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Glossary of Chemistry Basics: Introduction

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Chemistry
the study of matter:
composition
structure
properties
processes
energy changes
Branches of Chemistry
Organic, Inorganic, Physical, Analytical, Biochemistry, Theoretical
Organic chem
carbon containing compounds
Inorganic chem
non-carbon compounds
Physical chem
Properties and changes of matter and relation to energy
Analyical chem
identification of components and composition of materials
Biochemistry
substances and processes ocurring in living things
Theoretical chem
use of math and computers to understand principles behind observed chemical behavior and to design and predict the porperties of new compunds
Chemical
any substance that has a definite composition
Basic Research
research to increase knowledge
Applied Research
research to solve a particular problem
Technological development
production and use of products to improve quality of life
Mass
amount of matter
Matter
anything that has mass and takes up space
Atom
the smallest unit of an element that maintains the chemical identity of that element
Element
-a pure substance that cannot be broken down into simpler, stable substance
-is amde of one type of atom
Compound
-substance that can be broken down into simple stable substances
-made from atoms of two or more elements that are chemically bonded
Extensive properties
depend on the amount of matter that is present.(volume, mass, amount of energy in the substances)
Intensive properties
do not depend on the amount of matter present (melting point, bioling point, density, electrical conductivity)

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