Substances, Compounds Mixtures

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25 Terms

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Property

Characteristics/Traits/Quality

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Matter

Anything that takes up space

The Amount

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Physical & Chemical

Matter has two types.

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Intensive

Does not depend on the amount

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Extensive

Dependent on the amount

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Chemical Formula

Shorthand expression on the number of atoms in a substance.

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Pure Substance

Same composition & properties.

  • 1 particle

  • Exists in the 3 states of matter

  • Elements or CHEMICALLY BONDED COMPOUNDS

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Mixtures

Two or more substances where there is NO chemical combination

  • combine physically

  • NO PROPORTIONS

  • they just MIX

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Homogeneous

  • SAME UNIFORM APPEARANCE AND COMPOSITION

  • EVENLY DISTRIBUTED

  • Individual substances CANT BESEEN

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Water

Universal SOLVENT

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Solutions

primarily composes of a solute and solvent

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Solute

Dissolves

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Solvent

Does the dissolving

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Heterogeneous

Visibly different substances

Two or more parts CAN be seen bc its NOT EVENLY MIXED

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Suspension

LARGE PARTICLES THAT SETTLE AT THE BOTTOM

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Sieving

Seperate larger particles from smaller particles in SOLIDS

ex. gravel and rocks

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Filtration

Separate insoluble solid particles form a liquid

  • Filters impurities from water or to separate coffee.

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Evaporation

Separates LIQUID from a solid using HEAT

  • SOLUTE BECOMES THE RESIDUE

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Magnetization

Remove magnetic materials from a mixture

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Separating Funnel

Separate immiscible liquids (LIQUIDS THAT DONT MIX)

how it works?

DIFFERENT DENSITY

ex. OIL AND WATER

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Decantation

Separate the liquid layer and a heavy insoluble solid

  • Metal settles at bottom, the liquid is slowly poured out

  • example: rice

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Distillation

Evaporation and Condensation.

  • two or more liquids w two or more different boiling points

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Centrifuge

Solid particles that are too fine to be seperated.

  • Spins at high speed

  • allows solid particles in suspension to settle quickly.

  • solid settle at bottom, less dense solids settle at the top.

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Chromatography

Separate colored substances.

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Compound

Made of multiple substances