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Chapter 2 vocab

Words from chapter 2

TermDefinition
Pure substance matter that always has exactly the same composition; an element or compound
Elemant a substance that can't 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 simpler substances
Heterogeneous Mixture a type of mixture in which the parts of the mixture are noticeably different from one another
Homogeneous Mixture a type of mixture in which the substances are so evenly distributed that it's difficult to distinguish one substance in the mixture from another
Solution a mixture that forms when substances dissolve and form a homogeneous mixture
Suspension a heterogeneous mixture that separates into layers over time
Colloid a mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension
Physical Property any characteristic of a material that can be observed or measured without
Viscosity the tendency of a liquid to keep from flowing; resistance to flowing
Conductivity a material's ability to allow heat or electric charges to flow
Malleability an ability of a solid that can 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; the temperature at which water vapor pressure is equal to atmospheric pressure
Filtration a process that separates materials based on their size of the particle
Distillation a process that separates the substances in a solution based on their boiling points
Physical Change a change that occurs when some properties of a material change, but the substances of the material stay the same
Chemical Property any property that produces a change in the composition of matter
Flammability the material ability to burn in the presence of oxygen
Reactivity the property that describes how readily a substance combines chemically with other substances
Chemical Change change that occurs when the substance reacts and forms one or more substances
Precipate a solid that forms and separates from a liquid
Created by: michaela.querry