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22 Cards in this Set
- Front
- Back
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Mixiture
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Two or more substances that are mixed together but not chemically combined.
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Solution
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A very well mixed mixture.
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Characteristic Property
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A quality of a substance that never changes and can be used to identify the substance
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Boiling Point
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The temperature at which a substance boils.
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Melting Point
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The temperature at which a substance melts.
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Physical Change
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A change that alters the form or appearance of a substance but does not make the material into another substance.
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Chemical Change
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A change in which one or more substances combine or decompose to form new substances.
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Chemical activity
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A characteristic property of a substance that indicates its ability to undergo a chemical change.
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Pure Substance
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A substance made of only one kind of matter and having definite properties.
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Element
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A substance in which all atoms are alike and which cannot be broken down into other substances by chemical or physical means; one of about 100 basic materials that make up all matter.
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Compound
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A substance mad of two or more elements chemically combined
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Weight
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A measure of the force of gravity on an object.
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Mass
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A measure of how much matter is in an object.
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International system of units (SI)
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A system of measurement based on multiples of 10 and on established measures of mass, length, and time; used by scientists to measure the properties of matter.
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Volume
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The amount of space that matter occupies.
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Density
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The measurement of how much mass of a substance is contained in a unit of volume.
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Molecule
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A combination of two or more atoms.
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Chemical Bond
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The force that holds atoms together.
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Ore
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A rock that contains a metal or other economically useful element.
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Electrolysis
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A process by which electric currents break chemical bond.
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Electrode
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A metal part of an electrochemical cell, which gains or loses electrons;used in electrolysis.
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Atom
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The smallest particle of an element that has the properties of that element.
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