Chemistry Basics: Introduction
Terms
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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)