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2 K + 2 H2O = 2 KOH + H2
Cr2O3 + KNO3 + Na2CO3 = KNO2 + Na2CrO4 + CO2 =>
Cr2O3 + 3 KNO3 + 2 Na2CO3 = 3 KNO2 + 2 Na2CrO4 + 2 CO2
Ca + H2SiO3 = H2 + Ca2SiO3 =>
2 Ca + H2SiO3 = H2 + Ca2SiO3
Cr + H2O = CrH2 + O2 =>
2 Cr + 2 H2O = 2 CrH2 + O2
C6H5CHCH2 + HBr = C6H5CH2CH2Br =>
C6H5CHCH2 + HBr = C6H5CH2CH2Br
HCOOH + KOH = HCOOK + H2O =>
HCOOH + KOH = HCOOK + H2O
C3H7Cl + Na = C3H7Na + Cl2 =>
2 C3H7Cl + 2 Na = 2 C3H7Na + Cl2
P + O2 = P2O3 =>
4 P + 3 O2 = 2 P2O3
Na2SO4 + BaCl2 = NaCl + BaSO4 =>
Na2SO4 + BaCl2 = 2 NaCl + BaSO4
Pb(NO3)2 + NaOH = NaNO3 + Pb(OH)2 =>
Pb(NO3)2 + 2 NaOH = 2 NaNO3 + Pb(OH)2
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
MgCl2 + HBr = MgBr2 + HCl =>
MgCl2 + 2 HBr = MgBr2 + 2 HCl
FeO + O2 = Fe2O3 =>
4 FeO + O2 = 2 Fe2O3
CaCl2(aq) + K2CrO4(aq) = CaCrO4 + KCl =>
CaCl2(aq) + K2CrO4(aq) = CaCrO4 + 2 KCl
CaO + P2O5 = Ca3(PO4)2 =>
3 CaO + P2O5 = Ca3(PO4)2
KMnO4 + FeSO4 + H2SO3 = Fe(SO4)3 + MnSO4 + K2SO4 + H2O =>
4 KMnO4 + FeSO4 + 8 H2SO3 = Fe(SO4)3 + 4 MnSO4 + 2 K2SO4 + 8 H2O
Cu2O + H2SO4 = CuSO4 + SO2 + H2O =>
Cu2O + 3 H2SO4 = 2 CuSO4 + SO2 + 3 H2O
Cu(OH)2 + Na2S = CuS + NaOH =>
Cu(OH)2 + Na2S = CuS + 2 NaOH
CaI2 + Cr2(SO4)3 = CaSO4 + CrI3 =>
3 CaI2 + Cr2(SO4)3 = 3 CaSO4 + 2 CrI3
NaH(CO3) + HCl = NaCl + H2O + CO2 =>
NaH(CO3) + HCl = NaCl + H2O + CO2
CH3CH2OH + Cr2O7{-}2 + H{+} = CO2 + Cr{3+} + H2O =>
7 CH3CH2OH + 12 Cr2O7{-}2 + 84 H{+} = 14 CO2 + 24 Cr{3+} + 63 H2O
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
Mg(NO3)2 + MgSO4 = Mg(SO4)2 + MgNO3 =>
Mg(NO3)2 + 2 MgSO4 = Mg(SO4)2 + 2 MgNO3
H2O + NaOH = NaO2H3 =>
H2O + NaOH = NaO2H3
HCH2CHO2 + OH = H2O + CO2 =>
HCH2CHO2 + 8 OH = 6 H2O + 2 CO2
FeSO3 = FeO + SO2 =>
FeSO3 = FeO + SO2
UO2Cl2 + Zn + HCl = UCl4 + ZnCl2 + H2O =>
UO2Cl2 + Zn + 4 HCl = UCl4 + ZnCl2 + 2 H2O
C6H12O6 + H2O = C2H5OH + O2 =>
C6H12O6 + 3 H2O = 3 C2H5OH + 3 O2
Cu(NO3)2*3H2O = CuO + N + O + H2O =>
Cu(NO3)2*3H2O = CuO + 2 N + 5 O + 3 H2O
MgCl2 + HCl = MgH2 + Cl2 =>
MgCl2 + 2 HCl = MgH2 + 2 Cl2
Na2CO3(aq) + HNO3(l) = NaNO3(aq) + H2O(l) + CO2(g) =>
Na2CO3(aq) + 2 HNO3(l) = 2 NaNO3(aq) + H2O(l) + CO2(g)
Cu + H2SO4 = CuSO4 + H2O + SO2 =>
Cu + 2 H2SO4 = CuSO4 + 2 H2O + SO2
NH4NO3 = H2O + N2O =>
NH4NO3 = 2 H2O + N2O
FeCl3*6H2O + NaOH = Fe(OH)3 + NaCl + H2O =>
FeCl3*6H2O + 3 NaOH = Fe(OH)3 + 3 NaCl + 6 H2O
BCl3(g) + H2O(t) = H3BO3(s) + HCl(s) =>
BCl3(g) + 3 H2O(t) = H3BO3(s) + 3 HCl(s)
NaHCO3 + H2O = H2CO3 + NaOH =>
NaHCO3 + H2O = H2CO3 + NaOH
NH4NO3 = H2O + N2 + O2 =>
2 NH4NO3 = 4 H2O + 2 N2 + O2
Fe(NO3)3 + Pb(C2H3O2) = Fe2(C2H3O2)3 + Pb(NO3)2 =>
2 Fe(NO3)3 + 3 Pb(C2H3O2) = Fe2(C2H3O2)3 + 3 Pb(NO3)2
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
KI + CHCl3 = KCl + I2 + CHCl =>
2 KI + CHCl3 = 2 KCl + I2 + CHCl
Rb + RbNO3 = Rb2O + N2 =>
10 Rb + 2 RbNO3 = 6 Rb2O + N2
KKMnO4 = K2O + MnO + O2 =>
KKMnO4 = K2O + MnO + O2
KClO3 + SbS3 = Sb2O5 + KCl + SO2 =>
17 KClO3 + 6 SbS3 = 3 Sb2O5 + 17 KCl + 18 SO2
(NH4)3PO4 + CaBr2 = Ca3(PO4)2 + (NH4)Br =>
2(NH4)3PO4 + 3 CaBr2 = Ca3(PO4)2 + 6(NH4)Br
Y + O2 = YO7 =>
2 Y + 7 O2 = 2 YO7
Cu(OH)2 + (NH4)2SO4 + NH4OH = [Cu(NH3)4]SO4 + H2O =>
Cu(OH)2 + (NH4)2SO4 + 2 NH4OH = [Cu(NH3)4]SO4 + 4 H2O
SO3 + HOH = SO3OH + H2 =>
2 SO3 + 2 HOH = 2 SO3OH + H2
H2(g) + C2H2(g) = C2H6(g) =>
2 H2(g) + C2H2(g) = C2H6(g)
C4H10O4S + O2 = H2O + CO2 + SO2 =>
2 C4H10O4S + 11 O2 = 10 H2O + 8 CO2 + 2 SO2
H3(PO4) + NH3 = (NH4)2H(PO4) =>
H3(PO4) + 2 NH3 = (NH4)2H(PO4)
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