Somebody tell me something about the chemical equation of junior high school chemistry! ! ! ! ! ! ! ! ! Thank you.

1. Magnesium burns in air: 2Mg+O2 ignites 2MgO.

2. Iron burns in oxygen: 3Fe+2O2 ignites Fe3O4.

3. Copper heating in air: 2Cu+O2 heating 2CuO.

4. Aluminum burns in air: 4Al+3O2 ignites 2Al2O3.

5. Combustion in hydrogen and air: 2H2+O2 ignites 2H2O.

6. Red phosphorus burns in air: 4P+5O2 ignites 2P2O5.

7. Sulfur powder burns in air: S+O2 ignites SO2.

8. Complete combustion of carbon in oxygen: C+O2 ignites CO2.

9. Incomplete combustion of carbon in oxygen: 2C+O2 ignites 2CO.

10. Carbon monoxide burns in oxygen: 2CO+O2 ignites 2CO2.

1 1. Methane burns in air: CH4+2O2 ignites CO2+2H2O.

12. Alcohol burns in air: C2H5OH+3O2 ignites 2CO2+3H2O.

13. Decomposition of water under direct current: 2H2O charged 2H2 =+O2 =

14. heating basic copper carbonate: Cu2(OH)2CO3 heating 2cuo+H2O+CO2 =

15. heating potassium chlorate (containing a small amount of manganese dioxide): 2kClO3 = = = 2kCl+3o2 =

16. heating potassium permanganate: 2KMnO4 heating k2mno4+MnO2+O2 =

17. Carbonic acid is unstable and decomposed: H2CO3 === H2O+CO2↑ =

18. high temperature calcined limestone: CaCO3, high temperature CaO+CO2↑ =

19. Reduction of copper oxide by hydrogen: H2+ copper oxide heats copper +H2O.

20. Reduction of copper oxide with charcoal: 2Cu, high temperature 2Cu+CO2↑ =

2 1. Iron oxide reduction by coke: 3C+ 2Fe2O3, high temperature 4Fe+3CO2↑ =

22. Reducing Fe3O4 with coke at high temperature: 2c+Fe3O4, 3Fe+2 CO2 =

23. Reduction of copper oxide by carbon monoxide: CO+ CuO heats Cu+CO2.

24. Reduction of iron oxide by carbon monoxide: 3CO+ Fe2O3, high temperature, 2Fe+3CO2.

25. Reduction of ferroferric oxide with carbon monoxide: 4CO+ Fe3O4, high temperature 3Fe+4CO2.

26. Zinc and dilute sulfuric acid Zn+H2SO4 = ZnSO4+H2 Write

27. Iron and dilute sulfuric acid Fe+H2SO4 = FeSO4+H2 Write

28. magnesium and dilute sulfuric acid mg+H2SO4 = mgso4+H2 write

29. Aluminum and dilute sulfuric acid 2Al +3H2SO4 = Al2(SO4)3 +3H2↑ 3+3H2+3H2 write 3+3H2.

30. Zinc and dilute hydrochloric acid Zn+Zn+2HCl === ZnCl2+H2↑ =

3 1. Iron and dilute hydrochloric acid Fe+2 Fe+2HCl === FeCl2+H2↑ = H2 =

32. Magnesium and dilute hydrochloric acid Mg Mg+ 2HCl === MgCl2+H2↑ =

33. Aluminum and dilute hydrochloric acid 2Al+6HCl = = 2AlCl3+3H2 Write

34. The reaction between iron and copper sulfate solution: Fe+CuSO4 = = FeSO4+Cu.

35. The reaction between zinc and copper sulfate solution: Zn+CuSO4 = = ZnSO4+Cu.

36. The reaction between copper and mercury nitrate solution: Cu+Hg (NO3) 2 = = Cu (NO3) 2+Hg.

37. The reaction of iron oxide with dilute hydrochloric acid: Fe2O3+6HCl === 2FeCl3+3H2o+3H2O.

38. Reaction of iron oxide with dilute sulfuric acid: Fe2O3+3H2SO4 = = Fe2 (SO4) 3+3H2O+3H2O.

39. Reaction of copper oxide with dilute hydrochloric acid: CuO+2hcl = = = CuCl2+H2O.

40. The reaction between copper oxide and dilute sulfuric acid: CuO+H2SO4 = = = CuSO4+H2O.

4 1. The reaction of magnesium oxide with dilute sulfuric acid: MgO+H2SO4 = = = MgSO4+H2O.

42. The reaction of calcium oxide with dilute hydrochloric acid: Cao+2 HCl = = = CaCl2+H2O.

43. Caustic sodium will deteriorate when exposed to air: 2NaOH+CO2 ==== Na2CO3+H2O.

Xx。 Caustic sodium absorbs sulfur dioxide gas: 2 NaOH+SO2 = = = Na2SO3+H2O.

45. Caustic sodium absorbs sulfur trioxide gas: 2NaOH+SO3 ==== Na2SO4+H2O.

46. The slaked lime deteriorates in the air: Ca (OH) 2+CO2 = = = CaCO3 ↓+H2O+H2O.

47. The slaked lime absorbs sulfur dioxide: ca (oh) 2+SO2 = = = caso3 ↓+H2O+H2O.

48. Reaction of hydrochloric acid with caustic soda: HCl+NaOH = = = NaCl+H2O.

49. Reaction of hydrochloric acid and potassium hydroxide: HCl+KOH = = = KCl+H2O.

50. The reaction between hydrochloric acid and copper hydroxide: 2HCl+Cu (OH) 2 = = CuCl2+2H2O.

5 1. The reaction between hydrochloric acid and calcium hydroxide: 2hcl+Ca (OH) 2 = = CaCl2+2h2o.

52. The reaction between hydrochloric acid and iron hydroxide: 3HCl+Fe (OH) 3 = = = FeCl 3+3H2O.

53. Aluminum hydroxide for the treatment of hyperacidity: 3HCl+Al (OH) 3 = = = AlCl3+3H2O.

54. Reaction between sulfuric acid and caustic soda: H2SO4+2NaOH = = = Na2SO4+2H2O.

55. The reaction between sulfuric acid and potassium hydroxide: H2SO4+2koh = = = K2SO4+2h2o.

56. The reaction between sulfuric acid and copper hydroxide: H2SO4+Cu (OH) 2 = = CuSO4+2H2O.

57. The reaction between sulfuric acid and iron hydroxide: 3H2SO4+2Fe (OH) 3 = = Fe2 (SO4) 3+6H2O.

58. The reaction between nitric acid and caustic soda: nitric acid+sodium hydroxide = = = sodium nitrite+H2O H2O.

59. marble reacts with dilute hydrochloric acid: CaCO3+2hcl = = CaCl2+H2O+CO2 =

60. Sodium carbonate reacts with dilute hydrochloric acid: Na2CO3+2HCl = = 2NaCl+H2O+CO2 =

6 1. Reaction of magnesium carbonate with dilute hydrochloric acid: MgCO3+2HCl = = MgCl2+H2O+CO2 =

62. Reaction between hydrochloric acid and silver nitrate solution: HCl+AgNO3 === AgCl↓+HNO3.

63. The reaction of sulfuric acid and sodium carbonate: Na2CO3+H2SO4 = = Na2SO4+H2O+CO2 =

64. The reaction between sulfuric acid and barium chloride solution: H2SO4+bacl2 = = = baso4 ↓+2hcl.

65. Sodium hydroxide and copper sulfate: 2 NaOH+CuSO4 = = Cu (OH) 2 ↓+Na2SO4.

66. Sodium hydroxide and ferric chloride: 3 NaOH+FeCl 3 = = Fe (OH) 3 ↓+3 NaCl.

67. Sodium hydroxide and magnesium chloride: 2 NaOH+MgCl2 = = mg (OH) 2 ↓+2 NaCl.

68. Sodium hydroxide and copper chloride: 2 NaOH+CuCl2 = = Cu (OH) 2 ↓+2 NaCl.

69. Calcium hydroxide and sodium carbonate: Ca (OH) 2+Na2CO3 = = CaCO3 ↓+2NaOH.

70. Sodium chloride solution and silver nitrate solution: NaCl+AgNO3 = = = AgCl ↓+Nano3.

7 1. sodium sulfate and barium chloride: Na2SO4+bacl2 = = = baso4 ↓+2 NaCl.

72. Carbon dioxide is soluble in water: CO2+H2O === H2CO3.

73. Quicklime is soluble in water: CaO+H2O === Ca(OH)2.

74. Sodium oxide is soluble in water: Na2O+H2O = = = 2 NaOH.

75. Sulfur trioxide is soluble in water: SO3+H2O = = = H2SO4.