| Title |
Product |
| Hardness, colour, magnetisability, water solubility |
P1022100 |
| Synthesis of water |
P1028500 |
| Properties of hydrogen |
P1028400 |
| Degradation of water by reducing agents |
P1028300 |
| Electrolysis of water |
P1028200 |
| Water, an oxide |
P1028100 |
| Hardness of water |
P1027900 |
| Test for water |
P1028000 |
| Water purification with active charcoal |
P1027700 |
| Water treatment in sewage treatment plants |
P1027800 |
| Mode of operation of an aeration tank (sewage treatmentplant) |
P1027600 |
| Solubility of salts in water - comparison with the solubili-ty of gases in water |
P1027500 |
| Solutions, colloids, suspensions |
P1027400 |
| Solubility of gases in water |
P1027300 |
| Dissolved components in different waters |
P1027200 |
| Water content of natural substances |
P1027100 |
| Reduction of lead oxide |
P1027000 |
| Reduction of copper oxide |
P1026900 |
| Reduction of silver oxide |
P1026800 |
| Rusting- "slow combustion" |
P1026700 |
| The candle flame |
P1026600 |
| Structure and mode of operation of a Bunsen burner |
P1026500 |
| Model of a fire extinguisher |
P1026400 |
| Carbon dioxide, preparation and properties |
P1026300 |
| Nitrogen, preparation and properties |
P1026200 |
| Reactions in pure oxygen |
P1026000 |
| Quantitative analysis of oxides |
P1026100 |
| Analysis of air |
P1025800 |
| Properties of oxygen |
P1025900 |
| Air, a mixture of substances |
P1025700 |
| The importance of air for combustion processes |
P1025600 |
| Oxidation of non-metals |
P1025500 |
| Oxygen, cause of oxidation |
P1025400 |
| Oxidation of metals |
P1025200 |
| Factors determining the reaction behaviour of metals |
P1025300 |
| Crystallisation |
P1025100 |
| Dissolution of salts |
P1025000 |
| Dissolution processes in liquids |
P1024900 |
| Diffusion |
P1024700 |
| Brownian molecular motion |
P1024800 |
| Volume change during the condensation of a gas |
P1024600 |
| Volume change during the vaporisation of a gas |
P1024500 |
| Volume contraction of liquids |
P1024300 |
| Comparison of the volume contraction of liquids and gases |
P1024400 |
| Test for different salts (flame coloration) |
P1024200 |
| Test for nitrogen |
P1024100 |
| Test for carbon dioxide |
P1024000 |
| Test for hydrogen |
P1023900 |
| Test for oxygen |
P1023800 |
| Reaction of copper and sulphur |
P1023700 |
| Comparison of a physical process and a chemical reaction |
P1023600 |
| Chromatography |
P1023500 |
| Extraction |
P1023400 |
| Distillation |
P1023200 |
| Separation |
P1023300 |
| Crystallisation |
P1023100 |
| Filtration, magnetic separation |
P1023000 |
| Evaporation |
P1022900 |
| Elutriation |
P1022800 |
| Liquid mixtures of substances |
P1022700 |
| Properties of mixtures of substances |
P1022600 |
| Density determination |
P1022500 |
| Sublimation |
P1022400 |
| Boiling point |
P1022300 |
| Combustibility, melting point |
P1022200 |
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