Free iPad App Assists Chemistry Students

The "Lewis Dots" free app for iPads allows students to build and manipulate chemical bonds, using the touch-screen to add atoms and match electrons, simplifying computations.  The app was developed by scientists at New York University-Polytechnic.  http://www.ny1.com/content/news_beats/education/149141/new-ipad-app-lets-brooklyn-students-learn-chemistry-with-greater-ease