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16-Aug-2019 15:50

The word chemistry comes from alchemy, which referred to an earlier set of practices that encompassed elements of chemistry, metallurgy, philosophy, astrology, astronomy, mysticism and medicine.

It is often seen as linked to the quest to turn lead or another common starting material into gold, though in ancient times, the study encompassed many of the questions of modern chemistry being defined as the study of the composition of waters, movement, growth, embodying, disembodying, drawing the spirits from bodies and bonding the spirits within bodies by the early 4th century Greek-Egyptian alchemist Zosimos.

In chemistry, matter is defined as anything that has rest mass and volume (it takes up space) and is made up of particles.

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Energy and entropy considerations are invariably important in almost all chemical studies.

A molecule is the smallest indivisible portion of a pure chemical substance that has its unique set of chemical properties, that is, its potential to undergo a certain set of chemical reactions with other substances.