Elements, Compounds, PowerPoint PPT Presentation

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Title: Elements, Compounds,


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Elements, Compounds, Mixtures
  • The Classification of Matter

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Matter
  • Matter is anything that has mass and takes up
    space.
  • Anything that isnt matter is energy.

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Elements
  • The smallest piece of an element is an atom.
  • Cannot be broken down into smaller substances by
    ordinary means.
  • The smallest piece of matter that still has the
    properties of this type of matter.
  • Examples are all the substances listed on the
    Periodic Table, like carbon, uranium, neon,
    copper,

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Elements
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Compounds
  • The smallest piece of a compound is a molecule.
  • Two or more atoms that are bonded together to
    form a new substance with new characteristics

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Compounds
  • Cannot be separated except by chemical reactions.
  • Combined elements lose their own identities to
    become something new.
  • Elements always combine in definite ratios.

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Mixtures
  • Combination of 2 or more substances that are
    mixed (not bonded) together.
  • Can be separated by physical means using physical
    properties like melting point, boiling point,
    density, color, shape, magnetism, solubility,

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Mixtures
  • No definite proportions or single formula
  • Individual parts retain their own properties

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Homogeneous Mixtures
  • Homogeneous mixtures are the same all the way
    through.
  • Examples are solutions like Pepsi, brass,

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Heterogeneous Mixture
  • Heterogeneous mixtures are not evenly mixed like
    Raisin Bran cereal. Many of the raisins fall to
    the bottom.

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Tyndall Effect
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