ChemistryFrom Wikipedia, the free encyclopediaChemistryis a
branch ofphysical sciencethat studies the composition, structure,
properties and change ofmatter.[1][2]Chemistry deals with such
topics as the properties of individualatoms, how atoms formchemical
bondsto createchemical compounds, the interactions of substances
throughintermolecular forcesthat give matter its general
properties, and the interactions between substances throughchemical
reactionsto form different substances.Chemistry is sometimes
calledthe central sciencebecause it bridges othernatural sciences,
includingphysics,geologyandbiology.[3][4]For the differences
between chemistry and physics seeComparison of chemistry and
physics.[5]Scholars disagree about theetymology of the
wordchemistry. Thehistory of chemistrycan be traced toalchemy,
which had been practiced for severalmillenniain various parts of
the world.
