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Definition
| anything that has mass and takes up space. |
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Definition
| measure of the amount of matter |
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Definition
| a measure of the amout of 3-D space an object takes up. |
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Definition
| a measure of an objects concentration of mass. |
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Term
| Characteristics of solids |
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Definition
Particles are very close together.
Particles have an orderly fixed position.
Particles vibrate in place and do not break away from fixed positions.
have fixed volumes and shapes.
Not easily compressable. |
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| Characteristics of liquids |
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Definition
Particles are not fixed.
Can move and slide past each other.
Not easily compressible.
The balance of cohesion and adhesion determines whether it can wet a surface. |
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| Characteristics of gasses |
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Definition
Particles flow easily and move freely.
Assumes size and shape of container.
Compressible.
Volume will change with changes in temperature and pressure.
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Term
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Definition
The simplest pure substance made of only one type of atom.
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Term
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Definition
Abbreviated method for writing names of elements.
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Term
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Definition
Two or more substances mixed together that don't chemically combine.
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Definition
| Solution containing large solid particles that can settle out of a mixture |
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Term
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Definition
Substances are not evenly distributed and particles can settle out.
Ex. fruit salad |
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Term
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Definition
Substances appear evenly distributed, small, and do not settle out
Ex: milk |
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Term
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Definition
Homogeneous mixture containing suspended particles.
Liquid in a gas - fog
gas in a liquid - foam/whipped cream
Solid in liquid - paint
Liquid in solid - gel/butter |
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Term
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Definition
| Scattering of light by colloided particles |
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Term
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Definition
| Substance being dissolved |
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Term
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Definition
| Substance doing dissolving |
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Term
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Definition
| Amount of solute that can be completely dissolved in a solvent at a specific temperature |
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Term
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Definition
Gas into gas -Air oxygen in nitrogen
gas into liquid - Soda water co2 in h20
gas into solid - charcoal gas mask, poison gas in charcoal
liquid into liquid - antifreeze PEG in water
liquid into solid - dental filling mercury and silver
solid in liquid - ocean water salt in water
solid into solid - gold jewelry Cu in gold |
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Term
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Definition
properties observed using our five senses
ex. sour, rough |
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Term
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Definition
properties that can be measured
ex. temp, length, volume |
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Term
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Definition
Properties that do not depend on amount of matter present
ex. boiling point, density |
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Term
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Definition
Properties that DO depend on amount of matter present
ex. volume, mass size |
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Term
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Definition
Characteristic that can be observed or measured without changing the identity of the substance.
ex. Mass, weight, color, shape |
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Term
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Definition
| Ablility to carry electricity |
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Term
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Definition
| Ability to transfer energy as heat |
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Term
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Definition
| Temperature at which a solid changes state to become a liquid |
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Term
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Definition
| Temperature at which a liquid boils to become a gas at a certain pressure |
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Definition
| Extent to which a given material bend light passing through it |
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Definition
| Ability to be hammered or beaten into thin sheets |
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Definition
| Ability to be drawn into a thin wire |
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Term
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Definition
| When matter changes any of its physical properties |
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Definition
| Process for separating substances in a mixture by evaporating a liquid and recondensing the vapor |
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Term
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Definition
Describes how a substance behaves when it reacts to form new substances
ex. flammabilty, burnability |
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Definition
the changes that a substance undergoes when it reacts to form a new substance
ex. burning, explosion |
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Term
| Law of conservation of mass |
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Definition
| The mass of all substances before a chemical change equals the mass of all the substances after the chemical change |
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Term
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Definition
Changing from a solid to a liquid
ex. melting, ice |
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Definition
Changing from a liquid to a solid
ex. freezing, ice/lead |
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Definition
changing from a liquid to a gas
ex. boiling |
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Definition
changing from a gas to a liquid
cold glass/warm day |
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Definition
changing directly from a gas to a solid
ex. frost/snow |
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Definition
changing direcltly from a solid to a gas
ex. dry ice |
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Term
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Definition
molecule
compound
element
mixture
solution |
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Term
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Definition
| Pure substance combined when two or more elements chemically combine (property of a compound can be totally different than the properties of the elements that created it; Na metal + chlorine gas = salt |
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