Chemistry

Chemistry is the science of matter - its composition, structure, properties, and the reactions by which it transforms. It spans from atomic structure and the periodic table to the complex molecular interactions in living cells. Organic chemistry studies carbon-based compounds and underlies the pharmaceutical and plastics industries. Inorganic chemistry covers metals, salts, and minerals. Physical chemistry bridges chemistry and physics, examining thermodynamics and reaction kinetics. Chemistry is central to medicine, materials science, food production, and environmental monitoring. Famous chemists including Marie Curie, Dmitri Mendeleev, and Linus Pauling made breakthroughs that transformed science and industry. This sub-category tests knowledge of chemical elements, compounds, reactions, and the principles that govern how matter behaves and interacts.

This topic is part of Science - use the lab and fields tools below, then practice with flashcards and quizzes.