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5 Va + O2 = Va5O2
C2H5OH + K2Cr2O7 + H2SO4 = CH3COH + Cr2(SO4)3 + K2SO4 + H2O =>
3 C2H5OH + K2Cr2O7 + 4 H2SO4 = 3 CH3COH + Cr2(SO4)3 + K2SO4 + 7 H2O
CaCO3 + EDTA = Ca(EDTA)CO3 =>
CaCO3 + EDTA = Ca(EDTA)CO3
Na*H2O = NaHO + H =>
Na*H2O = NaHO + H
NH2C4H10 + H2SO4 = [NH2C4H12] + SO4 =>
NH2C4H10 + H2SO4 = [NH2C4H12] + SO4
K2O + Ba(OH)2 = KOH + BaO =>
K2O + Ba(OH)2 = 2 KOH + BaO
Na + MgCl2(aq) = NaCl(aq) + Mg(s) =>
2 Na + MgCl2(aq) = 2 NaCl(aq) + Mg(s)
NaI + NaNO2 + CH3COOH = NO + I2 + CH3COONa + H2O =>
2 NaI + 2 NaNO2 + 4 CH3COOH = 2 NO + I2 + 4 CH3COONa + 2 H2O
SO2 + Pb(NO3)2 = PbS + N2 + O2 =>
SO2 + Pb(NO3)2 = PbS + N2 + 4 O2
Na2(SO4)(aq) + HCl(s) = H2(SO4)(aq) + NaCl(s) =>
Na2(SO4)(aq) + 2 HCl(s) = H2(SO4)(aq) + 2 NaCl(s)
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
FeOH(NO3)2 + H2O = Fe(OH)3 + HNO3 =>
FeOH(NO3)2 + 2 H2O = Fe(OH)3 + 2 HNO3
CO(g) + H2 = C8H18(i) + H2O =>
8 CO(g) + 17 H2 = C8H18(i) + 8 H2O
Na2CO3 + P2O5 = Na3(PO4) + CO2 =>
3 Na2CO3 + P2O5 = 2 Na3(PO4) + 3 CO2
Na3[Al(OH)6] + H2SO4 = Na2SO4 + (AlOH)SO4 + H2O =>
2 Na3[Al(OH)6] + 5 H2SO4 = 3 Na2SO4 + 2(AlOH)SO4 + 10 H2O
NH4OCN = CO(NH2)2 =>
NH4OCN = CO(NH2)2
Mg + HCl(ac) = MgCl2 + H2 =>
Mg + 2 HCl(ac) = MgCl2 + H2
AB + CD = ABCD =>
AB + CD = ABCD
Ca3(PO4)2 + SiO2 + C = CaSiO3 + CO + P =>
Ca3(PO4)2 + 3 SiO2 + 5 C = 3 CaSiO3 + 5 CO + 2 P
Cs2 + Cl2 = CsCl =>
Cs2 + Cl2 = 2 CsCl
CH3CHCHCHCHCOOK(s) + O2(g) = CO2(g) + H2O(g) + K2CO3(g) =>
2 CH3CHCHCHCHCOOK(s) + 14 O2(g) = 11 CO2(g) + 7 H2O(g) + K2CO3(g)
Al2O3 + CuO = CuAl2O4 =>
Al2O3 + CuO = CuAl2O4
Mg + CaBr2 = MgBr2 + Ca =>
Mg + CaBr2 = MgBr2 + Ca
K2C2O4*H2O + FeCl3*6H2O = K3(Fe(C2O4)3)*3H2O + KCl + H2O =>
3 K2C2O4*H2O + FeCl3*6H2O = K3(Fe(C2O4)3)*3H2O + 3 KCl + 6 H2O
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
MnO2 + H{+} + Fe{2+} = Mn{2+} + H2O + Fe{3+} =>
MnO2 + 4 H{+} + 2 Fe{2+} = Mn{2+} + 2 H2O + 2 Fe{3+}
Al3 + O2 = Al2O3 =>
4 Al3 + 9 O2 = 6 Al2O3
Si(OH)4 + NaBr = SiBr4 + NaOH =>
Si(OH)4 + 4 NaBr = SiBr4 + 4 NaOH
(C6H5NH3) + AgNO3 = (C6H5NH3)NO3 + Ag =>
(C6H5NH3) + AgNO3 = (C6H5NH3)NO3 + Ag
(NH4)Cl + H2SO4 = (NH4)2SO4 + HCl =>
2(NH4)Cl + H2SO4 = (NH4)2SO4 + 2 HCl
Ca(OH)2 + (CH3COO)2Ca = CH4 + CaCO3 =>
Ca(OH)2 + (CH3COO)2Ca = 2 CH4 + 2 CaCO3
CaO(s) + N2O5(g) = Ca(NO3)2 =>
CaO(s) + N2O5(g) = Ca(NO3)2
NaCl + MgBr2 = NaBr + MgCl2 =>
2 NaCl + MgBr2 = 2 NaBr + MgCl2
Fe(s) + H2O4(s) = Fe3O4(s) + H2 =>
3 Fe(s) + H2O4(s) = Fe3O4(s) + H2
XeF2(s) + H2O(l) = XeO3(s) + Xe(g) + HF(g) =>
3 XeF2(s) + 3 H2O(l) = XeO3(s) + 2 Xe(g) + 6 HF(g)
Na + SiO3 + H2O = NaOH + SiO2 =>
2 Na + SiO3 + H2O = 2 NaOH + SiO2
Cu(OH)2 + NaNO3 = CuNO3 + Na(OH)2 =>
Cu(OH)2 + NaNO3 = CuNO3 + Na(OH)2
calciumhydroxide + carbondioxide = calciumcarbonate + water =>
Ca(OH)2 + CO2 = CaCO3 + H2O
Fe + Cu(ClO3)2 = Cu + Fe(ClO3)3 =>
2 Fe + 3 Cu(ClO3)2 = 3 Cu + 2 Fe(ClO3)3
KH(s) + H2O(l) = KOH + H2 =>
KH(s) + H2O(l) = KOH + H2
NNH3 + O2 = N2 + H2O =>
4 NNH3 + 3 O2 = 4 N2 + 6 H2O
CH3COO{-} + H{+} + O2 = CO2 + H2O =>
CH3COO{-} + H{+} + 2 O2 = 2 CO2 + 2 H2O
Na2(SO4)(aq) + HCl(s) = H2(SO4)(aq) + NaCl(s) =>
Na2(SO4)(aq) + 2 HCl(s) = H2(SO4)(aq) + 2 NaCl(s)
Sr(s) + H2O(l) = H2(g) + Sr(OH)2(aq) =>
Sr(s) + 2 H2O(l) = H2(g) + Sr(OH)2(aq)
Cr2O3 + KOH + O2 = K2CrO4 + H2O =>
2 Cr2O3 + 8 KOH + 3 O2 = 4 K2CrO4 + 4 H2O
HCl + N = H2 + NCl =>
2 HCl + 2 N = H2 + 2 NCl
As2S5 + NH3 + H2O2 = (NH4)3AsO4 + (NH4)2SO4 + H2O =>
As2S5 + 16 NH3 + 20 H2O2 = 2(NH4)3AsO4 + 5(NH4)2SO4 + 12 H2O
CaCe2 = Ca + Ce =>
CaCe2 = Ca + 2 Ce
MgCl2 + (NH4)(OH) = Mg(OH)2 + (NH4)Cl =>
MgCl2 + 2(NH4)(OH) = Mg(OH)2 + 2(NH4)Cl
K + P4 = K3P =>
12 K + P4 = 4 K3P
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