Learn more about the science of chemistry. Chemistry is the branch of science that deals with matter, the elements that make up everything in the universe and how they interact. Learn more about ...

Six popular machine learning models. (a) Decision tree; (b) feedforward neural network (Trans: transformation; Activ Func: activation functions); (c) convolution neural network (Conv: convolution; ...

Thought experiment: a carbon dioxide molecule—think of a cheerleader’s baton—comes slanting in at high speed over a dense liquid, strikes the surface and ricochets. How does it tumble? Fast or slow?

In this feature, molecules are depicted in two ways. Methane, for example, is written out as CH 4. This shows that the molecule consists of one atom of carbon and four atoms of hydrogen. The molecule ...