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chapt. 15
composition of matter
Term | Definition |
---|---|
substance | a type of matter with a fixed composition |
element | a group of atoms that have the same identity |
compound | a substance in which the atoms of to or more elements are combined in a fixed proportion |
heterogeneous mixture | a mixture in which different materials can be distinguished |
homogeneous mixture | two or more gaseous, liquid, or solid, 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 the container |
suspension | a heterogeneous mixture containing a liquid in which visible particles settle |