5-Pack Chemical-Resistant Polypropylene Stoppers, 29/32 Subcategory_Acids and Bases Hangs a 20mm solid copper

Hangs a 20mm solid copper cube via an integrated hook for buoyancy and density work

direct-reading current in the most-used range for student bench circuits

Universal regulated AC/DC power supply combining a 0 to 5V adjustable DC rail

and trigonal-bipyramidal molecules with lone-pair orbitals and pear-shaped bonds

Test tubes in borosilicate glass hold 25mL with inverse scale graduations for specialized measurement and chemistry procedures

5-Pack Chemical-Resistant Polypropylene Stoppers, 29/32 Subcategory_Acids and Bases Hangs a 20mm solid copperPack of 5 chemical resistant polypropylene stoppers fits 29 32 sockets for sealing ground joint vessels with chemical and impact resistance.