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MATTER MIXTURES
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MIXTURES Many substances in nature are not pure substances, instead they are mixtures.
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A mixture is a combination of
two or more elements and/or compounds.
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Lemonade water - liquid sugar - sweet lemons - sour
What does lemonade taste like? What is lemonade made of ? water - liquid sugar - sweet lemons - sour
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AIR Nitrogen – N2 Oxygen – O2 Carbon dioxide – CO2
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Marble calcite dolomite and other minerals
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Lemonade The mixture has properties that are similar
to the components that make it up. Each component in the mixture retains its individual chemical properties.
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MIXTURE ? ? Combination of elements and/or compounds Mixture of two
Mixture of an element and a compound ? ?
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Pure substance or Mixture Composed of? elements
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Pure substance or Mixture Composed of? elements
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Pure substance Mixture Pure substance Pure substance Mixture Mixture
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Pure substance Mixture Element compound
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Pure substance Mixture
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Pure substance or mixture?
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Pure substance or mixture ?
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Pure substance or mixture ?
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Pure substance or mixture ?
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Pure substance or mixture ?
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Pure substance or mixture ?
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Pure substance or mixture ?
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Mixtures can be classified as heterogeneous mixtures or
homogeneous mixtures. Hetero = different Homo = same
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A heterogeneous mixture is
one that doesn’t blend evenly throughout, individual substances remain distinct. granite
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HETEROGENEOUS MIXTURES
minerals rock water air organic matter bacteria Pond water water algae protozoa mud bacteria Oil and vinegar soil
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A homogeneous mixture is a mixture
that has the same composition throughout. Homogeneous mixtures are also referred to as solutions. It has a single phase.
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HOMOGENEOUS MIXTURES - solutions
Air: gas - gas Soda pop: gas - liquid (nitrogen, oxygen, carbon dioxide) Water, sugar, flavoring, carbon dioxide
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HOMOGENEOUS MIXTURES - solutions
Vinegar: liquid - liquid Kool-aid: liquid - solid (water, acetic acid) (water, sugar, kool-aid)
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HOMOGENEOUS MIXTURES - solutions
14k gold: solid - solid (gold, copper) Coins: solid - solid (copper, nickel)
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HOMOGENEOUS MIXTURES - solutions
24k gold is pure gold. 14k gold is 14/24 or 58.3% gold 14k gold: solid - solid (gold, copper)
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There are two types of matter:
Pure substance --- element compound Combination of elements and compounds (2) Mixture--- hete
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Homogeneous or heterogeneous mixture ?
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Homogeneous or heterogeneous mixture ?
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Homogeneous or heterogeneous mixture ?
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