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16 terms

Elements, Compounds, and Mixtures

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compound
pure substance composed of two or more elements that are chemically combined in a specific mass ratio. Ex. water (H2O), Carbon dioxide (CO2).
concentration
A measure of the amount of solute dissolved in a solvent
solution
composed of particles of two or more substances that are distributed evenly among each other. It has the same appearance and properties throughout the mixture.
element
pure substance that cannot be separated into simpler substances by physical or chemical means
mixture
combination of two or more substances that are not chemically combined
physical properties
boiling point, melting point, and density, color, hardness, and texture
molecule
formed when atoms of two or more elements join together.
chemical properties
reactivity with acid, flammable, reactive with other chemicals
dissolving
process in which particles of substances separate and spread evenly throughout a mixture
solubility
the ability of the solute to dissolve in a solvent at a certain temperature
insoluble
a solute that is unable to dissolve in a solvent
suspension
mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out. Ex. Snow globe.
colloid
mixture in which the particles are dispersed throughout but are not heavy enough to settle out. Ex. Milk, Gelatin, Whipped Cream
solute
the substance that is dissolved (typically the lesser amount)
solvent
the substance that is doing the dissolving (typically the greater amount)
soluble
a solute that is able to dissolve in a solvent