A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition. The ratio of each element is ...

Chalk is a fine-textured form of limestone. It is composed of several tiny fragments of the calcite shells or skeletons of ...

A lead-acid battery is a type of rechargeable battery, invented in 1859. It uses lead plates (electrodes) submerged in ...

Laughing gas is known for making people feel happy, relaxed, or giddy. It can make you feel giggly and less aware of pain.

For example, magnesium oxide is made up of two elements, magnesium and oxygen. Its formula is MgO. This shows that it has one atom of magnesium for every one atom of oxygen.

Researchers from Syntelly — a startup that originated at Skoltech — Lomonosov Moscow State University, and Sirius University have developed a neural network-based solution for automated recognition of ...