Pandora Organic Chemistry Modecular & mode kit has 80 bonds and 76 bonds providing students the ability to creat and visualize different molecular models . The snap-closure box features prevents spills and the compartments keep atoms and bonds conveniently separated more carbon (30) & hydrogen (32) atoms than most sets ensuring sufficient carbons when creating ring structures . Easy to assemble and disassemble making it easy to rotate bonds. http://www.amazon.com/Pangira-Chemistry-Molecular-chemistry-molecular/dp/B01DDVMNCA/
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