The formula H₂O shows that water is made from two atoms of hydrogen (H) bonded to one atom of oxygen (O). Katie: Time for some science. And today it's a chemistry classic, the periodic table.

But sometimes the symbol comes from a name for the element ... chemically joined together. Compounds form in chemical reactions, and you need other chemical reactions to separate a compound ...

A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have ...

Everything is made of atoms! Cathode – the positive end of a battery, marked with a plus (+) sign. Chemical energy – the energy stored in the chemical bonds of compounds. Disposable (single-use) ...

In a joint project between the Zelinsky Institute of Organic Chemistry and Skoltech, a research group led by RAS Academician Valentin Ananikov has developed a unique machine-learning-based search ...