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2 NaHCO3(s) = Na2CO3(s) + H2O(g) + CO2(g)
Pb + SO4 + AgNO3 = Pb(NO3)2 + Ag2SO4 =>
Pb + SO4 + 2 AgNO3 = Pb(NO3)2 + Ag2SO4
C137H97O9NS + O2 = CO2 + H2O + NS =>
4 C137H97O9NS + 627 O2 = 548 CO2 + 194 H2O + 4 NS
Cu(s) + H2SO4(aq) = CuSO4(aq) + S2O2(g) + H2O(l) =>
4 Cu(s) + 6 H2SO4(aq) = 4 CuSO4(aq) + S2O2(g) + 6 H2O(l)
C9H10NH + NaH = C9H13N + Na =>
C9H10NH + 2 NaH = C9H13N + 2 Na
CH4N2O + C6H12N4 + H2O + HCl = CH5NHCl + O2 =>
2 CH4N2O + C6H12N4 + 10 H2O + 8 HCl = 8 CH5NHCl + 6 O2
C3H6(OH)2 + H2O = C2H6O + CH2O2 =>
4 C3H6(OH)2 + H2O = 5 C2H6O + 2 CH2O2
Na2CrO4 + Na2S + H2O = Na3[Cr(OH)6] + S + NaOH =>
2 Na2CrO4 + 3 Na2S + 8 H2O = 2 Na3[Cr(OH)6] + 3 S + 4 NaOH
H3N + Br2 = N2 + NH4{+} + Br{-} =>
8 H3N + 3 Br2 = N2 + 6 NH4{+} + 6 Br{-}
K2Cr2O7 + NaS2O3 = Na2Cr2O7 + KS2O3 =>
K2Cr2O7 + 2 NaS2O3 = Na2Cr2O7 + 2 KS2O3
HCl + Mg2(CO3)2 = MgCl2 + H2CO3 =>
4 HCl + Mg2(CO3)2 = 2 MgCl2 + 2 H2CO3
FeO + CuSO4 + H2SO4 = Fe2(SO4)3 + Cu + H2O =>
2 FeO + CuSO4 + 2 H2SO4 = Fe2(SO4)3 + Cu + 2 H2O
Ca + Au + Sb = Ca2AuSb =>
2 Ca + Au + Sb = Ca2AuSb
Mn + NiCl2 = MnCl3 + Ni =>
2 Mn + 3 NiCl2 = 2 MnCl3 + 3 Ni
Cu3(PO4) + Ni2 = Ni3(PO4)2 + Cu =>
4 Cu3(PO4) + 3 Ni2 = 2 Ni3(PO4)2 + 12 Cu
H2Te + O2 = TeO2 + H2O =>
2 H2Te + 3 O2 = 2 TeO2 + 2 H2O
CoCl2*2H2O + NH4Cl + H2O2 + NH4OH = [Co(NH3)5Cl]Cl3 + H2O =>
CoCl2*2H2O + 2 NH4Cl + H2O2 + 3 NH4OH = [Co(NH3)5Cl]Cl3 + 7 H2O
Al + Cu(NO3)2 = Al(NO3)3 + Cu =>
2 Al + 3 Cu(NO3)2 = 2 Al(NO3)3 + 3 Cu
Ca + K2CO3 = CaCO3 + K2 =>
Ca + K2CO3 = CaCO3 + K2
C = C60 =>
60 C = C60
AlSO3 + NaOH = Al(OH)2 + Na2SO3 =>
AlSO3 + 2 NaOH = Al(OH)2 + Na2SO3
Na2C2 + H2O = C2H2 + Na{+} + OH{-} =>
Na2C2 + 2 H2O = C2H2 + 2 Na{+} + 2 OH{-}
Ca(No3)2 + NaF = CaF2 + NaNo3 =>
Ca(No3)2 + 2 NaF = CaF2 + 2 NaNo3
CuSO{-}4 + KSCN = KSO{-}4 + CuSCN =>
CuSO{-}4 + KSCN = KSO{-}4 + CuSCN
SrI2 + H2O = HI + SrO =>
SrI2 + H2O = 2 HI + SrO
IO3{-} + I{-} + H{+} = I32 + H2O =>
16 IO3{-} + 80 I{-} + 96 H{+} = 3 I32 + 48 H2O
CuCO3*Cu(HO)2 = CuO + CO2 + H2O =>
CuCO3*Cu(HO)2 = 2 CuO + CO2 + H2O
Fe2O3(s) + Mg(s) = MgO(s) + Fe(s) =>
Fe2O3(s) + 3 Mg(s) = 3 MgO(s) + 2 Fe(s)
NH3(g) + O2(g) = NO(g) + H2O(l) =>
4 NH3(g) + 5 O2(g) = 4 NO(g) + 6 H2O(l)
K4Fe(CN)6 + H2SO4 + KMnO4 = K2SO4 + Fe2(SO4)4 + MnO2 + CO2 + NO2 + H2O =>
6 K4Fe(CN)6 + 80 H2SO4 + 112 KMnO4 = 68 K2SO4 + 3 Fe2(SO4)4 + 112 MnO2 + 36 CO2 + 36 NO2 + 80 H2O
Pb(NO2)4 + COI3 = CO(NO2)3 + PbI4 =>
3 Pb(NO2)4 + 4 COI3 = 4 CO(NO2)3 + 3 PbI4
NH3 + Cr2(SO4)3 + H2O = Cr(OH)3 + (NH4)2SO4 =>
6 NH3 + Cr2(SO4)3 + 6 H2O = 2 Cr(OH)3 + 3(NH4)2SO4
K2O1 + HBr = K1Br1 + H2O =>
K2O1 + 2 HBr = 2 K1Br1 + H2O
BaF2(l) + Na2SO4(l) = BaSO4(s) + NaF(s) =>
BaF2(l) + Na2SO4(l) = BaSO4(s) + 2 NaF(s)
CHCOOCH2CH3 + O2 = CO2 + H2O =>
2 CHCOOCH2CH3 + 9 O2 = 8 CO2 + 6 H2O
(Cl2)Mn + Br2 + (NH4)OH = Mn(O2) + H2O + (NH4)Br + (NH4)Cl =>
(Cl2)Mn + Br2 + 4(NH4)OH = Mn(O2) + 2 H2O + 2(NH4)Br + 2(NH4)Cl
C4H6CaO4 + Na2CO3 = CaCO3 + CH3COONa =>
C4H6CaO4 + Na2CO3 = CaCO3 + 2 CH3COONa
HBr = H2 + HBr3 =>
3 HBr = H2 + HBr3
ZnS + HNO3 = Zn(NO3)2 + NO + SO2 + H2O =>
ZnS + 4 HNO3 = Zn(NO3)2 + 2 NO + SO2 + 2 H2O
Na2O + Cr(OH)3 = Cr2O3 + NaOH =>
3 Na2O + 2 Cr(OH)3 = Cr2O3 + 6 NaOH
Na2(B4O5(OH)4)*8H2O + HCl = NaCl + H3BO3 + H2O =>
Na2(B4O5(OH)4)*8H2O + 2 HCl = 2 NaCl + 4 H3BO3 + 5 H2O
Mn(NO3)2 + H2O = Mn(OH)2 + HNO3 =>
Mn(NO3)2 + 2 H2O = Mn(OH)2 + 2 HNO3
NO + O3 = NO2 =>
3 NO + O3 = 3 NO2
Al2O3 + CuSO4 = Al2(SO4)3 + CuO =>
Al2O3 + 3 CuSO4 = Al2(SO4)3 + 3 CuO
K2Cr2O7 + Na2C2O4 + H2SO4 = KS2O4 + Cr2(SO4)3 + Na2SO4 + H2O + CO2 =>
K2Cr2O7 + 8 Na2C2O4 + 15 H2SO4 = 2 KS2O4 + Cr2(SO4)3 + 8 Na2SO4 + 15 H2O + 16 CO2
NH3 + Mn(NO3)2 + H2O = Mn(OH)2 + NH4NO3 =>
2 NH3 + Mn(NO3)2 + 2 H2O = Mn(OH)2 + 2 NH4NO3
C(s) + H2(g) + O2(g) = C3H6O(l) =>
6 C(s) + 6 H2(g) + O2(g) = 2 C3H6O(l)
NaI + NaMnO4 + KOH = I2 + K2MnO4 + NaOH =>
2 NaI + 2 NaMnO4 + 4 KOH = I2 + 2 K2MnO4 + 4 NaOH
CdSO4(aq) + K2S(aq) = CdS + K2SO4 =>
CdSO4(aq) + K2S(aq) = CdS + K2SO4
HBr + C2H2 = C2H4Br2 =>
2 HBr + C2H2 = C2H4Br2
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