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Grade 8
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Chemistry
Chemistry · Grade 8
32/32 weeks ready · I.R. Asqarov, K. G‘opirov, N.X. To‘xtaboyev. Chemistry Grade 8, revised 4th edition. “Yangiyul Poligraph Service”, Tashkent, 2019
Chapter I
Review of the main concepts of the Grade 7 chemistry course
1
Review of Grade 7: atoms, moles and classes of compounds
1. Basic chemical concepts and laws
2. Main classes of inorganic compounds
Quiz (8)
Homework
Chapter II
The periodic law and the periodic system of elements. Atomic structure
2
First classification of elements and natural families
3. First classification of chemical elements
4. Natural families of chemical elements
Quiz (8)
Homework
3
The periodic law
5. The periodic law of chemical elements
Quiz (8)
Homework
4
The periodic system: periods and groups
6. The periodic system of chemical elements
Quiz (8)
Homework
5
Composition of the nucleus. Isotopes
7. Composition of the atomic nucleus
8. Isotopes. Isobars
Quiz (8)
Homework
6
Electron shells and energy sublevels
9. Structure of the electron shells of the atom
10. Energy sublevels
Quiz (8)
Homework
7
Atomic structure of small- and large-period elements
11. Atomic structure of the elements of small periods
12. Atomic structure of the elements of large periods
Quiz (8)
Homework
8
Describing elements by their place in the periodic system
13. Describing elements by their place in the periodic system and atomic structure. Importance of the periodic law
Quiz (8)
Homework
Chapter III
Chemical bonds
9
Electronegativity. The covalent bond
14. Relative electronegativity of chemical elements
15. Types of chemical bond. Polar and nonpolar covalent bond
Quiz (8)
Homework
10
The ionic bond. Crystal lattices
16. Ionic bond
17. Crystal lattices
Quiz (8)
Homework
11
Oxidation state
18. Oxidation state of elements
Quiz (8)
Homework
12
Redox reactions
19. Redox reactions
20. Writing equations of redox reactions
Quiz (8)
Homework
Chapter IV
Nonmetals
13
Nonmetals. The halogens
21. General properties of nonmetals
22. Halogens: place in the periodic system and atomic structure
Quiz (8)
Homework
14
Chlorine
23. Chlorine
Quiz (8)
Homework
15
Hydrogen chloride
24. Hydrogen chloride
Quiz (8)
Homework
16
Avogadro’s law. Molar volume
25. Avogadro’s law. Molar volume
Quiz (8)
Homework
17
The law of equivalents
26. The law of equivalents
Quiz (8)
Homework
18
Hydrochloric acid. Fluorine, bromine, iodine
27. Hydrochloric acid
28. Fluorine, bromine, iodine
Quiz (8)
Homework
19
Practical work 1: the halogens
29. Practical work 1. Experimental problems on “Halogens”
Quiz (8)
Homework
Chapter V
General characteristics of the elements of main group VI
20
The oxygen subgroup. Hydrogen sulfide
30. Elements of the oxygen subgroup
31. Hydrogen compounds of sulfur
Quiz (8)
Homework
21
Sulfur oxides. Sulfuric acid
32. Oxygen compounds of sulfur
33. Sulfuric acid
Quiz (8)
Homework
22
Reaction rate. Chemical equilibrium
34. Rate of chemical reactions
35. Chemical equilibrium
Quiz (8)
Homework
23
Sulfuric acid industry. Practical work 2
36. Industrial production of sulfuric acid
37. Practical work 2. Experimental problems on “Sulfur”
Quiz (8)
Homework
Chapter VI
The nitrogen subgroup
24
Nitrogen. Ammonia and ammonium salts
38. Nitrogen
39. Hydrogen compounds of nitrogen
Quiz (8)
Homework
25
Nitrogen oxides. Nitric acid
40. Oxygen compounds of nitrogen
41. Nitric acid
Quiz (8)
Homework
26
Practical work 3: ammonia
42. Practical work 3. Preparing ammonia and experiments with it
Quiz (8)
Homework
27
Phosphorus and its oxygen compounds
43. Phosphorus
44. Oxygen compounds of phosphorus
Quiz (8)
Homework
28
Practical work 4: the nitrogen subgroup
45. Practical work 4. Experimental problems on the nitrogen subgroup
Quiz (8)
Homework
29
Mineral fertilizers
46. Mineral fertilizers
47. The most important mineral fertilizers
Quiz (8)
Homework
30
Biogenic elements
48. Biogenic elements and their importance in living organisms
Quiz (8)
Homework
31
Practical work 5: identifying mineral fertilizers
49. Practical work 5. Identifying mineral fertilizers
Quiz (8)
Homework
Laboratory sessions
32
Laboratory sessions
50. Laboratory sessions (1–10)
Quiz (8)
Homework
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