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Chapter 2 Vocabulary

TermDefinition
Pure Substance Matter that has exactly the same composition is classified as a:
Element a substance that cannot be broken down into simpler substances
Atom the smallest particle of an element
Compound a substance that is made from two or more simpler substances and can be broken down into those simpler substances
Heterogeneous Mixture the parts of the mixture are noticeably different from one another
Homogeneous Mixture the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another
Solution When substances dissolve and form a homogeneous mixture,the mixture that forms is called
Suspension a heterogeneous mixture that separates into layers over time
Colloid contains some particles that are intermediate in size between the small particles and the larger particles in a suspension
Physical Property any characteristic of a material that can be observed or measured without changing the composition of the substances in the material.
Viscosity Something's resistance to flowing
Conductivity A material's ability to allow heat to flow
Malleability The ability of a solid to be hammered without shattering.
Melting Point The temperature at which a substance changes from a solid to a liquid
Boiling Point The temperature at which a substance boils
Filtration a process that separates materials based on the size of their particles
Distillation a process that separates the substances in a solution based on their boiling points
Physical Change occurs when some of the properties of a material change, but the substances in the material remain the same
Chemical Property Any ability to produce a change in the composition of matter
Flammability a material's ability to burn in the presence of oxygen
Reactivity how readily a substance combines chemically with other substances
Chemical Change occurs when a substance reacts and forms one or more new substances
Precipitate any solid that forms and separates from a liquid mixture
Created by: shyanne.funk
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