| Chemical equations |
Romanian |
full lesson ( ) |
| Natural and synthetic dyes |
Romanian |
full lesson ( ) |
| Carbonyc Compounds |
Romanian |
partial lesson ( ) |
| The atom. Chemical Element. Chemical Symbol |
English |
full lesson ( ) |
| Halogenated derivatives |
English |
partial lesson ( ) |
| Experimental determination of physical properties. Determination of the boiling temperature for ethyl alcohol |
English |
demo ( ) |
| The Environmental Pollution. Soil Pollution: Determining the pH of Soil |
English |
demo ( ) |
| Oxides. The reaction of Basic Anhydrides with Acids |
English |
demo ( ) |
| Bases. Reaction of Neutralization |
English |
demo ( ) |
| Proton transfer reactions. The Strenght of Acids and Bases |
English |
demo ( ) |
| Instruments of the Chemistry Lab |
English |
demo ( ) |
| Ions and Molecules |
English |
demo ( ) |
| Types of Chemical Reactions |
English |
demo ( ) |
| Fats |
Russian |
full lesson ( ) |
| Alcohols |
Arabic |
demo ( ) |
| The Iron |
Bulgarian |
demo ( ) |
| Chemical equations - RLO1 |
Greek |
demo ( ) |
| Chemical equations - RLO2 |
Greek |
demo ( ) |
| Chemical equations - RLO3 |
Greek |
demo ( ) |
| Chemical equations - RLO4 |
Greek |
demo ( ) |