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2 H3PO4 + 3 Ca = Ca3(PO4)2 + 3 H2
C6H5OH + H2SO4 = C6H6SO4 + H2O =>
C6H5OH + H2SO4 = C6H6SO4 + H2O
N2 + Li = Li3N =>
N2 + 6 Li = 2 Li3N
S + H2SO4 = H2O + SO2 =>
S + 2 H2SO4 = 2 H2O + 3 SO2
Mg(s) + O2(g) = MgO =>
2 Mg(s) + O2(g) = 2 MgO
H2SO4 + Al = Al(SO4) + H2 =>
H2SO4 + Al = Al(SO4) + H2
Al + Br2 = AlBr3 =>
2 Al + 3 Br2 = 2 AlBr3
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
H2SO4 + Al = Al2(SO4)3 + H2 =>
3 H2SO4 + 2 Al = Al2(SO4)3 + 3 H2
C5H11(g) + O2(g) = CO2(g) + H2O(g) =>
4 C5H11(g) + 31 O2(g) = 20 CO2(g) + 22 H2O(g)
Al + CuSO4 = AlO3 + CuS =>
4 Al + 3 CuSO4 = 4 AlO3 + 3 CuS
Cr2Ta2C3O2 = Cr3C2 + TaC + Ta2O5 + C =>
15 Cr2Ta2C3O2 = 10 Cr3C2 + 18 TaC + 6 Ta2O5 + 7 C
Pb(NO3)2(aq) + KI(aq) = KNO3(aq) + PbI2(s) =>
Pb(NO3)2(aq) + 2 KI(aq) = 2 KNO3(aq) + PbI2(s)
Al2(CO3)3 = Al2O3 + CO2 =>
Al2(CO3)3 = Al2O3 + 3 CO2
AlCl3 + NaOH = Na3Al(OH)6 + NaCl =>
AlCl3 + 6 NaOH = Na3Al(OH)6 + 3 NaCl
H2SO4 + Al = Al2(SO4) + H2 =>
H2SO4 + 2 Al = Al2(SO4) + H2
WO3 + H2 = W + H2O =>
WO3 + 3 H2 = W + 3 H2O
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
C3H6 + O2 = CO + H2O =>
C3H6 + 3 O2 = 3 CO + 3 H2O
(NH4)2SO4 + NaOH = NH3 + Na2SO4 + H2O =>
(NH4)2SO4 + 2 NaOH = 2 NH3 + Na2SO4 + 2 H2O
HF + KOH = KF + H2O =>
HF + KOH = KF + H2O
CH3COOH + Mg = Mg(CH3COO) + H2 =>
2 CH3COOH + 2 Mg = 2 Mg(CH3COO) + H2
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Cr(s) + Br2(g) = CrBr3(s) =>
2 Cr(s) + 3 Br2(g) = 2 CrBr3(s)
H + C = CH4 =>
4 H + C = CH4
Zr2CO2 = ZrO2 + ZrC =>
Zr2CO2 = ZrO2 + ZrC
H2SO4 + Al = Al2(SO4)3 + H2 =>
3 H2SO4 + 2 Al = Al2(SO4)3 + 3 H2
Fe + O2 = FeO =>
2 Fe + O2 = 2 FeO
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
H2S + Cl2 + H2O = H2SO4 + HCl =>
H2S + 4 Cl2 + 4 H2O = H2SO4 + 8 HCl
V2O5 + CaS = CaO + V2S5 =>
V2O5 + 5 CaS = 5 CaO + V2S5
Zr3C2O2 = ZrO2 + ZrC =>
Zr3C2O2 = ZrO2 + 2 ZrC
Fe(s) + Cl2(g) = FeCl =>
2 Fe(s) + Cl2(g) = 2 FeCl
AgNO3 = Ag + NO2 + O2 =>
2 AgNO3 = 2 Ag + 2 NO2 + O2
H2 + C = CH4 =>
2 H2 + C = CH4
K + H2So3 = K2So3 + H2 =>
2 K + H2So3 = K2So3 + H2
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
K + H2So3 = K2So3 + H2 =>
2 K + H2So3 = K2So3 + H2
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
CuSO4(aq) + Zn(s) = ZnSO4 + Cu(s) =>
CuSO4(aq) + Zn(s) = ZnSO4 + Cu(s)
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
SiO2(s) + C(s) = Si(s) + CO(g) =>
SiO2(s) + 2 C(s) = Si(s) + 2 CO(g)
BaCl2 + Na2So4 = BaSo4 + NaCl =>
BaCl2 + Na2So4 = BaSo4 + 2 NaCl
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
KCl(aq) + Pb(NO3)2(aq) = KNO3(aq) + PbCl2(s) =>
2 KCl(aq) + Pb(NO3)2(aq) = 2 KNO3(aq) + PbCl2(s)
VO2{+} + Zn + H{+} = H2O + V{2+} + Zn{2+} =>
2 VO2{+} + 3 Zn + 8 H{+} = 4 H2O + 2 V{2+} + 3 Zn{2+}
Zr2ScC2O2 = ZrC + ZrO2 + Sc2O3 + C =>
4 Zr2ScC2O2 = 7 ZrC + ZrO2 + 2 Sc2O3 + C
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