Molecular model construction kit 1, 10x molecular model kit

Molecular model construction kit 1 with 10x molecular model kit . 1 teacher stapled "molecular" 10x molecular model kit with the following content: Hydrogen atoms, white, univalent Chlorine atoms, green, univalent Oxygen atoms, bivalent Nitrogen atoms, trivalent Carbon atoms, black, tetravalent Spiral fittings, gray Student Guide "molecular" suche suche