Chemical compounds are essential to understanding the makeup of matter, both natural and synthetic materials. From table salt to glucose, they show how elements combine to form new substances with …

There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds, ionic compounds are held …

All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.

Oct 12, 2025 · Everyday life and scientific work both rely on a surprising variety of chemicals — in kitchens, gardens, factories and classrooms. A compact, well-organized list makes it easier to spot …

Oct 24, 2020 · In chemistry, a compound is a substance made of two or more elements chemically bonded to each other in a fixed ratio. The chemical bonds between atoms of elements involve a …

Learn about elements, compounds and mixtures in this KS3 Chemistry guide from BBC Bitesize.

Mar 12, 2026 · Learn what chemical compounds are, how they differ from elements and mixtures, and why they matter in everyday life.

Sep 20, 2025 · Understanding compounds unlocks insights into how our environment functions and how life is sustained. A compound is a substance formed when two or more different types of atoms …

2 days ago · ˈkäm-ˌpau̇nd 1 : a word consisting of parts that are words "rowboat," "high school," and "light-year" are compounds 2 : something formed by a union of elements or parts especially : a …

Search and explore chemical information in the world's largest free chemistry database. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical …