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2 CuO = 2 Cu + O2
Al2O3 + HCl = AlCl3 + H2O =>
Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O
Cr2O3(s) = Cr(s) + O2(g) =>
2 Cr2O3(s) = 4 Cr(s) + 3 O2(g)
C4H10(g) + O2(g) = CO2(g) + H2O(g) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(g)
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
Cu + AgNO3 = Ag + Cu(NO3)2 =>
Cu + 2 AgNO3 = 2 Ag + Cu(NO3)2
K2[HgI4] + KCN = K2[KI4] + HgCN =>
K2[HgI4] + KCN = K2[KI4] + HgCN
P4O6 + K2O = K3PO3 =>
P4O6 + 6 K2O = 4 K3PO3
Al(s) + O2 = Al2O3 =>
4 Al(s) + 3 O2 = 2 Al2O3
PH3 + HCLO3 = HCL + H3PO4 =>
3 PH3 + 4 HCLO3 = 4 HCL + 3 H3PO4
BaO + HCl = BaCl2 + H2O =>
BaO + 2 HCl = BaCl2 + H2O
HNO2 + NH3 = NH4NO2 =>
HNO2 + NH3 = NH4NO2
KHCO3(s) + HNO3(aq) = KNO3 + CO2 + H2O =>
KHCO3(s) + HNO3(aq) = KNO3 + CO2 + H2O
NaOH + S = Na2S + H2O + O2 =>
4 NaOH + 2 S = 2 Na2S + 2 H2O + O2
Na3PO4 + H2O = Na2HPO4 + NaOH =>
Na3PO4 + H2O = Na2HPO4 + NaOH
KOH + Al = K3AlO3 + H2 =>
6 KOH + 2 Al = 2 K3AlO3 + 3 H2
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
HCl + Zn = H2 + ZnCl2 =>
2 HCl + Zn = H2 + ZnCl2
Hb(s) + O2 = HbO2(s) =>
Hb(s) + O2 = HbO2(s)
Cr(s) + O2(g) = Cr2O3(s) =>
4 Cr(s) + 3 O2(g) = 2 Cr2O3(s)
Fe(OH)3 + H2SO4 = Fe2(SO4)3 + H2O =>
2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O
KMNO4 + NH3 = KNO3 + MNO2 + KOH + H20 =>
20 KMNO4 + 10 NH3 = 10 KNO3 + 20 MNO2 + 10 KOH + H20
Mg(OH)2 + HNO3 = Mg(NO3)2 + H2O =>
Mg(OH)2 + 2 HNO3 = Mg(NO3)2 + 2 H2O
KMNO4 + NH3 = KNO3 + MNO2 + KOH + H2O =>
8 KMNO4 + 3 NH3 = 3 KNO3 + 8 MNO2 + 5 KOH + 2 H2O
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
Al2S3(s) + H2O(l) = Al(OH)3(s) + H2S(g) =>
Al2S3(s) + 6 H2O(l) = 2 Al(OH)3(s) + 3 H2S(g)
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
Ca(NO3)2 + (NH4)3PO4 = NH4NO3 + Ca3(PO4)2 =>
3 Ca(NO3)2 + 2(NH4)3PO4 = 6 NH4NO3 + Ca3(PO4)2
NaCl + H2O = NaOH + Cl2 + H2 =>
2 NaCl + 2 H2O = 2 NaOH + Cl2 + H2
Zn(s) + H3C6H5O7(aq) = Zn3(C6H5O7)2(aq) + H2(g) =>
3 Zn(s) + 2 H3C6H5O7(aq) = Zn3(C6H5O7)2(aq) + 3 H2(g)
CH3CH3 + O2 = CO2 + H2O =>
2 CH3CH3 + 7 O2 = 4 CO2 + 6 H2O
IrCl3 + NaOH = Ir2O3 + HCl + NaCl =>
2 IrCl3 + 3 NaOH = Ir2O3 + 3 HCl + 3 NaCl
Au + KCN + O2 + H2O = KAu(CN)2 + KOH =>
4 Au + 8 KCN + O2 + 2 H2O = 4 KAu(CN)2 + 4 KOH
C5H10O + K2Cr2O7 + H2SO4 = C5H8O + Cr + H2O + K2SO4 =>
6 C5H10O + K2Cr2O7 + H2SO4 = 6 C5H8O + 2 Cr + 7 H2O + K2SO4
NaOH(aq) + H2SO4 = Na2SO4 + H2O =>
2 NaOH(aq) + H2SO4 = Na2SO4 + 2 H2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
CO2 + Ba(OH)2 = BaCO3 + H2O =>
CO2 + Ba(OH)2 = BaCO3 + H2O
Zn(C2H3O2)2(aq) + Na3PO4(aq) = NaC2H3O2(aq) + Zn3(PO4)2(s) =>
3 Zn(C2H3O2)2(aq) + 2 Na3PO4(aq) = 6 NaC2H3O2(aq) + Zn3(PO4)2(s)
CO2 + Ba(OH)2 = Ba(HCO3)2 =>
2 CO2 + Ba(OH)2 = Ba(HCO3)2
Ca + HNO3 = Ca(NO3)2 + H2 =>
Ca + 2 HNO3 = Ca(NO3)2 + H2
C5H10O + K2Cr2O7 + H2SO4 = C5H8O2 + Cr3 + H2O + K2SO4 =>
9 C5H10O + 3 K2Cr2O7 + 3 H2SO4 = 9 C5H8O2 + 2 Cr3 + 12 H2O + 3 K2SO4
K + O2 = K2O =>
4 K + O2 = 2 K2O
(NH4)2CO3(s) = NH3 + H2O + CO2(g) =>
(NH4)2CO3(s) = 2 NH3 + H2O + CO2(g)
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Al2S3(s) + H2O(l) = Al(OH)3(s) + H2S(g) =>
Al2S3(s) + 6 H2O(l) = 2 Al(OH)3(s) + 3 H2S(g)
Fe2O3(s) + CO(g) = Fe(s) + CO2(g) =>
Fe2O3(s) + 3 CO(g) = 2 Fe(s) + 3 CO2(g)
FE + Cl3 = FECl3 =>
FE + Cl3 = FECl3
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
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