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chapter 15 vocab

TermDefinition
substance a type of matter with a fixed composition
element if all the atoms in a substance have the same identity, that substance is an element.
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 easily.
homogeneous mixture containing two or more gaseous, liquids, or slid substances blended evenly throughout.
solution a homogeneous mixture of particles so small that they cannot be seen with a microscope
colloid 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 that you can observe without without changing the identity of the substances that make up the material.
physical change a change in size, shape, or state of matter.
distillation the process for separating substance in a mixture by evaporating a liquid and recondensing its vapor.
chemical property a characteristic of a substance that indicates whether it can undergo a certain chemical change
chemical change a change of one 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: ChristianRamos98