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ch 15 vocab TP

Sections 1,2,3

QuestionAnswer
substance a type of matter with a fixed composion
element a substance have the same identity
compound a substance in which the atoms of two or more elements are combined in a fixed proportion
heterogeneous mixture a mixture in which different materials can be distinguished
homogeneous mixture contains 2 or more gaseous,liquid,or solid substances blended evenly throughout
solution a homogeneous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container
colloid a type of mixture with particles that are larger than those in solutions but not heavy enough to settle out
Tyndall effect the scatter of light by colloid particals
suspension a heterogeneous mixture containing a liquid in which visible particles settle
Physical property the substances that make up the material
physical change change in size shape or state of mator
distillation a mixture by evaporating a liquid and recondensing its vapor
chemical property a characteristic of a substance that includes whether it can undergo a certain chemical change
chemical change a change of one substance to another
law of conservation of mass mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change
Popular Physical Science sets

 

 



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