ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
- Function and Applications:
This molecular model construction kit for demonstration is appropriate to the chemistry classes for inorganics and organics.
- Benefits:
The kit contains all needed elements and connections for ball-and-stick- models of organic and inorganic standard molecules.
The models are easy to assemble and disassemble.
They are characterised by high quality and durability.
The kit is delivered in a plastic case, which enables a clear and comfortable storage.
Every part is extreme robust and colored according to international standards.
- Equipment and technical data:
The diameters of the balls are approx. 17 mm for hydrogen and approx. 23 mm for carbon and most of the other elements.
Content:
20 black balls (Carbon)
14 white balls (Hydrogen)
22 red balls (Oxygen)
10 blue balls (Nitrogen)
13 yellow balls (Sulphur)
7 orange balls (Phosphorus)
8 green balls (Halogen)
14 light-gray ball (Metal)
50 connectors, medium
36 connectors, long (flexible)
