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Homogeneous Mixture: Definition & Examples

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Derrick Arrington

Derrick has taught biology and chemistry at both the high school and college level. He has a master's degree in science education.

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Christianlly Cena

Christianlly has taught college physics and facilitated laboratory courses. He has a master's degree in Physics and is pursuing his doctorate study.

We use many types of mixtures in everyday life. In this lesson, you will learn about a type of mixture known as a homogeneous mixture so you will be able to identify them in the future. Updated: 03/24/2021

What Are Homogeneous Mixtures?

There are all types of mixtures, and we encounter them frequently in our daily lives. Mixtures can be found in the liquids we drink, the foods we eat, and the air we breathe.

Homogeneous mixtures have the same composition throughout, and the individual parts of the mixture are not easily identifiable. Homogeneous mixtures are also referred to as solutions. While we normally think of solutions as liquids, such as soft drinks and lemonade, they can actually be in the form of solids, liquids, and gases. Homogeneous mixtures can also be a combination of these forms, as in a liquid-gas mixture.

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Examples of Homogenous Mixtures

Homogeneous mixtures are all around us. Let's examine the different types of homogeneous mixtures we may encounter. One type of homogeneous mixture involves solid substances being combined. An example of this type of mixture is steel, which is a mixture of carbon and iron metal. These types of homogeneous mixtures involving metals are often referred to as alloys. It is important to note that no matter what size the piece of steel, you should always find the same ratio of carbon to iron in the composition, even though you cannot see the specific molecules of carbon and iron.

Gases can be combined to form homogeneous mixtures as well. The air that you are breathing right now is an example of this. It is composed of nitrogen, oxygen, carbon dioxide, and other gases combined. While we cannot pick out the individual molecules in the air around us, the composition of the air is the same whether you are in a small room or a huge stadium. This makes the air we breathe an example of a homogeneous mixture.

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Additional Activities

Homogeneous Mixture: Identifying Error Activity

This activity will help you assess your knowledge of homogeneous mixtures.

Guidelines

For this activity, print or copy this page on a blank piece of paper. Identify the word that makes the sentence wrong and explain your answer. Neatly write the LETTER of your answer or NO ERROR on the appropriate blank space provided before the number and your EXPLANATION below the sentence.


Sentences

__________ 1.) The a.) composition of a homogeneous mixture b.) may differ and the individual parts of the mixture are c.) not easily identifiable.


__________ 2.) A a.) homogeneous mixture of b.) metals is referred to as c.) steel.


__________ 3.) Being composed of a.) nitrogen, oxygen, carbon dioxide, and other gases combined, b.) the air is a good example of a c.) homogeneous mixture.


__________ 4.) a.) Iced soda in a glass, topped with ice cream is a homogeneous mixture that b.) uniformly distributes the parts within the c.) beverage.


__________ 5.) a.) Homogeneous mixtures can contain b.) one form of matter all throughout the c.) solution.


Answer Key

1.b

A homogeneous mixture has a uniform composition all throughout.

2. c

Steel is a type of alloy which is a homogeneous mixture involving metals.

3. NO ERROR

The air's composition is always the same everywhere making it a good example of a homogeneous mixture.

4. a

This type of drink does not mix all the parts well since a topping is involved.

5. b

It can contain solid, liquid, or gas phases mixed together.

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