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6 Fe2S3 = 4 Fe3 + 9 S2
MnO4{-} + H{+} + SO3{2-} = SO42{-} + Mn2{+} + H2O =>
158 MnO4{-} + 250 H{+} + 13 SO3{2-} = 13 SO42{-} + 79 Mn2{+} + 125 H2O
NaNO2 + NaClO = NaCl + NaNO3 =>
NaNO2 + NaClO = NaCl + NaNO3
XKBr + CaS = XCaBr + KS =>
XKBr + CaS = XCaBr + KS
Ca3[PO4]2 + H2SO4 = CaSO4 + Ca[H2PO4]2 =>
Ca3[PO4]2 + 2 H2SO4 = 2 CaSO4 + Ca[H2PO4]2
KHSO3(aq) + HNO3(aq) = KNO3(aq) + H2O(l) + SO2(g) =>
KHSO3(aq) + HNO3(aq) = KNO3(aq) + H2O(l) + SO2(g)
Na3AlO3 + HNO3 = Al(NO3)3 + Na2O + H2O =>
2 Na3AlO3 + 6 HNO3 = 2 Al(NO3)3 + 3 Na2O + 3 H2O
CH3CHO + CUSO4 + NaOH = CH3COONa + CU2O + Na2SO4 + H2O =>
2 CH3CHO + 4 CUSO4 + 11 NaOH = 3 CH3COONa + 2 CU2O + 4 Na2SO4 + 5 H2O
Os2O3 + C = Os + CO2 =>
2 Os2O3 + 3 C = 4 Os + 3 CO2
HNO3(l) + Cu(s) = Cu{+2} + NO + NO3{-} + H2O =>
8 HNO3(l) + 3 Cu(s) = 3 Cu{+2} + 2 NO + 6 NO3{-} + 4 H2O
CH2O + Cl2 = HCl + HCO =>
2 CH2O + Cl2 = 2 HCl + 2 HCO
Ca + Al2O3 = Ca3O3 + Al =>
3 Ca + Al2O3 = Ca3O3 + 2 Al
Cr(OH)2 + NaClO + NaOH = Na2CrO4 + NaCl + H2O =>
Cr(OH)2 + 2 NaClO + 2 NaOH = Na2CrO4 + 2 NaCl + 2 H2O
C5H5(OH)3 + O2 = CO2 + H2O =>
2 C5H5(OH)3 + 11 O2 = 10 CO2 + 8 H2O
NH4OH + NaOH = NaNH4(OH)2 =>
NH4OH + NaOH = NaNH4(OH)2
Na + O2 = Na2O2 =>
2 Na + O2 = Na2O2
MnO2 + H2 = H2O + Mn =>
MnO2 + 2 H2 = 2 H2O + Mn
CH3COOH + HNO3 = CH3COO + H2NO3 =>
CH3COOH + HNO3 = CH3COO + H2NO3
Mn(NO3)2 + NaOH = Mn(OH)2 + Na(NO3) =>
Mn(NO3)2 + 2 NaOH = Mn(OH)2 + 2 Na(NO3)
FeSO4 + KOH = Fe(OH)2 + K2SO4 =>
FeSO4 + 2 KOH = Fe(OH)2 + K2SO4
Ga2(CO3)3 + HBrO3 = Ga(BrO3)3 + H2CO3 =>
Ga2(CO3)3 + 6 HBrO3 = 2 Ga(BrO3)3 + 3 H2CO3
BF3 + EtOH = B(OEt)3 + HF =>
BF3 + 3 EtOH = B(OEt)3 + 3 HF
H2O + Na2SO3 + Na2O2 = NaOH + Na2SO4 =>
H2O + Na2SO3 + Na2O2 = 2 NaOH + Na2SO4
Cu(NO3)2 + HCl = CuCl2 + NO3H =>
Cu(NO3)2 + 2 HCl = CuCl2 + 2 NO3H
Ca + P3 = Ca3P2 =>
9 Ca + 2 P3 = 3 Ca3P2
Rb2CO3 + LiBr = Li2CO3 + RbBr =>
Rb2CO3 + 2 LiBr = Li2CO3 + 2 RbBr
CaS + Sn(NO3)4 = SnS2 + Ca(NO3)2 =>
2 CaS + Sn(NO3)4 = SnS2 + 2 Ca(NO3)2
AgO + H2 = AgOH =>
2 AgO + H2 = 2 AgOH
CaO + Al = Ca(AlO2)2 + Ca =>
4 CaO + 2 Al = Ca(AlO2)2 + 3 Ca
Cd2 + HCl = CdCl2 + H2 =>
Cd2 + 4 HCl = 2 CdCl2 + 2 H2
C6H12O6 + O3 = CO + H2O =>
C6H12O6 + 2 O3 = 6 CO + 6 H2O
Cr(OH)2F = Cr2O3 + HF + H2O =>
2 Cr(OH)2F = Cr2O3 + 2 HF + H2O
Sr + N = SrN2 =>
Sr + 2 N = SrN2
Mg(OH)2 + H2PO2 = MgPO2 + H2O =>
Mg(OH)2 + H2PO2 = MgPO2 + 2 H2O
H3FeO4 = H2FeO4 + FeO(OH) + H2O =>
3 H3FeO4 = 2 H2FeO4 + FeO(OH) + 2 H2O
K3PO4 + LiBr = Li3PO4 + KBr =>
K3PO4 + 3 LiBr = Li3PO4 + 3 KBr
KMn(O)4 + HBr = Mn(Br)2 + KBr + (H)2O + (Br)2 =>
2 KMn(O)4 + 16 HBr = 2 Mn(Br)2 + 2 KBr + 8(H)2O + 5(Br)2
Na2B4O7 + Al2(SO4)3 = Na2SO4 + Al2(B4O7)3 =>
3 Na2B4O7 + Al2(SO4)3 = 3 Na2SO4 + Al2(B4O7)3
Na = Na0 =>
Na = Na0
NH4F + AgNO3 = NH4NO3 + AgF =>
NH4F + AgNO3 = NH4NO3 + AgF
C3H6O + KOH + I2 = KI + H2O + CHI3 =>
C3H6O + KOH + 5 I2 = KI + 2 H2O + 3 CHI3
Mg + Br2 = MgBr2 =>
Mg + Br2 = MgBr2
JnS + O2 = Jn2O3 + SO2 =>
4 JnS + 7 O2 = 2 Jn2O3 + 4 SO2
NaCl + H2O = NaOH + Cl2 + H2 =>
2 NaCl + 2 H2O = 2 NaOH + Cl2 + H2
FeCl3 + NaOH = NaCl + Fe(OH)3 =>
FeCl3 + 3 NaOH = 3 NaCl + Fe(OH)3
BrF3 = Br2 + F2 =>
2 BrF3 = Br2 + 3 F2
Fe(NH4)2(SO4)2*6H2O + H2C2O4 + K2C2O4 + H2O2 = K3[Fe(C2O4)2]*3H2O + NH4 + SO4 + H2O =>
2 Fe(NH4)2(SO4)2*6H2O + H2C2O4 + 3 K2C2O4 + H2O2 = 2 K3[Fe(C2O4)2]*3H2O + 4 NH4 + 4 SO4 + 8 H2O
C6H5COOH + C2H5OH = C6H5COOC2H5 + H2O =>
C6H5COOH + C2H5OH = C6H5COOC2H5 + H2O
Pb + Au(NO3)3 = Pb(NO3)2 + Au =>
3 Pb + 2 Au(NO3)3 = 3 Pb(NO3)2 + 2 Au
Fe + CuN2O6 = FeN2O6 + Cu =>
Fe + CuN2O6 = FeN2O6 + Cu
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