Science of Mixtures
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Questions and Answers

What type of mixture is formed when salt is dissolved in water?

  • Suspension
  • Colloidal mixture
  • Homogeneous mixture (correct)
  • Heterogeneous mixture

Sand and water form a homogeneous mixture.

False (B)

Name one physical method that can be used to separate mixtures.

Filtration

Air is a mixture of gases including oxygen, nitrogen, and ______.

<p>carbon dioxide</p> Signup and view all the answers

Match each mixture with its type:

<p>Air = Homogeneous Sand and water = Heterogeneous Seawater = Homogeneous Blood = Heterogeneous</p> Signup and view all the answers

Flashcards

What is a mixture?

A combination of two or more substances that are not chemically bonded together. Each substance keeps its individual properties.

How can mixtures be separated?

Mixtures can be separated back into their original components using physical methods like filtration, freezing, or distillation.

What is a homogeneous mixture?

A mixture where the components are evenly distributed throughout, making it look uniform. Example: Salt dissolved in water.

What is a heterogeneous mixture?

A mixture where the components are not evenly distributed and you can see distinct parts. Example: Sand and water.

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Where do we find mixtures?

Air, seawater, and even our blood are all examples of mixtures found in our everyday world.

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Study Notes

Mixtures

  • Mixtures are combinations of two or more substances that are not chemically bonded.
  • Substances in a mixture retain their individual properties.
  • Examples include sand and water, where sand remains sand and water remains water.
  • Mixtures can be separated by physical methods like filtration, freezing, and distillation.
  • These methods work because the substances are not chemically bonded.

Types of Mixtures

  • Homogeneous Mixtures: Have uniform properties and composition throughout.
  • Example: Salt dissolved in water.
  • Heterogeneous Mixtures: Have varying properties and compositions in different parts.
  • Example: Sand mixed with water.

Examples of Mixtures

  • Air is a mixture of gases (oxygen, nitrogen, carbon dioxide).
  • Seawater is a mixture of salt and water.
  • Blood is a mixture of cells and fluids.

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Description

Explore the fascinating world of mixtures in this quiz. Learn about the differences between homogeneous and heterogeneous mixtures, and discover real-life examples like seawater and blood. Test your knowledge on the properties and separation methods of mixtures.

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