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Chapter 15 Vocab

TermDefinition
Substance simply a substance is a type of matter with a fixed composition.
Element all atoms in a substance have the same identity that substance is.
Compound substance in which the atoms of two or more elements are combined in a fixed composition.
heterogeneous mixture A mixture in which different materials can be distinguished easily.
Homogeneous mixture Solid,liquid,or gas that contains two or more 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 Scattering of light by colloidal particles
Suspension a heterogeneous mixture containing a liquid in which visible particles settle.
Physical Property any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material.
Physical change A change in size, shape, or state of matter
Distillation the process for separating substances in a mixture by evaporating a liquid and re condensing its vapor
Chemical property a characteristic of a substance that indicates whether it can undergo a certain chemical change.
Chemical change A change of substance to another
Law of conservation of mass the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change.
Created by: isaacarenas27
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