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Questions and Answers
Which characteristic is most indicative of a heterogeneous mixture?
Which characteristic is most indicative of a heterogeneous mixture?
- It has uniform composition throughout.
- It can be separated into its individual components.
- Its different components are visible and distinct. (correct)
- It reacts chemically to form a new substance.
What is a common use of homogeneous mixtures in daily life?
What is a common use of homogeneous mixtures in daily life?
- Air, as it is uniformly mixed. (correct)
- Fruit salad consisting of various chopped fruits.
- Sand and salt mixture for construction.
- Salad dressing with visible oil and vinegar layers.
Which of the following best describes a homogeneous mixture?
Which of the following best describes a homogeneous mixture?
- Its properties are the same throughout. (correct)
- It is composed of more than two phases.
- It always contains solid components.
- It cannot be stirred or mixed.
Which scenario is an example of a heterogeneous mixture?
Which scenario is an example of a heterogeneous mixture?
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What occurs when a homogeneous mixture is created?
What occurs when a homogeneous mixture is created?
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Study Notes
Characteristics of Mixtures
- A heterogeneous mixture displays visibly different substances or phases, such as a salad or soil, where individual components can be identified.
- A homogeneous mixture has a uniform composition, meaning the individual components are not distinguishable; examples include saltwater or air.
Common Uses of Homogeneous Mixtures
- Homogeneous mixtures are commonly utilized in daily life, particularly in cooking and beverage preparation, such as sugar dissolved in tea or the uniform blend of ingredients in smoothies.
Descriptions of Mixtures
- A homogeneous mixture is best described as a single phase system where the composition is consistent throughout, ensuring that each sample taken exhibits the same characteristics.
Examples of Heterogeneous Mixtures
- Scenarios demonstrating heterogeneous mixtures include mixing sand and gravel, where each component retains its individual properties and can be separated physically.
Creation of Homogeneous Mixtures
- When a homogeneous mixture is created, substances are combined in such a way that they form a solution, and the particles are evenly distributed at a molecular level, making it impossible to identify the individual components.
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