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34 Cards in this Set
- Front
- Back
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Viscosity |
Resistance of a liquid to flow |
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Conductivity |
Substance's ability to allow heat to flow |
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Malleability |
Ability of a solid to be hammered w/o shattering |
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Hardness |
Compare hardness of two materials by trying to scratch one another |
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Melting points |
A substance changes from a solid to liquid |
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Boiling points |
Substance changes from liquid to gas |
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Density |
Ratio of the mass of a substance to its volume |
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Filtration |
Process that separates materials based on the size of particles |
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Distillation |
Process that separates the substances of a solution based on their boiling points |
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Colloid |
Does not separate into layers and can't be filtered, contains particles that are intermediate in size between a solution and suspension |
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Mixtures |
Retain the properties of their individual substances, not fixed |
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Suspensions |
A heterogeneous mixture that separates into layers over time |
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Compounds |
Can be broken down into simpler substances, two or more different elements joined in a fixed proportion |
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Elements |
Can't be broken down, has a fixed composition because contains only one kind of atom |
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Pure substances |
Every sample of a pure substance has the same properties because a substance has a fixed, uniform composition |
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Physical properties of matter |
Describe and observe matter with the senses |
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Chemical property |
Substance's potential to change into a new substance |
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Solutions |
A type of mixture, can be solids, liquids, or gases |
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Homogeneous |
Same throughout |
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Solvent |
Part of the solution that does the dissolving |
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Solute |
Part of solution that gets dissolved |
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Matter gets through physical and chemical changes... |
4 states of matter... Solid liquid gas plasma |
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Heterogeneous |
Parts noticeably different |
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Three types of homogeneous mixtures |
Solid substances- steel=carbon and iron metal Gases- pure air Liquids- petroleum |
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Rules for writing elements |
First letter, capitalized Second, not capitalized |
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Metric units for volume |
Liter, milliter, centimeter cubed, meter cubed |
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How can physical properties be used to choose the Right material? |
By seeing which material works best by using the physical properties |
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How can physical properties be used to identify materials? |
To choose for a particular use. |
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How can you use physical properties to separate mixtures? |
Filtration and distillation |
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Physical changes |
Change in size or shape, still made of same material |
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Chemical changes |
Change in color, production in gas, formation of a precipitate |
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Flammability |
Burn it presence of oygen |
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Reactivity |
How readily a substance combines chemically w/ other substances |
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Three types of evidence that a chemical change has taken place |
A change in color, production in gas, formation of a precipitate ( solid that forms / separates from a liquid mixture) |
