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3 BH4 + 4 ClO3 = 4 Cl + 3 H2BO3 + 3 H2O
H2SO4 + C17H35COONa = C17H35COOH + Na2SO4 =>
H2SO4 + 2 C17H35COONa = 2 C17H35COOH + Na2SO4
C2 + O = CO2 =>
C2 + 4 O = 2 CO2
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
K2Cr2O7 + H2C2O4 + H2SO4 = K2SO4 + Cr2SO4 + CO2 + H2O =>
K2Cr2O7 + 5 H2C2O4 + 2 H2SO4 = K2SO4 + Cr2SO4 + 10 CO2 + 7 H2O
C + O = CO2 =>
C + 2 O = CO2
Fe(s) + O2 = Fe2O3(g) =>
4 Fe(s) + 3 O2 = 2 Fe2O3(g)
(NH4)3PO4 + Pb(NO3)4 = Pb3(PO4)4 + NH4NO3 =>
4(NH4)3PO4 + 3 Pb(NO3)4 = Pb3(PO4)4 + 12 NH4NO3
Cu(NH3)4 + CH3COOH + H2O = Cu(CH3COO)2 + NH3 + H3O =>
Cu(NH3)4 + 2 CH3COOH + 2 H2O = Cu(CH3COO)2 + 4 NH3 + 2 H3O
Fe2O3 + C = Fe + CO =>
Fe2O3 + 3 C = 2 Fe + 3 CO
H2O2 = H2 + O2 =>
H2O2 = H2 + O2
C2H5COOH + K2CO3 = KC2H5COO + CO2 + H20 =>
90 C2H5COOH + 40 K2CO3 = 80 KC2H5COO + 70 CO2 + 7 H20
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
C3H7N207 + O2 = CO2 + H2O + N2 =>
4 C3H7N207 + 19 O2 = 12 CO2 + 14 H2O + 414 N2
FeBr3(aq) + F2(g) = FeF3 + Br2 =>
2 FeBr3(aq) + 3 F2(g) = 2 FeF3 + 3 Br2
Zn + HNO3 = Zn(NO3)2 + H2 =>
Zn + 2 HNO3 = Zn(NO3)2 + H2
Na3PO4 + CuSO4 = NaSO4 + Cu3PO4 =>
Na3PO4 + 3 CuSO4 = 3 NaSO4 + Cu3PO4
Pb(NO3)2 + Na2SO4 = NaNO3 + PbSO4 =>
Pb(NO3)2 + Na2SO4 = 2 NaNO3 + PbSO4
Li2CO3 + Fe(SO4)2 = Li2SO4 + Fe(CO3)2 =>
2 Li2CO3 + Fe(SO4)2 = 2 Li2SO4 + Fe(CO3)2
HCl + CaO = CaCl2 + H2O =>
2 HCl + CaO = CaCl2 + H2O
AlBr3(aq) + Na2CO3(aq) = Al2(CO3)3(s) + NaBr(aq) =>
2 AlBr3(aq) + 3 Na2CO3(aq) = Al2(CO3)3(s) + 6 NaBr(aq)
HClO3 = ClO2 + HClO4 + H2O =>
3 HClO3 = 2 ClO2 + HClO4 + H2O
AlBr3(aq) + Na2CO3(aq) = Al2(CO3)3(aq) + NaBr(aq) =>
2 AlBr3(aq) + 3 Na2CO3(aq) = Al2(CO3)3(aq) + 6 NaBr(aq)
Na2S + K2Cr2O7 + H2SO4 = Na2SO4 + Cr2(SO4)3 + K2SO4 + H2O =>
3 Na2S + 4 K2Cr2O7 + 16 H2SO4 = 3 Na2SO4 + 4 Cr2(SO4)3 + 4 K2SO4 + 16 H2O
Cl2 + H2 = HCl =>
Cl2 + H2 = 2 HCl
HCOOH + Ch3OH = HCOOCh3 + H2O =>
HCOOH + Ch3OH = HCOOCh3 + H2O
Al2O3 + C = CO + Al =>
Al2O3 + 3 C = 3 CO + 2 Al
Al2O3 + H2O = H3AlO3 =>
Al2O3 + 3 H2O = 2 H3AlO3
ZN + HCl = ZNCl2 + H2 =>
ZN + 2 HCl = ZNCl2 + H2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Na(s) + O2(g) = Na2O(s) =>
4 Na(s) + O2(g) = 2 Na2O(s)
C2H4 + H2O = C2H5OH =>
C2H4 + H2O = C2H5OH
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
KMNO4 + KI + H2SO4 = MNSO4 + K2SO4 + H2O + I2 =>
2 KMNO4 + 10 KI + 8 H2SO4 = 2 MNSO4 + 6 K2SO4 + 8 H2O + 5 I2
HCN + KOH = KCN + H2O =>
HCN + KOH = KCN + H2O
NH4OH + HBr = H2O + NH4Br =>
NH4OH + HBr = H2O + NH4Br
C2H5COOH + K2CO3 = C2H5COOK + CO2 + H20 =>
90 C2H5COOH + 40 K2CO3 = 80 C2H5COOK + 70 CO2 + 7 H20
NaNO2 + H2SO4 = NO + H2O + NaNO3 + Na2SO4 =>
3 NaNO2 + H2SO4 = 2 NO + H2O + NaNO3 + Na2SO4
NaNO3 + Zn + NaOH = NH3 + Na2ZnO2 + H2O =>
NaNO3 + 4 Zn + 7 NaOH = NH3 + 4 Na2ZnO2 + 2 H2O
FeCl3 + AgNO3 = Fe(NO3)3 + AgCl =>
FeCl3 + 3 AgNO3 = Fe(NO3)3 + 3 AgCl
LiOH + H2SO4 = Li2SO4 + H2O =>
2 LiOH + H2SO4 = Li2SO4 + 2 H2O
K2O + H2O = KOH =>
K2O + H2O = 2 KOH
Cu + AgNO3 = Ag + Cu(NO3)2 =>
Cu + 2 AgNO3 = 2 Ag + Cu(NO3)2
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
HCl + Ca(OH)2 = CaCl2 + H2O =>
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
H2Po4 + NaOH = Na2Po4 + H2O =>
H2Po4 + 2 NaOH = Na2Po4 + 2 H2O
Pb(NO3)2 + NaOH = Pb(OH)2 + NaNO3 =>
Pb(NO3)2 + 2 NaOH = Pb(OH)2 + 2 NaNO3
Fe + Cu(NO3)2 = Fe(NO3)2 + Cu =>
Fe + Cu(NO3)2 = Fe(NO3)2 + Cu
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
MnSO4 + (NH4)2S2O8 + H2O = MnO2 + (NH4)2SO4 + H2SO4 =>
MnSO4 + (NH4)2S2O8 + 2 H2O = MnO2 + (NH4)2SO4 + 2 H2SO4
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