Chapter 2 Matter

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Chapter 2Matter

• Section 2- Properties of matter (p. 45)

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Objectives

• Compare and contrast physical and chemical
  properties

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I. Physical properties (e.g.- mass, volume,
density, color, odor, shape, texture, etc.)
A. It describes properties that can be
discovered without changing the
substance
State- easily observed form of a
substance Melting point, boiling
point, hardness, conduct electricity,
magnetism, conduct heat
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B. Density- Dm/v Mass divided by volume 1. How
much matter is in a certain volume 2. It
determines if a substance will sink or
float - lt or gt 1 g/cm3 (density of water)
C. Physical properties help determine uses
II. Chemical Properties (p. 50) A. Describes
how it acts at a molecular level B. Can
be discovered only by changing the
substance C. Examples- reactivity and
flammability 75340.mov