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mixtures
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14
Science
8th Grade
01/20/2021

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Term
element
Definition
a substance that cannot be separated or broken down into simpler substances by physical or chemical means
Term
pure substance
Definition
a sample of matter, either a single
element or a single compound, that has definite chemical and physical properties
Term
metals
Definition
an element that is shiny and that conducts heat and electricity well
Term
nonmetals
Definition
an element that conducts heat and
electricity poorly
Term
metalloids
Definition
elements that have properties of both
metals and nonmetals
Term
compound
Definition
a substance made up of atoms of
two or more different elements joined by chemical bonds; cannot be separated by physical means; can be broken down by chemical means
Term
dissolve
Definition
to cause a solute to pass into a solution; dissolving is also known as dissolution
Term
mixture
Definition
a combination of two or more substances that are not chemically combined
Term
concentration
Definition
the amount of a particular sub-
stance in a given quantity of a mixture, solution, or ore
Term
solution
Definition
a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
Term
solute
Definition
in a solution, the substance that dissolves in the solvent
Term
solvent
Definition
in a solution, the substance in which the solute dissolves
Term
suspension
Definition
a mixture in which particles of a
material is more or less evenly dispersed throughout a liquid or gas; smaller particles will settle out if undisturbed for some time
Term
colloid
Definition
a mixture consisting of tiny
particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid, or gas
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