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Fe3O4 + 4 NaH = 3 Fe + 4 NaOH
Cr(OH)2 + H4Sb2O5 = Cr2Sb2O5 + H2O =>
2 Cr(OH)2 + H4Sb2O5 = Cr2Sb2O5 + 4 H2O
CH4 + Cl2 = CH3Cl + H2 =>
2 CH4 + Cl2 = 2 CH3Cl + H2
H2SO4 + Na2S2O3 = H2SO3 + Na2SO4 + S =>
H2SO4 + Na2S2O3 = H2SO3 + Na2SO4 + S
CH3COOH + C3H70H = CH3COOC3H7 + H2O =>
337 CH3COOH + 12 C3H70H = 142 CH3COOC3H7 + 390 H2O
NaClKBr = NaBrKCl =>
NaClKBr = NaBrKCl
Mn3{+7}(PO4)7 + Cu{+2}(NO3)2 = Mn{+7}(NO3)7 + Cu2{+2}(PO4)3 =>
Mn3{+7}(PO4)7 + 14 Cu{+2}(NO3)2 = 3 Mn{+7}(NO3)7 + 7 Cu2{+2}(PO4)3
HBr + CI = HCI + Br2 =>
2 HBr + 2 CI = 2 HCI + Br2
Al2O3 + NaOH = Al(OH)3 + Na2O =>
Al2O3 + 6 NaOH = 2 Al(OH)3 + 3 Na2O
Na2S2O3 + H2SO4 = Na2SO4 + S + H2O =>
3 Na2S2O3 + H2SO4 = 3 Na2SO4 + 4 S + H2O
I(s) + KOH(aq) = KIO3(s) + KI(s) + H20(l) =>
60 I(s) + 60 KOH(aq) = 20 KIO3(s) + 40 KI(s) + 3 H20(l)
Al + C(SO4)3 = C + Al2(SO4)3 =>
2 Al + C(SO4)3 = C + Al2(SO4)3
Al(NO3)3 + Na3PO4 = NaNO3 + Al(PO4) =>
Al(NO3)3 + Na3PO4 = 3 NaNO3 + Al(PO4)
HCl + Ca(NO2)2 = CaCl2 + HNO2 =>
2 HCl + Ca(NO2)2 = CaCl2 + 2 HNO2
NO2{-} + MnO4{-} + H2O = MnO2 + NO3{-} + OH{-} =>
3 NO2{-} + 2 MnO4{-} + H2O = 2 MnO2 + 3 NO3{-} + 2 OH{-}
ZnS + C = Zn + CS2 =>
2 ZnS + C = 2 Zn + CS2
H2SO4 + Na2S2O3 = Na2S2O6 + H2O + SO2 =>
3 H2SO4 + Na2S2O3 = Na2S2O6 + 3 H2O + 3 SO2
Pb(Ac)2 + K2Cr2O7 = PbCr2O7 + KAc =>
Pb(Ac)2 + K2Cr2O7 = PbCr2O7 + 2 KAc
Na2S2O3 + H2SO4 = Na2SO4 + H2S + SO2 =>
4 Na2S2O3 + 3 H2SO4 = 4 Na2SO4 + 3 H2S + 4 SO2
NH2 + H2SO4 = S + HNO3 + H2O =>
6 NH2 + 7 H2SO4 = 7 S + 6 HNO3 + 10 H2O
H2SO4 + Na2S2O3 = Na2S2O4 + H2O + SO2 =>
H2SO4 + Na2S2O3 = Na2S2O4 + H2O + SO2
Sb(OH)3 + LiOH = Li3SbO3 + H2O =>
Sb(OH)3 + 3 LiOH = Li3SbO3 + 3 H2O
BaBr2(NH4)2SO4 = BaSO4 + NH4Br =>
BaBr2(NH4)2SO4 = BaSO4 + 2 NH4Br
Fe{2+} + Ca(OH)2 = Fe(OH)2 + Ca{2+} =>
Fe{2+} + Ca(OH)2 = Fe(OH)2 + Ca{2+}
(NH4)2SO4(aq) + SrCl2(aq) = Cl(NH4)(aq) + Sr(SO4)(s) =>
(NH4)2SO4(aq) + SrCl2(aq) = 2 Cl(NH4)(aq) + Sr(SO4)(s)
Sr + Cl = SrCl =>
Sr + Cl = SrCl
C4H10 + O2 = CH2COOH + H2O =>
C4H10 + 3 O2 = 2 CH2COOH + 2 H2O
[Ag(NH3)2]OH + HCOONa = Ag + NaHCO3 + NH3 + H2O =>
2[Ag(NH3)2]OH + HCOONa = 2 Ag + NaHCO3 + 4 NH3 + H2O
C6H12O6 + (Cr2O7){2}{-} + H{+} = CO2 + Cr{3}{+} + H2O =>
5 C6H12O6 + 12(Cr2O7){2}{-} + 48 H{+} = 30 CO2 + 24 Cr{3}{+} + 54 H2O
Na4C = Na + C =>
Na4C = 4 Na + C
CO2 + H2S = C6H12O6 + S + H2O =>
6 CO2 + 12 H2S = C6H12O6 + 12 S + 6 H2O
H2O2 + C = CO2 + H2 =>
H2O2 + C = CO2 + H2
Na2SO3 + I2 + KOH = Na2SO4 + KI + H2O =>
Na2SO3 + I2 + 2 KOH = Na2SO4 + 2 KI + H2O
C10H23N + O2 = CO2 + H2O + N2 =>
4 C10H23N + 63 O2 = 40 CO2 + 46 H2O + 2 N2
H{+} + Fe{2+} + CrO7{2-} = Fe{3+} + Cr{3+} + H2O =>
14 H{+} + 9 Fe{2+} + CrO7{2-} = 9 Fe{3+} + Cr{3+} + 7 H2O
Ni + H2SO4 + H2O = NiSO4(H2O)6 + H2 =>
Ni + H2SO4 + 6 H2O = NiSO4(H2O)6 + H2
HI + Ca = H2 + Ca2I =>
2 HI + 4 Ca = H2 + 2 Ca2I
CN{-} + OCl{-} + OH{-} = N2 + CO2{-2} + H2O + Cl{-} =>
2 CN{-} + 3 OCl{-} + 2 OH{-} = N2 + 2 CO2{-2} + H2O + 3 Cl{-}
Na2CO3(aq) + Fe(NO3)3(aq) = Na2(NO3)3(aq) + FeCO3(s) =>
Na2CO3(aq) + Fe(NO3)3(aq) = Na2(NO3)3(aq) + FeCO3(s)
Cr(OH)3(s) + ClO{-}(aq) + OH{-}(aq) = CrO4{2-}(aq) + Cl{-}(aq) + H2O(l) =>
2 Cr(OH)3(s) + 3 ClO{-}(aq) + 4 OH{-}(aq) = 2 CrO4{2-}(aq) + 3 Cl{-}(aq) + 5 H2O(l)
FeBr3(aq) + K2SO4(aq) = Fe2(SO4)3(aq) + KBr(aq) =>
2 FeBr3(aq) + 3 K2SO4(aq) = Fe2(SO4)3(aq) + 6 KBr(aq)
NH3 + I = H + NI3 =>
NH3 + 3 I = 3 H + NI3
LaCl3 + NaOH = La(OH)3 + NaCl =>
LaCl3 + 3 NaOH = La(OH)3 + 3 NaCl
I{-} + H{+} + Cr2O7{2-} = Cr{3+} + H2O + IO3{-} =>
I{-} + 8 H{+} + Cr2O7{2-} = 2 Cr{3+} + 4 H2O + IO3{-}
FeCl3*6H2O + NaOH = Fe(OH)3 + NaCl + H2O =>
FeCl3*6H2O + 3 NaOH = Fe(OH)3 + 3 NaCl + 6 H2O
Cu(s) + AgNo3(aq) = Cu(No3)2(ag) + Ag(s) =>
Cu(s) + 2 AgNo3(aq) = Cu(No3)2(ag) + 2 Ag(s)
*2N2*6H2 = *2NH3 =>
*2N2*6H2 = 2*2NH3
K2Cr2O7 + H2SO4 + CH3CH2OH = Cr2(SO4)3 + H2O + CH3CHO(g) + K2SO4 =>
K2Cr2O7 + 4 H2SO4 + 3 CH3CH2OH = Cr2(SO4)3 + 7 H2O + 3 CH3CHO(g) + K2SO4
FeSO4 + Fe(OH)2 = Fe2(OH)2SO4 =>
FeSO4 + Fe(OH)2 = Fe2(OH)2SO4
HgO = O2Hg2 =>
2 HgO = O2Hg2
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