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Questions and Answers
Which type of mixture is characterized by being heterogeneous and not mixed evenly throughout?
Which type of mixture is characterized by being heterogeneous and not mixed evenly throughout?
- Colloid
- Alloy
- Suspension (correct)
- Solution
What is the main difference between mechanical mixtures and solutions?
What is the main difference between mechanical mixtures and solutions?
- Mechanical mixtures can be dissolved, while solutions cannot
- Mechanical mixtures are always liquid, while solutions can be solid or liquid
- Mechanical mixtures are visible in layers, while solutions mix evenly throughout (correct)
- Mechanical mixtures are homogeneous, while solutions are heterogeneous
Which type of mixture is sometimes referred to as a solid solution?
Which type of mixture is sometimes referred to as a solid solution?
- Suspension
- Alloy (correct)
- Solution
- Colloid
In which type of mixture can light not be shined through due to the particles being microscopic and evenly mixed throughout?
In which type of mixture can light not be shined through due to the particles being microscopic and evenly mixed throughout?
What are the main substances that make up bronze?
What are the main substances that make up bronze?
Define alloys and provide an example.
Define alloys and provide an example.
How can mechanical mixtures be divided, and what are the characteristics of each division?
How can mechanical mixtures be divided, and what are the characteristics of each division?
What is the difference between mechanical mixtures and solutions?
What is the difference between mechanical mixtures and solutions?
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Study Notes
Heterogeneous mixtures
- A heterogeneous mixture is a mixture where the components are not evenly distributed throughout the mixture.
- The different components can be easily identified and separated.
- Examples include sand and water, oil and water, and salad dressing.
Mechanical mixtures vs. solutions
- Mechanical mixtures comprise two or more substances that are physically combined but retain their individual properties. The components can be easily separated.
- Solutions are homogeneous mixtures where one substance is dissolved into another. The components cannot be easily separated without specialized techniques.
Solid solutions
- Alloys are examples of solid solutions.
- Alloys are mixtures of metals, or metals with other elements, that have different properties than the original metals.
Solutions
- In solutions, light can pass through and be seen because the particles are microscopic and evenly distributed.
Bronze
- Bronze is an alloy typically composed of copper and tin.
Alloys
- Alloys are mixtures of metals, or metals and other elements, that have different properties from the original metals.
- They are often created to improve strength, hardness, or corrosion resistance.
- Examples include bronze, steel, and brass.
Mechanical mixtures
- Mechanical mixtures can be categorized into suspensions and colloids.
- Suspensions are heterogeneous mixtures with large particles that settle out over time. Examples include sand and water.
- Colloids are mixtures where particles are dispersed throughout a medium, but they are not large enough to settle out easily. Examples include milk and fog.
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