Ch 1 matter and change
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Ch.1: Matter and Change. 1.1 Chemistry. Sciences. used to be divided into strict categories physical (nonliving) biological (living) Chemistry has parts that fall under both categories many sciences are so interrelated that you can’t categorize them in those ways anymore. Chemistry.

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Ch.1: Matter and Change

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Ch 1 matter and change

Ch.1: Matter and Change

1.1 Chemistry


Sciences

Sciences

  • used to be divided into strict categories

    • physical (nonliving)

    • biological (living)

  • Chemistry has parts that fall under both categories

  • many sciences are so interrelated that you can’t categorize them in those ways anymore.


Chemistry

Chemistry

  • study of matter and the changes it undergoes

  • chemists use instruments to improve their ability to observe and make measurements


Chemistry1

Chemistry

  • chemists work with chemicals (any substance with definite composition)

  • all matter has chemical basis whether it is living or nonliving


Branches of chemistry

Branches of Chemistry

  • organic- study of compounds containing carbon

  • inorganic- study of compounds that aren’t organic

  • physical- study of changes of matter and their energy


Branches of chemistry1

Branches of Chemistry

  • analytical- study of composition of materials

  • biochemistry- study of substances and processes in living things

  • theoretical- use of math and computers to understand chemical behaviors and design new compounds


Types of research

Types of Research

  • Basic Research- done to increase knowledge

  • Applied Research- done to solve a problem

  • Technological Development- done to improve quality of life

  • technology – application of knowledge (usually scientific) for practical purposes


Ch 1 matter and change1

Ch. 1: Matter and Change

1.2 Matter and Its Properties


Terms

Terms

  • Matter- anything that has mass and volume

  • Atom- smallest unit of an element that keeps the properties of element

  • Element- pure substance made of only one type of atom

  • Compound- substance made of 2 or more types of atoms that are chemically bonded

  • Molecule- type of compound in which bonds are covalent bonds


Properties of matter

Properties of Matter

  • chemists use characteristic properties to tell substances apart and to separate them

  • some properties define a group of substances


Types of properties

Types of Properties

  • Extensive- depend on the amount of matter

  • Ex: volume, mass, amount of energy

  • Intensive- do not depend on the amount

  • Ex: density, boiling point, ability to conduct


Types of properties1

Physical- characteristics that can be observed or measured without changing the identity of a substance

Chemical- relates to a substances ability to undergo changes that transform it into a different substance

Easiest to see when a chemical is reacting

Types of Properties


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