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Chapter 2
Vocabulary
28
Chemistry
10th Grade
12/15/2008

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Term
Mass
Definition
Measure of the amount of matter the object contains.
Term
Volume
Definition
Measure of the space occupied by an object
Term
Extensive Property
Definition
Property that depends on the amount of matter in a sample. Mass and Volume are examples of this.
Term
Intensive Property
Definition
Property that depends on the type of matter in a sample, not the amount of matter. Hardness is an example of this.
Term
Substance
Definition
Matter that has uniform and definite composition.
Term
Physical Property
Definition
a quality or condition of a substance that can be observed or measured without changing the substance’s composition.
Term
Solid
Definition
is a form of matter that has a definite shape and volume.
Term
Liquid
Definition
is a form of matter that had an indefinite shape, flows, yet has a fixed volume.
Term
Gas
Definition
a form of matter that takes both the shape and volume of its container.
Term
Physical Change
Definition
some properties of a material change, but the composition of the material does not change.
Term
Mixture
Definition
is a physical blend of two or more components.
Term
Heterogeneous Mixture
Definition
A mixture in which the composition is not uniform throughout is a
Term
Homogeneous Mixture
Definition
is a mixture in which the composition is uniform throughout.
Term
Homogeneous mixture
Definition
is a mixture in which the composition is uniform throughout.
Term
Solution
Definition
Another name for a homogeneous mixture is a solution.
Term
Term Phase
Definition
is used to describe any part of a sample with uniform composition and properties
Term
Filtration
Definition
The process that separates a solid from the liquid in a heterogeneous mixture is called
Term
Distillation
Definition
a liquid is boiled produce a vapor that is then condensed into a liquid.
Term
Element
Definition
is the simplest form of matter that has a unique set of properties.
Term
Compound
Definition
is a substance that contains two or more elements chemically combined in a fixed proportion.
Term
Chemical Change
Definition
produces matter with a different composition than the original matter.
Term
Chemical Symbol
Definition
Each element is represented by a one- or two-letter chemical symbol.
Term
Chemical Property
Definition
The ability of a substance to undergo a specific chemical change is called
Term
Chemical Reaction
Definition
One or more substances change into one or more new substances during a
Term
Reactant
Definition
A substance present at the start of the reaction is
Term
Product
Definition
A substance produced in the reaction is
Term
Precipitate
Definition
A solid that forms and settles out of a liquid mixture.
Term
Law of Conservation
Definition
states that in any physical change or chemical reaction, mass is conserved.
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