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chapter15 vocab
vocabulary
| Term | Definition |
|---|---|
| Substance | is a types of matter with a fixed composition. |
| element | all atoms in a substance have the same identity. |
| compound | is a substance in which the atoms of two or more elements are combined in a fixed proportions. |
| heterogeneous mixture | A mixture in which different materials can be distinguished easily. |
| homogeneous mixture | contains 2 or more gaseous,liquid,or solid substances blended evenly. |
| solution | is 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 | is a typed of mixture with particles that are larger than those in solutions but not heavy enough to settle out. |
| Tyndall effect | is the scattering of light when pointed in a glass full of liquid. |
| suspension | is heterogeneous mixture containing a liquid in which visible particles. |
| physical property | is any characteristics that you can observe without changing the identity. |
| physical change | a change in size,shape, or state of matter. |
| distillaiton | is the process of separating substances in a mixture by evaporating a liquid and recondensing it's vapor. |
| chemical property | is 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 | is the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change. |