Virtual Space OOO has introduced 3D Molecules Edit & Test 1.0 (http://tinyurl.com/nra3ljf), a chemistry app for Mac OS X. It allows anyone to build and manipulate 3D molecular models of organic and inorganic compounds.
The key features are 3D printing support and a “test yourself” mode that allows students to check their knowledge of the 3D structure of molecules. 3D Molecules Edit & Test is designed especially for high school and college chemistry students learning about molecular bonding and orbitals with the aid of 3D visualization.
The molecules can be visualized in 3D using stick, ball and stick and space-filling (CPK) models. Important information about the molecule can be displayed. For example, it’s possible to visualize the atomic orbitals, see electronic effects using arrows and identify bond lengths and element symbols.
3D Molecules Edit & Test requires OS X 10.7 or later. It costs US$6.99 and is available worldwide through the Mac App Store in the Education category.