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Chpt Two

Properties of Matter

QuestionAnswer
Matter that always has exactly the same composition Pure Substance
A substance that cannot be broken down into simpler substances Element
The smallest particle of an element Atom
A substance that is made from two or more simpler substances and can be broken down into into simpler substances Compound
The parts of the mixture are noticeably different from one another Heterogeneous Mixture
The substance are so evenly distributed that is difficult to distinguish one substance in the mixture from another Homogeneous Mixture
When substances dissolve and form a homogeneous mixture, the mixture is the solution Solution
A heterogeneous mixture that separates into layers over time Suspension
Contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension Colloid
The tendency of a liquid to keep from flowing ;its resistance to flow Viscosity
A material's ability to allow heat to flow Conductivity
The ability of a solid to be hammered without shattering Malleability
The temperature at which a substance changes from solid to liquid Melting Point
The temperature at which a substance boils Boiling Point
The process that separates materials based on the size of their particles Filtration
The process that separates the substance in a solution by their boiling points Distillation
Occurs when some of the properties of a material change but the substance in the material remains the same Physical Change
Any ability to produce a change in the composition of matter Chemical Property
A material's ability to burn in the presence of oxygen Flammability
The property that describes how readily a substance combines chemically with other substances Reactivity
Occurs when a substance reacts and forms one or more new substances Chemical Change
Any solid that forms and separates from a liquid mixture Precipitate
Created by: physicalscience2
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