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H2Se + 2 K = K2Se + H2
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
NH4HSO4 = NH3 + H2SO4 =>
NH4HSO4 = NH3 + H2SO4
[Cu(OH)]2CO3 + CH3COOH = (CH3COO)2Cu + CO2 + H2O =>
[Cu(OH)]2CO3 + 4 CH3COOH = 2(CH3COO)2Cu + CO2 + 3 H2O
Hg2(NO3)2(aq) + HBr(aq) = Hg2Br2(s) + HNO3(aq) =>
Hg2(NO3)2(aq) + 2 HBr(aq) = Hg2Br2(s) + 2 HNO3(aq)
NH4Cl + KOH + K2[HgI4] = [NH2Hg2O]I + KI + H2O + KCl =>
NH4Cl + 4 KOH + 2 K2[HgI4] = [NH2Hg2O]I + 7 KI + 3 H2O + KCl
Na2SO3 + NaCl = ClSO3 + NaNa =>
2 Na2SO3 + 2 NaCl = 2 ClSO3 + 3 NaNa
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Sn(OH)4 = SnO2 + H2O =>
Sn(OH)4 = SnO2 + 2 H2O
CaO + H2SO4 = CaSO4 + H2O =>
CaO + H2SO4 = CaSO4 + H2O
Na2SO3 + NaCl = ClSO3 + NaNa =>
2 Na2SO3 + 2 NaCl = 2 ClSO3 + 3 NaNa
LiO2 = Li2O2 + O2 =>
2 LiO2 = Li2O2 + O2
C12H26COOH + SCl2 = C12H26COCl + HCl + S + SO2 =>
2 C12H26COOH + 2 SCl2 = 2 C12H26COCl + 2 HCl + S + SO2
PbO2 + H2SO4 = H2O + Pb + SO4 =>
PbO2 + 2 H2SO4 = 2 H2O + Pb + 2 SO4
AgNO3 + CuCl2 = AgCl2 + Cu(NO3) =>
AgNO3 + CuCl2 = AgCl2 + Cu(NO3)
KNO3 + H2CO3 = K2CO3 + HNO3 =>
2 KNO3 + H2CO3 = K2CO3 + 2 HNO3
C2H6O + Na2Cr2O7 + H2SO4 = C2H4O + H2O + Cr + Na2S =>
10 C2H6O + Na2Cr2O7 + H2SO4 = 10 C2H4O + 11 H2O + 2 Cr + Na2S
H{+} + H2O + CuFeS2 = H2S + CuHS{-} + Fe{2+} + O2 =>
2 H{+} + 2 H2O + 2 CuFeS2 = 2 H2S + 2 CuHS{-} + 2 Fe{2+} + O2
H2CO3 + Ca(OH)2 = CaCO3 + HOH =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 HOH
Ca(NO3)2(aq) + Na2C2O4(aq) = CaC2O4(aq) + NaNO3(aq) =>
Ca(NO3)2(aq) + Na2C2O4(aq) = CaC2O4(aq) + 2 NaNO3(aq)
Na2CO3(s) + HCl = CO2(g) + H2O(l) + NaCl =>
Na2CO3(s) + 2 HCl = CO2(g) + H2O(l) + 2 NaCl
CH2 = C2H2 + H2 =>
2 CH2 = C2H2 + H2
Na2(CO3) + Mg(NO3)2 = MgCO3 + NaNO3 =>
Na2(CO3) + Mg(NO3)2 = MgCO3 + 2 NaNO3
NH4Cl + HCl = HCl2 + NH4 =>
NH4Cl + HCl = HCl2 + NH4
Zn(s) + HNO3 = Zn(NO3)2(aq) + H(g) =>
Zn(s) + 2 HNO3 = Zn(NO3)2(aq) + 2 H(g)
CaCN2 + H2O = Ca(OH)2 + CH4N2O =>
CaCN2 + 3 H2O = Ca(OH)2 + CH4N2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
CuCl2*4H2O + H2C2O4 = C2CuO4*4H2O + HCl =>
CuCl2*4H2O + H2C2O4 = C2CuO4*4H2O + 2 HCl
NaC6H8O6 + CaCl2 = CaNaC6H8O6 + Cl2 =>
NaC6H8O6 + CaCl2 = CaNaC6H8O6 + Cl2
NaCl + AlPO4 + H2SO4 = Na2SO4 + AlCl3 + H3PO4 =>
6 NaCl + 2 AlPO4 + 3 H2SO4 = 3 Na2SO4 + 2 AlCl3 + 2 H3PO4
BaCl2 + KMnO4 + H2SO4 = BaSO4 + KCl + HMnO4 =>
BaCl2 + 2 KMnO4 + H2SO4 = BaSO4 + 2 KCl + 2 HMnO4
MnO2(s) + HCl(aq) = MnCl2(s) + Cl2(g) + H2O(l) =>
MnO2(s) + 4 HCl(aq) = MnCl2(s) + Cl2(g) + 2 H2O(l)
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
KNO3 + Al + KOH + H2O = NH3 + KAlO2 =>
3 KNO3 + 8 Al + 5 KOH + 2 H2O = 3 NH3 + 8 KAlO2
C2H6O + O2 = CO2 + H2O =>
C2H6O + 3 O2 = 2 CO2 + 3 H2O
Na2SO3 + NaCl = ClSO3 + NaNa =>
2 Na2SO3 + 2 NaCl = 2 ClSO3 + 3 NaNa
C5H10 + O2 = CO2 + H2O =>
2 C5H10 + 15 O2 = 10 CO2 + 10 H2O
CH3COOH + MgCO3 = H2CO3 + Mg(CH3COO)2 =>
2 CH3COOH + MgCO3 = H2CO3 + Mg(CH3COO)2
SeCl6 + O2 = SeO2 + Cl2 =>
SeCl6 + O2 = SeO2 + 3 Cl2
CrCl3 + NH3*H2O = Cr(OH)3 + NH4Cl =>
CrCl3 + 3 NH3*H2O = Cr(OH)3 + 3 NH4Cl
CH3COOH + NH3 = CH3CONH2 + H2O =>
CH3COOH + NH3 = CH3CONH2 + H2O
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
Na2SO3 + NaCl = ClSO3 + NaNa =>
2 Na2SO3 + 2 NaCl = 2 ClSO3 + 3 NaNa
Rb + CH3COOH = RbC2H3O2 + H =>
Rb + CH3COOH = RbC2H3O2 + H
Pb(NO3)2 + Na2CO3 = PbCO3 + NaNO3 =>
Pb(NO3)2 + Na2CO3 = PbCO3 + 2 NaNO3
SrCl2 + CrSO4 = SrSO4 + Cl2Cr =>
SrCl2 + CrSO4 = SrSO4 + Cl2Cr
K2CO3 + NaHSO4 = NaHCO3 + K2SO4 =>
K2CO3 + NaHSO4 = NaHCO3 + K2SO4
FeI2 + K2Cr2O7 = KI + FeCr2O7 =>
FeI2 + K2Cr2O7 = 2 KI + FeCr2O7
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
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