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Ch. 15 -1
Matter
Question | Answer |
---|---|
Substance | is a type of matter with a fixed composition |
Element | is a substance made up of atoms that are all like |
Compounds | a substance with more elements it's chemically combined in fixed proportion |
Mixtures | is matter composed of substances that can be separated by physical means |
Heterogeneous Mixture | Mixture in different materials remain distinct |
Suspensions | is a mixture made of a liguid solid particles that settle |
Colloid | is mixture with particles that never settle |
Tyndall Effect | is a scattering light beam passing through a colloid |
Homogeneous Mixture | is a mixture remains constantly and uniformly mixed and has small particles that they cannot be seen |
Solution | is a same homogeneous mixture |
Gold Leaf | beaten or flattened gold |
Physical Change | a change in size shape , or state of matter that remain the same |
Distillation | the process of separating substances in a mixture by evaporating a liguid and recondensing |
Chemical Property | material that can be observe that produces one or more new substances |
Law of Conservation of Mass | states that of no external forces act on a group of object, their total momentum does not change |
Weathering | when rocks split, cracks, freezes or expands from physical change |