Hoi, in deze video met uitleg voor NaSk 2 gaan we het hebben over hard en zacht water. Wat is dat precies, wat zijn de nadelen van hard water en hoe kan je water ontharden? Dat en meer leer je op deze pagina.
2. Hard en zacht water
Gegeven door:
Henk de Beuker
Beschrijving Begrippen
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