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Chapter 15


Chemical Change A change of one substance to another.
Chemical Property A characteristic of a substance that indicates whether it can undergo a certain chemical change.
Colloid A type of mixture with particles that are larger than those in solutions but not heavy enough to settle out.
Compound A substance in which the atoms of two or more elements are combined in a fixed proportion.
Distillation The process for separating substances in a mixture by evaporating a liquid and recondensing its vapor.
Element If all the atoms in a substance have the same identity.
Heterogeneous Mixture A mixture in which different materials can be distinguished easily.
Homogeneous Mixture Contains two or more gaseous, liquid, or solid substances blended evenly throughout.
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.
Physical Change A change is size, shape, or state of matter.
Created by: Chris C. Hamm