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Chapter 4

Elements, Compounds, and Mixtures

Element a pure substance that cannot be seperated into simpler substances by chemical or physical methods
Pure Substance a material in which all the basic particles are the same
Atom the basic particle of an element
Characteristic Properties a physical or chemical property thats unique to a particular substance
Metals tend to be shiny solids; conduct heat and electric current well
Nonmetals dont conduct heat or electric current very well; dull
Metalloids have some of the properties of metals and some of the properties of nonmetals
Compound a pure substance composed of two or more elements that are joined by chemical bonds
Molecule the smallest particle of a substance that retains the chemical and is composed of two or more atoms
Mixture a combination of two or more substances that arent chemically combined
Solution is a homogeneous mixture
Dissolving particles of substances separate and spread evenly throughout a mixture
Solute substances present in a solution in smaller amounts
Solvent component that is present in the largest amount
Soluble easily dissolved
Insoluble incapable of being dissolved
Alloys solid solutions in which a metal, copper, is the solvent
Concentration the amount of solute in a given amount of solvent
Solubility how much solute dissolves in a certain amount of solvent at a certain temperature
Dilute the process of reducing the concentration of a solute
Concentrated removed the solvent and left the solute
Suspension mixture in which the particles of a material are large enough to settle out
Colloid mixture in which the particles are apread throughout but arent large enough to settle out
Saturated Solution one substance fully dissolved in a liquid to the point where the maximum amount of solute is reached
Heterogeneous not a definition yet
Homogeneous a solution appears to be a single substance
Substances matter which has a specific composition and specific properties
Created by: thegoldenkey



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