55502616
Vergleich von ionischen und kovalenten Verbindungen
In 11 interaktiven Aufgaben wird Wissen zu ionischen und kovalenten Verbindungen vermittelt und anschließend abgefragt.
Das Medium bietet H5P-Aufgaben an, die ohne zusätzliche Software verwendbar sind.
Durch interaktive Aufgabentypen wird das audiovisuelle und interaktive Lernen einfach.
Lernen macht jetzt Spaß!
Included Tasks
- I Ionische und kovalente Verbindungen - Lückentext
- II Eine feste ionische Verbindung - Interaktive Aufgaben
- III Eine feste molekulare kovalente Verbindung - Interaktive Aufgaben
- IV Eigenschaften - Gitterstruktur - Interaktive Aufgaben
- V Die Eigenschaften von ionischen Verbindungen - Interaktive Aufgaben
- VI Die Eigenschaften von kovalenten Verbindungen - Interaktive Aufgaben
- VII Eine Verbindung-Quiz - Interaktive Aufgaben
- VIII Kovalent oder ionisch? - Interaktive Aufgabe
- IX Löslichkeit in organischen Lösungsmitteln - Interaktive Aufgaben
- X Warum leiten feste ionische Verbindungen keinen Strom - Interaktive Aufgaben
- XI Kovalente Moleküle - Interaktive Aufgaben
Curriculum-centred and oriented towards educational standards
Matching
Aluminium II
The metal aluminium is growing in importance because of its specific properties and manifold application possibilities. This DVD deals with the industrial production of aluminium as a raw material, its processing and the manufacturing of alloys for the finished product. Starting with the raw material aluminium oxide the functioning of an electrolytic cell is demonstrated and explained. Alumina, white and powdery, is melted with great expenditure of energy, and by means of electrolysis converted into aluminium with a degree of purity of 99.9%. As aluminium oxide would not melt before a temperature of over 2,000°C is reached, the mineral cryolite is used as a solvent. The various alloys change the properties of aluminium and are produced according to precise formulations. The alloy is cast into blocks and bars that serve as primary material for processing plants. The responsible handling of resources underscores the importance of recycling. Aluminium is resilient and versatile.
Acids and Bases
We can find acids and bases in every supermarket, some of them in our food, others in cleaning agents. In everyday products, acids and bases as well as acidic and alkaline reacting salts have extremely different functions. In food, acids are either present or added as flavouring agents such as citric acid, tartaric acid and acetic acid, as antioxidants such as ascorbic acid or generally as acidifiers, sequestrants (citric acid and tartaric acid) and preservatives (acetic acid).
World of Crystals
What have salt, iron, diamonds and a snow flake in common? At first glance, not very much.