A compound is a substance that is formed when two or more different chemical elements bond together in a fixed ratio, like water (H₂O) from hydrogen and oxygen or salt (NaCl) from sodium and chlorine.

Students learn to define and identify organic compounds. Chemical Reactions: Writing Molecular Formulas and an Introduction to Organic Molecules: Students learn to define and identify organic ...

While we refer to substances by their common names in everyday life, all these substances have a chemical name and a chemical formula that scientists and researchers use. The system of chemical naming ...

In chemistry, the chemical nomenclature of ionic and molecular compounds uses a systematic approach of prefixes to indicate the number of each element present in the compound. This chemical naming of ...

A lead-acid battery is a type of rechargeable battery, invented in 1859. It uses lead plates (electrodes) submerged in battery acid, which we learn further in this article. This battery acid is known ...