In our project, we combined iron (Fe) and oxygen (O) together in order to create rust (iron + oxygen). The blue circles are moving rapidly, eventually combining with some non-moving gray squares, and when they collide, both oxygen and iron still make a triangular shape which we classify as rust agent. The chemical equation is iron +oxygen --> rust: 4Fe + 3O2 --> 2Fe3O2
Jolie and Angie