Physical Science: Chapter 5, sec3
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This document discusses properties of mixtures and solutions. It defines a mixture as a combination of two or more substances that are not chemically combined and retain their individual identities. Mixtures can be separated by physical means like filtration or evaporation. A solution is a homogeneous mixture where particles are distributed evenly between a solute dissolved in a solvent. Solutions can be liquids, gases or solids, while insoluble substances form mixtures that are not true solutions.
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Physical Science: Chapter 5, sec3
- 1. Physical Science Chapter 5, Section 3 Notes from 10/28/10
- 2. Section 3 MixturesChapter 5 Properties of Mixtures • A mixture is a combination of two or more substances that are not chemically combined. • Each substance in a mixture keeps its identity because no chemical change happens when a mixture is made.
- 3. Section 3 MixturesChapter 5 Properties of Mixtures, • Mixtures can be separated by physical means, such as filtration, evaporation, and distillation. • The components of a mixture do not need to be mixed in a definite ratio.
- 5. Section 3 MixturesChapter 5 Solutions • A solution appears to be a single substance, but it is actually a homogeneous mixture composed of particles of two or more substances that are distributed evenly among each other. • In solutions, the solute is the substance that is dissolved. The solvent is the substance in which the solute is dissolved.
- 6. Section 3 MixturesChapter 5 Solutions, continued • A substance that is insoluble, or unable to dissolve, forms a mixture that is not a solution. • Solutions may be liquids, gases, or solids. • Alloys are solid solutions in which metals or nonmetals are dissolved in other metals.
- 7. Section 3 MixturesChapter 5 Solutions, continued • A substance that is insoluble, or unable to dissolve, forms a mixture that is not a solution. • Solutions may be liquids, gases, or solids. • Alloys are solid solutions in which metals or nonmetals are dissolved in other metals.