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*102CaH2 + 204 H2O = 102 Ca(OH)2 + 204 H2
Sn + HCl + KI = SnI4 + KCl + H =>
Sn + 4 HCl + 4 KI = SnI4 + 4 KCl + 4 H
FeS + O2 = Fe2O3 + S3 =>
12 FeS + 9 O2 = 6 Fe2O3 + 4 S3
Na3(PO4) + AlCl3 = Na3Cl3 + Al(PO4) =>
Na3(PO4) + AlCl3 = Na3Cl3 + Al(PO4)
KI(aq) + Cl2(g) = KCl(aq) + I2(l) =>
2 KI(aq) + Cl2(g) = 2 KCl(aq) + I2(l)
H2C + Si(OH)4 = SiC2 + H2O =>
2 H2C + Si(OH)4 = SiC2 + 4 H2O
C6H8N2O4 + HCl = H2O + CO2 + C5H7N2 + Cl =>
C6H8N2O4 + 3 HCl = 2 H2O + CO2 + C5H7N2 + 3 Cl
NH4I + NaOH = NH4OH + NaI =>
NH4I + NaOH = NH4OH + NaI
KMnO4 + VO(SO4) + H2O = (VO2)2SO4 + MnSO4 + H2SO4 + K2SO4 =>
2 KMnO4 + 10 VO(SO4) + 2 H2O = 5(VO2)2SO4 + 2 MnSO4 + 2 H2SO4 + K2SO4
Cu2S + HBr = CuBr + H2S =>
Cu2S + 2 HBr = 2 CuBr + H2S
CrCl2 + Na2Cr2O7 + HCl = CrCl3 + NaCl + H2O =>
6 CrCl2 + Na2Cr2O7 + 14 HCl = 8 CrCl3 + 2 NaCl + 7 H2O
KNO3 + C6H12O6 = KNO2 + H2O + CO2 =>
12 KNO3 + C6H12O6 = 12 KNO2 + 6 H2O + 6 CO2
ZnS + H2SO4 = H2S + ZnSO4 =>
ZnS + H2SO4 = H2S + ZnSO4
KMnO4 + C2H5CHO + H2SO4 = MnSO4 + K2SO4 + C6H5COOH + H2O =>
22 KMnO4 + 35 C2H5CHO + 33 H2SO4 = 22 MnSO4 + 11 K2SO4 + 15 C6H5COOH + 93 H2O
FeSO4 + NaClO3 = FeClO3 + NaSO4 =>
FeSO4 + NaClO3 = FeClO3 + NaSO4
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
Ca3(PO4)2 + Al = Ca + Al3(PO4)3 =>
3 Ca3(PO4)2 + 6 Al = 9 Ca + 2 Al3(PO4)3
HCOOH + BaCO3 = (HCOO)2Ba + H2O + CO2 =>
2 HCOOH + BaCO3 = (HCOO)2Ba + H2O + CO2
NH4OH + NaOH = NaNH4(OH)2 =>
NH4OH + NaOH = NaNH4(OH)2
NiCl2(aq) + Na2SO4(aq) = NiSO4(aq) + Na2Cl2(aq) =>
NiCl2(aq) + Na2SO4(aq) = NiSO4(aq) + Na2Cl2(aq)
C6H6N12O12 = N2 + H2O + CO2 + C =>
2 C6H6N12O12 = 12 N2 + 6 H2O + 9 CO2 + 3 C
FeCr2O4 + KOH + H2O2 = K2CrO4 + K2FeO4 + H2O =>
FeCr2O4 + 6 KOH + 5 H2O2 = 2 K2CrO4 + K2FeO4 + 8 H2O
MgCr2O7 + NaCl = Na2Cr2O7 + MgCl2 =>
MgCr2O7 + 2 NaCl = Na2Cr2O7 + MgCl2
Fe3(SO4)3 + Na = Na2(SO4) + Fe =>
Fe3(SO4)3 + 6 Na = 3 Na2(SO4) + 3 Fe
C4H9Br + NaOH = NaBr + C4H9OH =>
C4H9Br + NaOH = NaBr + C4H9OH
Li2S(s) = Li(s) + S(s) =>
Li2S(s) = 2 Li(s) + S(s)
CuFeS2 + O2 = CuS + SO2 + FeO3 =>
2 CuFeS2 + 5 O2 = 2 CuS + 2 SO2 + 2 FeO3
NH4BO3 + HCl = NH4Cl + HBO3 =>
NH4BO3 + HCl = NH4Cl + HBO3
Al(s) + H3PO4 = AlPO4 + H2 =>
2 Al(s) + 2 H3PO4 = 2 AlPO4 + 3 H2
CuSO4 + AgNo3 = Ag2SO4 + Cu(No3)2 =>
CuSO4 + 2 AgNo3 = Ag2SO4 + Cu(No3)2
H2S + Cl2 = HCl + S2 =>
2 H2S + 2 Cl2 = 4 HCl + S2
Pd(OH)4 + HAsO3 = Pd(AsO3)4 + H2O =>
Pd(OH)4 + 4 HAsO3 = Pd(AsO3)4 + 4 H2O
BaCO3 + HBr = H2CO3 + BaBr2 =>
BaCO3 + 2 HBr = H2CO3 + BaBr2
MgSO4 + H2O = Mg(OH)2 + H2SO4 =>
MgSO4 + 2 H2O = Mg(OH)2 + H2SO4
Zn(NO3)2 + H2SO4 = ZnSO4 + H2(NO3)2 =>
Zn(NO3)2 + H2SO4 = ZnSO4 + H2(NO3)2
H2S + Cl2 = HCl + S2 =>
2 H2S + 2 Cl2 = 4 HCl + S2
Sn(NO3)4 = Sn + NO3 =>
Sn(NO3)4 = Sn + 4 NO3
KMnO4 + KCNS + HNO3 = HCN + Mn(NO3)2 + K2SO4 + H2O + KNO3 =>
6 KMnO4 + 5 KCNS + 13 HNO3 = 5 HCN + 6 Mn(NO3)2 + 5 K2SO4 + 4 H2O + KNO3
CuSO4 + AgNo3 = Ag2SO4 + Cu(No3)2 =>
CuSO4 + 2 AgNo3 = Ag2SO4 + Cu(No3)2
CH3COOH + MgHCO3 = MgCH3COO + H2CO3 =>
CH3COOH + MgHCO3 = MgCH3COO + H2CO3
Na2CO3H2O + CrCl3 = NaCl + CO2 + Cr(OH)3 =>
3 Na2CO3H2O + 2 CrCl3 = 6 NaCl + 3 CO2 + 2 Cr(OH)3
NaFeO2 + Na2O2 = Na2FeO4 + Na2O =>
2 NaFeO2 + 3 Na2O2 = 2 Na2FeO4 + 2 Na2O
Fe(NO3)3 + Na2SiO3 = FeNa3 + (NO3)2SiO3 =>
2 Fe(NO3)3 + 3 Na2SiO3 = 2 FeNa3 + 3(NO3)2SiO3
Cl(g) + P2(s) = PCl5 =>
10 Cl(g) + P2(s) = 2 PCl5
FeCl2 + NH4OH = Fe(NH3)3 + Cl2 + H2O =>
FeCl2 + 3 NH4OH = Fe(NH3)3 + Cl2 + 3 H2O
MgSO4(l) + HCl(aq) = MgCl2 + H2SO4(aq) =>
MgSO4(l) + 2 HCl(aq) = MgCl2 + H2SO4(aq)
Fe3 + H3 = FeH =>
Fe3 + H3 = 3 FeH
CaSO4 + H2O + O2 = CaSO42(H2O) =>
CaSO4 + H2O + 19 O2 = CaSO42(H2O)
Mn{3+} + PbO2 = MnO4{-} + Pb{2+} =>
Mn{3+} + 2 PbO2 = MnO4{-} + 2 Pb{2+}
NH4{+} + NO3{-} = N2O + OH{-} + H{+} =>
NH4{+} + NO3{-} = N2O + 2 OH{-} + 2 H{+}
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