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How do I disinfect my piano: Instruction video
Playing the piano is and remains a very safe activity, especially if only you play your piano. Then additional measures are not necessary at all. If several people are playing the same instrument, it is recommended to disinfect in between. Pianos …
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Inorganic chemistry: Naming acids, bases, salts and oxides
This learning path deals with the naming of the four major inorganic compound classes: acids, bases, salts, and oxides.
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Interactive exercise (9)Teacher -
Inorganic Chemistry: Basic Concepts and Naming
Interactive learning path on the naming of inorganic compounds.
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Interactive exercise (4)Teacher