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15Vocab

Classification of Matter

QuestionAnswer
Substance Type of matter with a fixed composition.
Element All atoms in a substance has the same identity.
Compound A substance with two or more elements combined in a fixed proportion.
Heterogeneous Mixture A mixture in which different materials can be distinguished easily.
Homogeneous Mixture A mixture in which it contains two or more gaseous, liquid, or solid substances blended evenly throughout.
Solution A homogeneous mixture of particles so small that they cannot be seen without a microscope and will never settle out.
Colloid A type of mixture with particles that are larger than those in solutions but not heavy enough to settle out.
Tyndall Effect Scattering of a light beam as it passes through a colloid.
Suspension A heterogeneous mixture containing a liquid in which visible particles settle.
Physical Property A characteristic of a material that you can observe without changing the identity of the substances that make up the material.
Physical Change Change in size, shape, or state of matter.
Distillation Process of separating substances in a mixture by evaporating a liquid recondensing its vapor.
Chemical Property Characteristic of a substance that indicates whether it can undergo a certain chemical change.
Chemical Change A change of one substance to another. (can never go back to the original substance)
Law of Conservation of Mass Mass of all substances present before a chemical change equals the mass of all the substances remaining after the change.
Created by: mrscummings
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