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19 Cards in this Set
- Front
- Back
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density
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the mass per unit volume of a material
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volume
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a measure of the space occupied by matter
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mass
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the amount of matter being considered
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formula for determining density
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density= mass over volume
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luster
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the reflection of light from the surface of a material described by its quality and intensity
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malleability
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a characteristic property of a metal that describes the ease of flattening it with a hammer
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electrical conductivity
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a measure of a material's ability to conduct an electric current
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metal
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a class of materials that exhibit the propeerties of conductivity, malleability, and ductity.Metals are shiny, have basic oxides, sand, and readily lose electrons to form positive ions
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non-metal
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a term used in chemistry when classifying the chemical elements
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ductility
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a property of a substance, typically metal, whereby it can be pulled into a wire.
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reactivity
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a property that describes how readily a substance will react with other substances
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oxidation
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the loss of one or more electrons by an atom, molecule, or ion with a resulting gain in poositive charge
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metalloid
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an element that possesses both metal and nonmetal characteristics. Example: silkicon, arsenic, and germanium are metallids
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alloy
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a homogeneous mixture (solution) of two or more metals. Example: alloys of copper and zinc are called brass.
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polymer
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a subsstance that is a macromolecule consisting of many identicall small units (monomers) covalently bonded together in long chains
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viscosity
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a property related to the resistance of a fluid to flow
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polymerization
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a chemical reaction that converts small molecules (monomers) into large molecules (polymers)
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ion
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an atom or molecule that has accquired a charge by either gaining (anion) or losing (cation) electron(s)
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electron
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a negatively charged subsatomic partical located outside of the nucleus of the atom. An electron's charge is equal to be opposite to that of a proton
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