Chemistry is the scientific study of the properties and behavior of matter. [1][2] It is a physical science within the natural sciences that studies matter: composition, structure, properties, behavior and the …

Apr 25, 2025 · Chemistry, often called the “central science,” is the branch of science that deals with the composition, structure, properties, and changes of matter. It connects the other natural sciences, …

May 22, 2026 · Chemistry is the science of the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is …

Chemistry is the study of matter—what it consists of, what its properties are, and how it changes. Being able to describe the ingredients in a cake and how they change when the cake is baked is called …

Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, …

Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

Chemistry is the study of matter and the changes it undergoes.

Apr 3, 2026 · Nature Chemistry offers a unique mix of news and reviews alongside top-quality research papers. Published monthly, in print and online, the journal reflects the entire spectrum of chemistry, …

Free science and math simulations for teaching STEM topics, including physics, chemistry, biology, and math, from University of Colorado Boulder