(1) 4Na (s) + O2 (g) → 2Na2O (s)
(2) Na2O (s) + H2O (l) → 2NaOH (aq)
(3) K2O (s) + H2O (l) → 2KOH (aq)
(4) 2Mg (s) + O2 (g) → 2MgO (s)
(5) MgO (s) + H2O (l) →Mg(OH)2 (aq)
(6) 4Al (s) + 3O2 (g) → 2Al2O3 (s)
(7) Al2O3 (s) + 6HCl (aq) → 2AlCl3 (aq) + 3H2O (l)
(8) Al2O3 (s) + 2NaOH (aq) → 2NaAlO2 (aq) + H2O (l)
(9) 2Zn (s) + O2 (g) → 2ZnO (s)
(10) ZnO (s) + 2HCl (aq) → ZnCl2 (aq) + H2O (l)
(11) ZnO (s) + 2NaOH (aq) → Na2ZnO2 (aq) + H2O (l)
(12) 3Fe (s) + 2O2 (g) → Fe3O4 (s)
(13) 2Cu (s) + O2 (g) → 2CuO (s)
(14) 2K (s) + 2H2O (l) → 2KOH (aq) + H2 (g) + Heat
(15) 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g) + Heat
(16) Ca (s) + 2H2O (l) →Ca(OH)2 (aq) + H2 (g)
(17) Mg (s) + 2H2O (l) →Mg(OH)2 (aq) + H2 (g)
(18) Mg (s) + H2O (g) →MgO (s) + H2 (g)
(19) 2Al (s) + 3H2O (g) → Al2O3 (s) + 3H2 (g)
(20) Zn (s) + H2O (g) →ZnO (s) + H2 (g)
(21) 3Fe (s) + 4H2O (g) → Fe3O4 (s) + 4H2 (g)
(22) Metal + Dilute acid → Metal salt + Hydrogen
(23) 2Na (s) + 2HCl (aq) → 2NaCl (aq) + H2 (g)
(24) Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)
(25) 2Al (s) + 6HCl (aq) → 2AlCl3 (aq) + 3H2 (g)
(26) Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g)
(27) Fe (s) + 2HCl (aq) → FeCl2 (aq) + H2 (g)
(28) Cu (s) + HCl (aq) → No reaction
(29) 2Na (s) + H2SO4 (aq) → Na2SO4 (aq) + H2 (g)
(30) Mg (s) + H2SO4 (aq) → MgSO4 (aq) + H2 (g)
(31) 2Al (s) + 3H2SO4 (aq) →Al2(SO4)3 (aq) + 3H2 (g)
(32) Zn (s) + H2SO4 (aq) → ZnSO4 (aq) + H2 (g)
(33) Fe (s) + H2SO4 (aq) → FeSO4 (aq) + H2 (g)
(33) Cu (s) + H2SO4 (aq) → No reaction
(34) Mg (s) + 2HNO3 (aq) →Mg(NO3)2 (aq) + H2 (g)
(35) Mn (s) + 2HNO3 (aq) →Mn(NO3)2 (aq) + H2 (g)
(35) CuSO4 (aq) + Zn (s) → ZnSO4 (aq) + Cu (s)
(36) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(37) 2AgNO3 (aq) + Cu (s) →Cu(NO3)2 (aq) + 2Ag (s)
(37) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(38) FeSO4 (aq) + Zn (s) → ZnSO4 (aq) + Fe (s)
(39) 2Na (s) + Cl2 (g) → 2NaCl (s)
(40) Ca (s) + Cl2 (g) → CaCl2 (s)
(41) Mg (s) + Cl2 (g) → MgCl2 (s)
(42) 2Al (s) + 3Cl2 (g) → 2AlCl3 (s)
(43) Zn (s) + Cl2 (g) → ZnCl2 (s)
(44) 2Fe (s) + 3Cl2 (g) → 2FeCl3 (s)
(45) Cu (s) + Cl2 (g) → CuCl2 (s)
(46) 2Na (s) + H2 (g) → 2NaH (s)
(47) Ca (s) + H2 (g) → CaH2 (s)
(48) C (s) + O2 (g) → CO2 (g)
(49) CO2 (g) + H2O (l) → H2CO3 (aq)
(50) S (s) + O2 (g) → SO2 (g)
(52) SO2 (g) + H2O (l) → H2SO3 (aq)
(53) 2C (s) + O2 (g) → 2CO (g)
(54) 2H2 (g) + O2 (g) → 2H2O (l)
(55) 2NaBr (aq) + Cl2 (g) → 2NaCl (aq) + Br2 (aq)
(56) H2 (g) + Cl2 (g) → 2HCl (g)
(57) P4 (s) + 6Cl2 (g) → 4PCl3 (l)
(58) H2 (g) + S (l) → H2S (g)
(59) N2 (g) + 3H2 (g) →Fe 2NH3 (g)
(60) S (s) + O2 (g) → SO2 (g)
(61) Na + O2→
(62) Na2O+H2O →
(63) Fe (s) + H2O (g) →
(64) Cu(NO3)2 (aq) + Zn (s) →
(65) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(66) FeSO4 (aq) + Zn (s) → ZnSO4 (aq) + Fe (s)
(67) MgSO4 (aq) + Cu (s) → CuSO4 (aq) + Mg (s)
(68) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(69) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)
(70) Na + CI → Na+ [CI]– or NaCI
(71) K. + CI → K+ [CI]– or KCl
(72) Mg: – 2e–→ Mg2+
(73) 2 CI + 2e–→ Mg2+
(74) Mg + → Mg2+ or Mg2+ 2[CI] or MgCI2
(75) 2NaCl (l) → 2Na (s) + Cl2 (g)
(76) 2Na+ + 2e–→ 2Na
(77) 2Cl– – 2e–→ Cl2
(78) 2Al2O3 (l) →4Al (l) + 3O2 (g)
(79) Al3+ + 3e–→ Al
(80) 2O2– – 4e–→ O2
(81) ZnCO3 (s) →ZnO (s) + CO2 (g)
(82) 2ZnS (s) + 3O2 (g) →2ZnO (s) + 2SO2 (g)
(83) ZnO (s) + C (s) → Zn (s) + CO (g)
(84) 3MnO2 (s) + 4Al (s) → 3Mn (l) + 2Al2O3 (s) + Heat
(85) Fe2O3 (s) + 2Al (s) → 2Fe (l) + Al2O3 (s) + Heat
(86) 2HgS (s) + 3O2 (g) → 2HgO (s) + 2SO2 (g)
(87) 2HgO (s) Heat/(Reduction) → 2Hg (l) + O2 (g)
(88) 2Cu2S (s) + 3O2 (g) → 2Cu2O (s) + 2SO2 (g)
(89) 2Cu2O (s) + Cu2S (s) → 6Cu (s) + SO2 (g)
(90) Cu2+ + 2e–→ Cu
(91) Cu – 2e–→ Cu2+
(92) Metal carbonate → Metal oxide + Carbon dioxide
(93) Metal oxide + Carbon → Metal + Carbon monoxide