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Elements&Compounds

vocab for science unit 5

QuestionAnswer
Element A pure substance that cannot be broken down into a simpler substance.
Pure Substance A substance made of one type of atom (one ingredient)
Metal Elements that are shiny and are good conductors of thermal energy or electric current; most metals are malleable and ductile
Nonmetal Elements that are dull and are poor conductors of thermal energy and electric current
Metalloid Elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors
Compound A pure substance composed of two or one elements that are chemically combined
Mixture A combination of two or more substances that are not chemically combined
Colloid A mixture in which the particles are dispersed throughout but are not heavy enough to settle out
Chemical Equation A shorthand description of a chemical reaction using chemical formulas and symbols
Subscript A number written below and to the right of a chemical symbol in a chemical formula
Coefficient A number placed in front of a chemical symbol or formula; used to balance a chemical equation
Solution A mixture that appears to be a single substance but is composed of particles of two or more substances that are distributed evenly amongst each other
Solvent The substance in which a solute is dissolved to form a solution
Solute The substance that is dissolved to form a solution
Concentration A measure of the amount of solute dissolved in a solvent
Solubility The ability to dissolve in another substance; more speficially, the amount of solute needed to make a saturated solution using a given amount of solvent at a certain temperature
Suspension A mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out
Created by: red8
 

 



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