Mixtures and Solutions

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically combined. Examples include salad, air, and sand.

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What is a solution?

Back

A solution is a special type of mixture where one substance (the solute) is completely dissolved in another substance (the solvent). An example is saltwater.

Front

What is a solute?

Back

A solute is the substance that is dissolved in a solution. For example, in saltwater, salt is the solute.

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What is a solvent?

Back

A solvent is the substance that dissolves the solute in a solution. In saltwater, water is the solvent.

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What is the difference between a mixture and a solution?

Back

A mixture can be separated by physical means and does not have a uniform composition, while a solution has a uniform composition and cannot be easily separated.

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What is filtration?

Back

Filtration is a process used to separate solids from liquids or gases using a filter. For example, filtering coffee grounds from brewed coffee.

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What is evaporation?

Back

Evaporation is the process of turning a liquid into vapor. It can be used to separate a solute from a solvent, like when saltwater is heated.

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What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout. An example is vinegar.

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What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition. An example is a salad.

Front

What is concentration in a solution?

Back

Concentration refers to the amount of solute present in a given amount of solvent or solution. A concentrated solution has a lot of solute.