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A complete collection of chemical equation symbols As long as it is a chemical equation symbol, it should be complete Sorry, I don't have any wealth
(1) reaction of elemental with oxygen
1. Combustion of magnesium in air: 2mg + O2 ignites 2MgO
2. Combustion of iron in oxygen: 3Fe + 2O2 ignites Fe3O4
3. Copper heated in air: 2Cu + O2 heated 2CuO
4. Combustion of aluminum in air: 4Al + 3O2 ignites 2al2o3
5. Combustion in hydrogen and air: 2h2 + O2 ignites 2H2O
6. Combustion of red phosphorus in air: 4P + 5o2 ignites 2p2o5
7. Sulfur powder burning in air: S + O2 ignites SO2
8. Full combustion of carbon in oxygen: C + O2 ignites CO2
9. Incomplete combustion of carbon in oxygen: 2C + O2 ignites 2CO
(2) Reaction of compound with oxygen:
10. Combustion of carbon monoxide in oxygen: 2CO + O2 ignites 2co2
11. Methane combustion in air: CH4 + 2O2 ignites CO2 + 2H2O
12. Alcohol burning in air: C2H5OH + 3O2 ignites 2co2 + 3H2O
2、 There are several decomposition reactions
13. Under the action of direct current, water is electrified by 2H2O, 2h2 ↑ + O2 ↑
14. Heating basic copper carbonate: Cu2 (OH) 2CO3 heating 2CuO + H2O + CO2 ↑
15. Heating potassium chlorate (with a small amount of manganese dioxide): 2kclo3 = = = = 2KCL + 3O2 ↑
16. Heating potassium permanganate: 2kmno4 heating k2mno4 + MnO2 + O2 ↑
17. Carbonic acid is not stable, but H2CO3 = = = H2O + CO2 ↑
18. High temperature calcined limestone: CaCO3, high temperature CaO + CO2 ↑
3、 There are several redox reactions
19. Reduction of CuO by hydrogen: H2 + CuO heating Cu + H2O
20. Reduction of CuO by charcoal: C + 2CuO, high temperature 2Cu + CO2 ↑
21. Reduction of iron oxide by coke: 3C + 2fe2o3, high temperature 4Fe + 3co2 ↑
22. Reduction of Fe3O4 by coke: 2C + Fe3O4, high temperature 3Fe + 2co2 ↑
23. Reduction of copper oxide by carbon monoxide: CO + CuO heating Cu + CO2
24. Reduction of iron oxide by carbon monoxide: 3Co + Fe2O3, high temperature 2Fe + 3co2
25. Reduction of Fe3O4 by carbon monoxide: 4Co + Fe3O4, high temperature 3Fe + 4co2
4、 The relationship among element, oxide, acid, alkali and salt
(1) Metal element + acid -------- Salt + hydrogen (displacement reaction)
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 = Al2 (SO4) 3 + 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 ↑
(2) Metal element + salt (solution) -- another metal + another salt
34. Reaction between iron and copper sulfate solution: Fe + CuSO4 = = = FeSO4 + Cu
35. Reaction between zinc and copper sulfate solution: Zn + CuSO4 = = = ZnSO4 + Cu
36. Reaction of copper with mercuric nitrate solution: Cu + Hg (NO3) 2 = = = Cu (NO3) 2 + Hg
(3) Alkaline oxide + acid -------- Salt + water
37. Reaction of iron oxide with dilute hydrochloric acid: Fe2O3 + 6hcl = = = 2fecl3 + 3H2O
38. Reaction of iron oxide with dilute sulfuric acid: Fe2O3 + 3h2so4 = = = Fe2 (SO4) 3 + 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
(4) Acid oxide + alkali salt + water
43. Deterioration of caustic soda exposed to air: 2naoh + CO2 = = = = Na2CO3 + H2O
44. Caustic soda absorbs sulfur dioxide: 2naoh + SO2 = = = = Na2SO3 + H2O
45. Caustic soda absorbs sulfur trioxide gas: 2naoh + SO3 = = = = Na2SO4 + H2O
46. Slaked lime metamorphoses in air: Ca (OH) 2 + CO2 = = = = CaCO3 ↓ + H2O
47. Absorption of sulfur dioxide by hydrated lime: Ca (OH) 2 + SO2 = = = = CaSO3 ↓ + H2O
(5) Acid + alkali salt + water
48. Hydrochloric acid reacts with caustic soda: 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 + Cu (OH) 2 = = = = CuCl2 + 2H2O
51. Reaction of hydrochloric acid and calcium hydroxide: 2HCl + Ca (OH) 2 = = = = CaCl2 + 2H2O
52. Reaction of hydrochloric acid and ferric hydroxide: 3hcl + Fe (OH) 3 = = = = FeCl3 + 3H2O
53. Aluminum hydroxide in the treatment of gastric acidosis: 3hcl + Al (OH) 3 = = = = 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 + Cu (OH) 2 = = = = CuSO4 + 2H2O
57. Reaction of sulfuric acid and ferric hydroxide: 3h2so4 + 2Fe (OH) 3 = = = Fe2 (SO4) 3 + 6H2O
58. Reaction of nitric acid and caustic soda: HNO3 + NaOH = = = = NaNO3 + H2O
(6) Acid + salt --- another acid + another salt
59. Reaction of marble with dilute hydrochloric acid: CaCO3 + 2HCl = = = CaCl2 + H2O + CO2 ↑
60. Reaction of sodium carbonate 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
(7) Alkali + salt --- another alkali + another salt
65. Sodium hydroxide and copper sulfate: 2naoh + CuSO4 = = = = Cu (OH) 2 ↓ + Na2SO4
66. Sodium hydroxide and ferric chloride: 3naoh + FeCl3 = = = = Fe (OH) 3 ↓ + 3nacl
67. Sodium hydroxide and magnesium chloride: 2naoh + MgCl2 = = = = Mg (OH) 2 ↓ + 2nacl
68. Sodium hydroxide and copper chloride: 2naoh + CuCl2 = = = = Cu (OH) 2 ↓ + 2nacl
69. Calcium hydroxide and sodium carbonate: Ca (OH) 2 + Na2CO3 = = = CaCO3 ↓ + 2naoh
(8) Salt + salt -- two new salts
70. Sodium chloride solution and silver nitrate solution: NaCl + AgNO3 = = = = AgCl ↓ + NaNO3
71. Sodium sulfate and barium chloride: Na2SO4 + BaCl2 = = = BaSO4 ↓ + 2nacl
5、 Other reactions:
72. CO2 dissolved in water: CO2 + H2O = = = H2CO3
73. Quicklime dissolves in water: Cao + H2O = = = Ca (OH) 2
74. Sodium oxide dissolves in water: Na2O + H2O = = = = 2naoh
75. Sulfur trioxide dissolved in water: SO3 + H2O = = = = H2SO4
76. Heating CuSO4? 5H2O, heating CuSO4 + 5H2O
77. Anhydrous copper sulfate as desiccant: CuSO4 + 5H2O = = = = CuSO4.5H2O
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