Chemistry Companion Free

Have you ever wanted to know the molecular weight of an element, bu found yourself without a periodic table? Well now with Chemistry companion, you will never need a periodic table again! This is a free version that does not support all of the features that the pro version does. In this version you can find the weight of elements only, but if you upgrade to the pro version, you can Enter compounds now. So try this version, and if you like it, go pro!