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CH.4 terms V.G.

QuestionAnswer
Element is a pure substance that cannot be separated into a simpler substance by physical or chemical means.
Pure substance is a substance in which there is only one type of particle.
Characteristic properties property of a substance that is always the same whether the sample is observed in large or small.
Metals elements that are shiny and are good conductors of thermal energy and electric current.
Nonmetals are elements that are dull (not shiny) and that are poor conductors of thermal energy and electric current.
Metalloids also called semiconductors, are elements that have properties of both thermal energy and electric current.
Compound is a pure substance composed of two or more elements that are not chemically combined.
Mixture is a combination of two or more substances that are not chemically combined.
Solution is a mixture that appears to be single but is composed of particles of two or more substances that are distributed evenly amongst each other.
Solute is the substance that is dissolved.
Solvent is the substance in which the solute is dissolved.
Soluble able to dissolve.
Insoluble unable to dissolve.
Homogeneous Mixture same appearance and properties throughout mixture.
Heterogeneous Mixture different compounds are easily seen.
Concentration measure of the amount of solute dissolved in a solvent.
Solubility the amount of solute needed to make a saturated solution using a given amount of solvent at a certain time.
Dilute do not specify the amount of solute that is actually dissolved.
Saturated Solution a solution that contains all the solute it can hold at a given temperature.
Unsaturated Solution contains less solute than it can hold at a given temperature.
Suspension mixture in which particles of a material are dispersed throughout a liquid of gas but are large enough that they settle out.
Colloids mixture in which particles are dispersed throughout but are not heavy enough to settle out.
Created by: PhySciLewis1
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