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Cr2O3 + 2 Al = Al2O3 + 2 Cr
Al + CuCl2 = AlCl3 + Cu =>
2 Al + 3 CuCl2 = 2 AlCl3 + 3 Cu
Mg(s) + O2(g) = MgO(s) =>
2 Mg(s) + O2(g) = 2 MgO(s)
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
Cl2O + CrI3 + KOH = K2CrO4 + KIO4 + KCl + H2O =>
27 Cl2O + 4 CrI3 + 74 KOH = 4 K2CrO4 + 12 KIO4 + 54 KCl + 37 H2O
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
C3H6 + H2O = C3H7OH =>
C3H6 + H2O = C3H7OH
Zn(s) + CuSO4(aq) = ZnSO4(s) + Cu(s) =>
Zn(s) + CuSO4(aq) = ZnSO4(s) + Cu(s)
S + O2 = SO2 =>
S + O2 = SO2
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Pb(CO3)2 = PbO2 + CO2 =>
Pb(CO3)2 = PbO2 + 2 CO2
Cr2O3 + KCLO3 + KOH = K2CrO4 + KCL + H2O =>
Cr2O3 + KCLO3 + 4 KOH = 2 K2CrO4 + KCL + 2 H2O
Al2(So4)3 + Ba(No3)2 = BaSo4 + Al(No3)3 =>
Al2(So4)3 + 3 Ba(No3)2 = 3 BaSo4 + 2 Al(No3)3
Sb + HNO3 = Sb2O3 + NO + H2O =>
2 Sb + 2 HNO3 = Sb2O3 + 2 NO + H2O
Al + O = Al2O3 =>
2 Al + 3 O = Al2O3
H2S + NaOH = H2O + Na2S =>
H2S + 2 NaOH = 2 H2O + Na2S
Pb(CO3)2 = PbO2 + CO2 =>
Pb(CO3)2 = PbO2 + 2 CO2
Ca(NO3)2 = Ca + NO3 =>
Ca(NO3)2 = Ca + 2 NO3
Ca(NO3)2 + Na3PO4 = Ca3(PO4)2 + NaNO3 =>
3 Ca(NO3)2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaNO3
Ba(NO3)2 + K2SO4 = BaSO4 + KNO3 =>
Ba(NO3)2 + K2SO4 = BaSO4 + 2 KNO3
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Cr2O3 + Al = Al2O3 + Cr =>
Cr2O3 + 2 Al = Al2O3 + 2 Cr
Na2O + H2 = Na + H2O =>
Na2O + H2 = 2 Na + H2O
As + H2O + ClO3{-} + H{+} = H3AsO3 + HClO =>
4 As + 6 H2O + 3 ClO3{-} + 3 H{+} = 4 H3AsO3 + 3 HClO
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Na2O + H2 = Na + H2O =>
Na2O + H2 = 2 Na + H2O
Rb + O2 = Rb2O =>
4 Rb + O2 = 2 Rb2O
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
Fe + NaCl + H2O = FeCl + NaOH + H2 =>
2 Fe + 2 NaCl + 2 H2O = 2 FeCl + 2 NaOH + H2
Ca(OH)2 + CO2 = CaCO3 + H2O =>
Ca(OH)2 + CO2 = CaCO3 + H2O
CuO + Na2S = CuS + Na2O =>
CuO + Na2S = CuS + Na2O
HI + Na2S = NaI + H2S =>
2 HI + Na2S = 2 NaI + H2S
CH4 = C2H2 + H2 =>
2 CH4 = C2H2 + 3 H2
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
HgS + HCl + HNO3 = HgCl2 + S + NO + H2O =>
3 HgS + 6 HCl + 2 HNO3 = 3 HgCl2 + 3 S + 2 NO + 4 H2O
KOH + Cl2 = KClO + KCl + H2O =>
2 KOH + Cl2 = KClO + KCl + H2O
KNO2 + KClO3 = KCl + KNO3 =>
3 KNO2 + KClO3 = KCl + 3 KNO3
Ca(HCO3)2(s) + HBr(aq) = CaBr2(aq) + CO2(g) + H2O(l) =>
Ca(HCO3)2(s) + 2 HBr(aq) = CaBr2(aq) + 2 CO2(g) + 2 H2O(l)
H2S + O2 = SO2 + H20 =>
10 H2S + 10 O2 = 10 SO2 + H20
Fe(NO3)3 + NH3 + H2O = Fe(OH)3 + NH4NO3 =>
Fe(NO3)3 + 3 NH3 + 3 H2O = Fe(OH)3 + 3 NH4NO3
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
H2O2 + H2SO4 + KI = K2SO4 + H2O + I2 =>
H2O2 + H2SO4 + 2 KI = K2SO4 + 2 H2O + I2
Rb + H2O = RbOH + H2 =>
2 Rb + 2 H2O = 2 RbOH + H2
TiCl4 + H2O = TiO2 + HCl =>
TiCl4 + 2 H2O = TiO2 + 4 HCl
Zn2 + H2SO4 = ZnSO4 + SO2 + H2O =>
Zn2 + 4 H2SO4 = 2 ZnSO4 + 2 SO2 + 4 H2O
Si3N4 = Si + N2 =>
Si3N4 = 3 Si + 2 N2
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