Explore the fascinating world of chemistry from atoms to complex reactions. Learn, practice, and master chemistry concepts with our interactive tools and comprehensive resources.
Chemistry is the scientific study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. It bridges the physical sciences with life sciences and is essential to understanding the world around us.
Chemistry impacts every aspect of modern life: pharmaceuticals, agriculture, food science, materials engineering, environmental protection, and energy production. Whether developing new batteries, creating sustainable materials, or understanding biological processes, chemistry provides the foundation.
Thermodynamics, kinetics, quantum mechanics, and electrochemistry
Carbon compounds, reactions, mechanisms, and functional groups
Periodic table, bonding, coordination compounds, and crystal structures
Titrations, chromatography, spectroscopy, and chemical analysis
Industrial processes, environmental chemistry, and nanomaterials
Explore all 118 chemical elements with detailed information. Click on elements to view comprehensive details.
Balance chemical equations automatically. Enter reactants and products separated by + signs.
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Explore Topics →The smallest unit of matter that retains the properties of an element. Consists of protons, neutrons, and electrons.
A chemical bond formed when two atoms share one or more pairs of electrons.
A scale measuring acidity or basicity. pH 7 is neutral, below 7 is acidic, above 7 is basic.
A unit of measurement equal to 6.022 × 10²³ particles (Avogadro's number).
A thermodynamic quantity representing the total heat content of a system at constant pressure.
A substance that speeds up a chemical reaction without being consumed in the process.