Chapter 13 Forms of Matter
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How are mixtures classified?
- Mixtures are not pure substances because they contain more than one element or compound.
- Solutions is a mixture that looks the same everywhere. Mixtures that are partially blended appear cloudy such as rivers that contain a mixture of water, rock and soil.
What is mixture?
Two materials that are physically combined of two or more substances. The substances in a mixture keep their own properties without forming new substances.
What are Solutions?
- When a substances in a mixture are blended completely. There are 3 types of solutions:
- liquid,gas& solid.
What are colloids?
Colloids have properties in between those of solutions and heterogeneous mixtures. There are many types of colloids, such as emulsion, aerosols, foams, and gels.
What are suspensions?
Suspensions form when one substance is insoluble or does not dissolve in a solvent.
What are heterogeneous mixtures?
Heterogeneous mixtures settle into layers in a fluid. They are either cloudy or opaque such as oil and vinegar salad dressing. Examples of heterogeneous mixtures are suspensions.
What is an emulsion?
A liquid (fat) spread through another liquid (water).
What are homogeneous mixtures?
Substances inn a mixture that are blended completely like salt in water.
What are properties and how are they formed?
The substances in a mixture keep their own properties without forming new substances.
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