Flexible bond, 90mm (double bonding), Packs of ten 90mm flexible bonds to represent double bonding, Use to supplement your Unit building sets or for building custom models
Unit VSEPR Orbital White, Model electron orbital for use with the Unit system to show the theory of VSEPR and electron orbitals, Each pack contains 6 orbitals
Test Tube, Material: Made from high quality, heavy duty, Borosilicate Glass, Dimension: 150x16mm, rimless, Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks, capacity: 20 ml, PK48
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