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Questions and Answers
What is the characteristic of a homogeneous mixture?
What is the characteristic of a homogeneous mixture?
- It can be separated by filtration
- It has a uniform composition (correct)
- It only contains two substances
- It has multiple distinguishable parts
Which of the following is an example of a heterogeneous mixture?
Which of the following is an example of a heterogeneous mixture?
- Oil and Water (correct)
- Brass
- Saltwater
- Air
What is the key point to identify a heterogeneous mixture?
What is the key point to identify a heterogeneous mixture?
- If the mixture is composed of only two substances
- If you can see multiple distinguishable parts (correct)
- If the mixture can be separated by magnetism
- If you can see only one clear solution
What is an example of a homogeneous mixture that is not a solution?
What is an example of a homogeneous mixture that is not a solution?
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Which of the following is a characteristic of both homogeneous and heterogeneous mixtures?
Which of the following is a characteristic of both homogeneous and heterogeneous mixtures?
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What is the difference between a homogeneous and heterogeneous mixture?
What is the difference between a homogeneous and heterogeneous mixture?
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Study Notes
Homogeneous Mixture vs Heterogeneous Mixture
- A homogeneous mixture has visibly indistinguishable parts, appearing as one clear solution.
- A homogeneous mixture has uniform composition, meaning the composition is the same everywhere in the mixture.
Examples of Homogeneous Mixtures
- Saltwater: appears as one clear solution, with no visible distinction between salt and water.
- Brass: an alloy of zinc and copper, with atoms distributed uniformly throughout the material.
- Air: a mixture of nitrogen, oxygen, argon, water vapor, and carbon dioxide, with a uniform composition.
Heterogeneous Mixture
- A heterogeneous mixture has multiple distinguishable parts.
- The composition of a heterogeneous mixture can vary by position.
Examples of Heterogeneous Mixtures
- Oil and Water: do not mix, with visible distinct layers of oil and water.
- Sand and Water: sand does not dissolve in water, resulting in visible distinguishable parts.
- Tossed Salad with Ranch: a mixture with visible, distinguishable parts of salad and ranch.
Key Points to Identify Type of Mixture
- If you can see only one clear solution, it's a homogeneous mixture.
- If you can see multiple distinguishable parts, it's a heterogeneous mixture.
Homogeneous Mixtures
- Have visibly indistinguishable parts, appearing as one clear solution.
- Composition is uniform, meaning the same everywhere in the mixture.
Examples of Homogeneous Mixtures
- Saltwater: a clear solution with no visible distinction between salt and water.
- Brass: an alloy of zinc and copper with atoms distributed uniformly throughout the material.
- Air: a mixture of nitrogen, oxygen, argon, water vapor, and carbon dioxide with a uniform composition.
Heterogeneous Mixtures
- Have multiple distinguishable parts.
- Composition can vary by position.
Examples of Heterogeneous Mixtures
- Oil and Water: do not mix, with visible distinct layers of oil and water.
- Sand and Water: sand does not dissolve in water, resulting in visible distinguishable parts.
- Tossed Salad with Ranch: a mixture with visible, distinguishable parts of salad and ranch.
Identifying Types of Mixtures
- One clear solution = homogeneous mixture.
- Multiple distinguishable parts = heterogeneous mixture.
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