Calendar-and-mathematical planning of the elective «Chemistry for eight-from boys»

№

Topic name

number of hours

1

Introduction. Acquaintance with aims and tanks of course, his structure.

1

2

Cleansubstances and mixtures. Methods cleaning of mixtures: filtration, defending, action by a magnet, distillation, evaporation.

The phenomena are physical and chemical.

Simple and difficult substances.

1

3

Chemical formula of substance. Valence. Formulation of formulas by valence.

1

4

Calculations by chemical formulas. Relative molecular mass. A relation of the mass of elements is in a difficult substance. Mass stakes of elements are in a difficult substance.

1

5

Amount of substance. Molar mass. Molar volume. Relative closeness of gases. By volume relations of gases.

1

6

Chemical reactions. Types of chemical reactions: connection, decomposition, substitution, exchange.Thermochemical equalizations of reactions.

1

7

Calculationsby chemicalequations. Calculations by thermochemical equalizations.

1

8

Solutions. Solubility. Methods of expression of composition of solutions.

1

9

Different actions with solutions: dilution, evaporation, mixing, concentration. Crystallohydrates.

Practical work №1 “Preparation of solutions”

1

10

Basic classes of inorganic connections. Oxides. Classification. Nomenclature. Methods of receipt. Properties of oxides.

1

11

Basic classes of inorganic connections. Grounds: lyes and insoluble grounds. Classification. Nomenclature. Methods of receipt. Properties of lyes and insoluble grounds.

1

12

Basic classes of inorganic connections. Acids. Classification. Nomenclature. Methods of receipt. Properties of acids.

1

13

Basic classes of inorganic connections. Salts. Classification. Nomenclature. Methods of receipt. Properties o salts.

1

14

Practical work № 2 “ Decision of experimental tasks”

Decision of combined tasks.

1

15

Genetic connection between the basic classes of inorganic connections.

1

16-17

Concluding lesson. Project of defence.

2