As defined by Britannica, Chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes. Every substance, whether naturally occurring or artificially produced, consists of one or more of the hundred-odd species of atoms that have been identified as elements. Although these atoms, in turn, are composed of more elementary particles, they are the basic building blocks of chemical substances; there is no quantity of oxygen, mercury, or gold, for example, smaller than an atom of that substance. Chemistry, therefore, is concerned not with the subatomic domain but with the properties of atoms and the laws governing their combinations and how the knowledge of these properties can be used to achieve specific purposes.

1. General
Chemistry in
Chem 101

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8. UNIT 1
History of
Chemistry

9. What is Chemistry?
Chemistry is the study of matter- Its
composition, structure, properties and
transformations.

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11. Matter

12. MATTER
Is anything that takes up space and
has a mass

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14. Mass
o Mass is how much matter
an object contains
o Mass is constant for a body
and does not change with
location
o The kilogram is a unit of
mass

15. Weight
o Weight is the force exerted
on a mass by gravity
o Weight is NOT constant and
changes from place to place
o Newton (N) or lb is the unit
of weight

17. INORGANIC Chemistry
2
ORGANIC Chemistry
1
PHYSICAL Chemistry
3
BIOCHEMISTRY
4
ANALYTICAL Chemistry
5
Main
Subdiscipline
of
Chemistry

18. Organic Chemistry
✔ It is the study
of most carbon-
based
compounds

19. Organic Chemistry

20. Inorganic Chemistry
✔ It deals with all
substances which are
not considered to be
organic (carbon).
✔Usually rocks and
minerals

21. Inorganic Chemistry

23. Physical Chemistry
✔ It deals with
application of
physical laws to
chemical change
and chemical
system

25. Biochemistry
✔ It is concerned
with chemistry of
life processes and
living organism
✔It deals with
macromolecules

27. Analytical Chemistry
✔ It is concerned
with various
techniques and
laboratory methods
to determine the
composition of
matter.

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