Q:

What are the three types of mixtures?

A:

The three general types of mixtures in chemistry are solutions, suspensions and colloids. All mixtures contain at least two different substances and can be liquids, gases or solids.

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Solutions are the simplest mixture, consisting of two substances that interact and have reasonably small particle sizes. A solution has a solvent and at least one solute, depending on how many substances are being mixed together. If any of the substances changes phase while making the solution, it is considered a solute. If there are no phase change between two or more substances, the substance that there is the most of is considered the solvent, while all the rest are solutes.

A suspension is a mixture where components must be forced to distribute evenly. In time, if left to rest, the components will separate into layers. A common example of this is oil and water, which needs to be shaken to ensure a temporarily uniform solution.

Colloids are mixtures where substances are evenly distributed, but not fully dissolved due to a large particle size. The substances with the largest particles can be filtered out through a membrane. To test for a colloid, a light is shone through the mixture. The light will simply shine through a true solution, but be clearly visible when shone on a colloid mixture.

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    What are mixtures in science?

    A:

    A mixture is the result of combining two or more substances that do not react chemically. In order for a solution or combination to be labelled as a mixture, it must be possible to separate the individual components through physical means, without resorting to chemical reactions.

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    How can I compare and contrast mixtures and pure substances?

    A:

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    A:

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