12 H2O
S + O2 + NaOH = H2O + Na2SO4 =>
2 S + 3 O2 + 4 NaOH = 2 H2O + 2 Na2SO4
[NH4]2Fe[SO4]2*6H2O + NaOH = Fe(OH)2 + Na2SO4 + (NH4)2SO4 + H2O =>
[NH4]2Fe[SO4]2*6H2O + 2 NaOH = Fe(OH)2 + Na2SO4 + (NH4)2SO4 + 6 H2O
BaCO3 + H2SO4 = BaSO4 + H2CO3 =>
BaCO3 + H2SO4 = BaSO4 + H2CO3
CoCl2(aq) + Na2CO3 = CoCO3 + NaCl =>
CoCl2(aq) + Na2CO3 = CoCO3 + 2 NaCl
H2(g) + O2 = H2O(g) =>
2 H2(g) + O2 = 2 H2O(g)
Cl2 + KI2 = KCl + I2 =>
Cl2 + 2 KI2 = 2 KCl + 2 I2
Zn + (FeCl)3 = ZnCl2 + Fe =>
3 Zn + 2(FeCl)3 = 3 ZnCl2 + 6 Fe
K + Sn(NO3)4 = Sn + K(NO3)4 =>
K + Sn(NO3)4 = Sn + K(NO3)4
S3 = S =>
S3 = 3 S
Na2[Sn(OH)6] + HCl = SnCl4 + NaOH + H2O =>
Na2[Sn(OH)6] + 4 HCl = SnCl4 + 2 NaOH + 4 H2O
K2(CO3) + Co(NO3)2 = K(NO3) + Co(CO3) =>
K2(CO3) + Co(NO3)2 = 2 K(NO3) + Co(CO3)
Fe = Fe2 =>
2 Fe = Fe2
ZnBr2 + AgNO3 = AgBr + Zn(NO3)2 =>
ZnBr2 + 2 AgNO3 = 2 AgBr + Zn(NO3)2
SnCl4NaOH = NaCl4SnOH =>
SnCl4NaOH = NaCl4SnOH
Na2HPO4 + Ca(OH)2 = Ca3(PO4)2 + NaOH + H2O =>
2 Na2HPO4 + 3 Ca(OH)2 = Ca3(PO4)2 + 4 NaOH + 2 H2O
Cr(OH)3NH4OH = CrOHNH4(OH)3 =>
Cr(OH)3NH4OH = CrOHNH4(OH)3
Cu(NO3)2*25H2O = CuO + N2O5 + H2O =>
Cu(NO3)2*25H2O = CuO + N2O5 + 25 H2O
B2S3(s) + H2O = H3BO3 + H2S =>
B2S3(s) + 6 H2O = 2 H3BO3 + 3 H2S
CH3COOH(aq) + NaOH(aq) = CH3COONa(aq) + H2O(l)0 =>
CH3COOH(aq) + NaOH(aq) = CH3COONa(aq) + H2O(l)0
Ba(OH)2 + K2SO4 = BaSO4 + KOH =>
Ba(OH)2 + K2SO4 = BaSO4 + 2 KOH
PB(NO3)2 = (heated)PBO + NO2 + O2 =>
2 PB(NO3)2 = 2(heated)PBO + 4 NO2 + O2
S8 + K2SO4 + NaOH = K2S2O3 + Na2S2O3 + H2O =>
S8 + 4 K2SO4 + 4 NaOH = 4 K2S2O3 + 2 Na2S2O3 + 2 H2O
NaCl = ClNa =>
NaCl = ClNa
SeO3 + H2O = Se(OH)2 + O2 =>
SeO3 + H2O = Se(OH)2 + O2
H + O2 = H2O =>
4 H + O2 = 2 H2O
Na + CO2 = Na2O + C =>
4 Na + CO2 = 2 Na2O + C
CrN3O9 + H2S = Cr2S3 + HNO3 =>
2 CrN3O9 + 3 H2S = Cr2S3 + 6 HNO3
C19H19N7O6 + NaOH = C19H18N7O6Na + H2O =>
C19H19N7O6 + NaOH = C19H18N7O6Na + H2O
CaCl2*2H2O + NaOH = Ca(OH)2 + NaCl + H2O =>
CaCl2*2H2O + 2 NaOH = Ca(OH)2 + 2 NaCl + 2 H2O
Sr(NO3)2 + (NH4)2C2O4 = SrC2O4 + NH4NO3 =>
Sr(NO3)2 + (NH4)2C2O4 = SrC2O4 + 2 NH4NO3
PBr3 + H2SO4 = Br2 + SO2 + H3PO4 + H2O =>
2 PBr3 + 5 H2SO4 = 3 Br2 + 5 SO2 + 2 H3PO4 + 2 H2O
Cl + I2 = ClI =>
2 Cl + I2 = 2 ClI
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