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Chapter 15

Classification of Matter

QuestionAnswer
What is the definition of matter? Anything that has mass & takes up space.
What is the difference between a substance & a mixture? Substance = FIXED composition of an element or compound, CAN'T be broken down into simpler components & still keep same properties Mixture = VARIED composition, CAN be separated into its different substances
What are some physical means of separation? Sifting, magnetic attraction, flotation, filtration, evaporation, distillation
What is the difference between a colloid & a compound? A colloid is a heterogeneous mixture with a varied composition whose particles do not readily settle out. A compound is a substance in which exact elements are always combined in the same proportion.
Created by: jmunson
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