Ch. 1: Matter and Change - PowerPoint PPT Presentation

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Ch. 1: Matter and Change

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Ch. 1: Matter and Change 1.2 Matter and Its Properties Terms Matter- anything that has mass and volume Atom- smallest unit of an element that keeps the properties of ... – PowerPoint PPT presentation

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Title: Ch. 1: Matter and Change


1
Ch. 1 Matter and Change
  • 1.2 Matter and Its Properties

2
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

3
Properties of Matter
  • chemists use characteristic properties to tell
    substances apart and to separate them
  • some properties define a group of substances

4
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

5
Types of Properties
  • 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
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