Summary and phenomenon of the third chemical equation

One. The reaction of matter with oxygen:

Elemental and oxygen reaction:

1. Magnesium burns in the air: 2mg + o2 ignites 2mgo

2. Iron burns in oxygen: 3fe + 2o2 igniting fe3o4

3. Copper is heated in the air: 2cu + o2 heating 2cuo

4. Aluminum burns in the air: 4al + 3o2 Ignite 2al2o3

5. Combustion in air in hydrogen: 2h2 + o2 igniting 2h2o

6. Red phosphorus burns in the air: 4p + 5o2 ignites 2p2o5

7. Sulphur powder burns in the air: s + o2 ignites so2

8. Carbon burns fully in oxygen: c + o2 ignites co2

9. Carbon does not burn fully in oxygen: 2c + o2 ignites 2co

The reaction of the compound with oxygen:

10. Carbon monoxide burns in oxygen: 2co + o2 ignites 2co2

11. Methane burns in the air: ch4 + 2o2 ignites co2 + 2h2o

12. Alcohol burns in the air: c2h5oh + 3o2 Ignite 2co2 + 3h2o

two. Several decomposition reactions:

13. Water decomposes under the action of direct current: 2h2o energization 2h2↑+ o2 ↑

14. Heating basic copper carbonate: cu22co3 heating 2cuo + h2o + co2↑

15. Heat potassium chlorate: 2kclo3 ==== 2kcl + 3o2 ↑

16. Heating potassium permanganate: 2kmno4 heating k2mno4 + mno2 + o2↑

17. Carbonic acid is unstable and decomposes: h2co3 === h2o + co2↑

18. High temperature calcined limestone: caco3 high temperature cao + co2↑

three. Several redox reactions:

19. Hydrogen reduction copper oxide: h2 + cuo heating cu + h2o

20. Charcoal reduced copper oxide: c+ 2cuo high temperature 2cu + co2↑

21. Coke reduction iron oxide: 3c+ 2fe2o3 high temperature 4fe + 3co2↑

22. Coke reduction of ferroferric oxide: 2c+ fe3o4 high temperature 3fe + 2co2↑

23. Carbon monoxide reduction copper oxide: co+ cuo heating cu + co2

24. Carbon monoxide reduced iron oxide: 3co+ fe2o3 high temperature 2fe + 3co2

25. Carbon monoxide reduction of ferroferric oxide: 4co+ fe3o4 high temperature 3fe + 4co2

four. The relationship between elemental, oxide, acid, alkali and salt

Metal element + acid --- salt + hydrogen

26. Zinc and dilute sulfuric acid zn + h2so4 = znso4 + h2↑

27. Iron and dilute sulfuric acid fe + h2so4 = feso4 + h2↑

28. Magnesium and dilute sulfuric acid mg + h2so4 = mgso4 + h2↑

29. Aluminum and dilute sulfuric acid 2al +3h2so4 = al23 +3h2↑

30. Zinc and dilute hydrochloric acid zn + 2hcl === zncl2 + h2↑

31. Iron and dilute hydrochloric acid fe + 2hcl === fecl2 + h2↑

32. Magnesium and dilute hydrochloric acid mg+ 2hcl === mgcl2 + h2↑

33. Aluminum and dilute hydrochloric acid 2al + 6hcl == 2alcl3 + 3h2↑

Metal element + salt ------- another metal + another salt

34. Reaction of iron and copper sulphate solution: fe + cuso4 === feso4 + cu

35. Reaction of zinc and copper sulphate solution: zn + cuso4 === znso4 + cu

36. Reaction of copper with mercury nitrate solution: cu + hg2 === cu2 + hg

Alkaline oxide + acid --- salt + water

37. Reaction of iron oxide with dilute hydrochloric acid: fe2o3 + 6hcl === 2fecl3 + 3h2o

38. Iron oxide and dilute sulfuric acid reaction: fe2o3 + 3h2so4 === fe23 + 3h2o

39. Reaction of copper oxide with dilute hydrochloric acid: cuo + 2hcl ==== cucl2 + h2o

40. Reaction of copper oxide with dilute sulfuric acid: cuo + h2so4 ==== cuso4 + h2o

41. Reaction of Magnesium Oxide with Dilute Sulfuric Acid: mgo + h2so4 ==== mgso4 + h2o

42. Reaction of calcium oxide with dilute hydrochloric acid: cao + 2hcl ==== cacl2 + h2o

Acid oxide + base --- salt + water

43. Caustic soda exposure to air deterioration: 2naoh + co2 ==== na2co3 + h2o

44. Caustic soda absorbs sulfur dioxide gas: 2naoh + so2 ==== na2so3 + h2o

45. Caustic soda absorption of sulfur trioxide gas: 2naoh + so3 ==== na2so4 + h2o

46. Slaked lime is spoiled in the air: ca2 + co2 ==== caco3 ↓+ h2o

47. Slaked lime absorbs sulfur dioxide: ca2 + so2 ==== caso3 ↓+ h2o

Acid + base --- salt + water

48. Hydrochloric acid and caustic acid react: hcl + naoh ==== nacl +h2o

49. Reaction of hydrochloric acid and potassium hydroxide: hcl + koh ==== kcl +h2o

50. Reaction of hydrochloric acid and copper hydroxide: 2hcl + cu2 ==== cucl2 + 2h2o

51. Reaction of hydrochloric acid and calcium hydroxide: 2hcl + ca2 ==== cacl2 + 2h2o

52. Reaction between hydrochloric acid and ferric hydroxide: 3hcl + fe3 ==== fecl3 + 3h2o

53. Aluminum hydroxide drug treatment of hyperacidity: 3hcl + al3 ==== alcl3 + 3h2o

54. Reaction of sulfuric acid and caustic soda: h2so4 + 2naoh ==== na2so4 + 2h2o

55. Reaction of sulfuric acid and potassium hydroxide: h2so4 +

2koh ==== k2so4 + 2h2o

56. Reaction of sulfuric acid and copper hydroxide: h2so4 + cu2 ==== cuso4 + 2h2o

57. Reaction of sulfuric acid and ferric hydroxide: 3h2so4 + 2fe3==== fe23 + 6h2o

58. Reaction of nitric acid and caustic soda: hno3+ naoh ==== nano3 +h2o

Acid + salt --------- another acid + another salt

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↑

61. Reaction of magnesium carbonate with dilute hydrochloric acid: mgco3 + 2hcl === mgcl2 + h2o + co2↑

62. Reaction of hydrochloric acid and silver nitrate solution: hcl + agno3 === agcl↓ + hno3

63. Reaction of sulfuric acid and sodium carbonate: na2co3 + h2so4 === na2so4 + h2o + co2↑

64. Reaction of sulfuric acid and barium chloride solution: h2so4 + bacl2 ==== baso4 ↓+ 2hcl

Alkali + salt -------- another base + another salt

65. Sodium hydroxide and copper sulfate: 2naoh + cuso4 ==== cu2↓ + na2so4

66. Sodium hydroxide and ferric chloride: 3naoh + fecl3 ==== fe3↓ + 3nacl

67. Sodium hydroxide and magnesium chloride: 2naoh + mgcl2 ==== mg2↓ + 2nacl

68. Sodium hydroxide and copper chloride: 2naoh + cucl2 ==== cu2↓ + 2nacl

69. Calcium hydroxide and sodium carbonate: ca2 + na2co3 === caco3↓+ 2naoh

Salt + salt ---- two new salts

70. Sodium chloride solution and silver nitrate solution: nacl + agno3 ==== agcl↓ + nano3

71. Sodium sulfate and cesium chloride: na2so4 + bacl2 ==== baso4↓ + 2nacl

Fives. Other reactions:

72. Carbon dioxide dissolved in water: co2 + h2o === h2co3

73. Quicklime dissolved in water: cao + h2o === ca2

74. Sodium oxide dissolved in water: na2o + h2o ==== 2naoh

75. Sulfur trioxide dissolved in water: so3 + h2o ==== h2so4

76. Copper sulfate crystals are thermally decomposed: cuo45h2o heating cuo4 + 5h2o

77. Anhydrous copper sulfate as a desiccant: cuo4 + 5h2o ==== cuso45h2o