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</html><description>Koolstof is een van de belangrijkste elementen in het periodiek systeem, omdat het veel door mensen wordt gebruikt. Sterker nog, elke keer dat je inademt, adem je koolstofdioxide uit. Het wordt ook aangetroffen in alle gassen die vrijkomen door automotoren. Lees meer over deze chemische stof, de kenmerken, eigenschappen en toepassingen ervan. Wat is koolstof? ... Lees verder</description></oembed>
